Home Vestnik MGSU Library Vestnik MGSU 2013/8

Vestnik MGSU 2013/8

DOI : 10.22227/1997-0935.2013.8

Articles count - 22

Pages - 176

ARCHITECTURE AND URBAN DEVELOPMENT. RESTRUCTURING AND RESTORATION

АRCHITECTURAL RUINS PHENOMENON

  • Fedorov Viktor Vladimirovich - Tver Technical University (TSTU) Doctor of Culturology, Professor, chair, Department of Architecture and Urban Planning, Tver Technical University (TSTU), 22 Naberezhnaya Af. Nikitins, Tver, 170026, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Skibina Elena Vladimirovna - Tver State Technical University (TvGTU) assistant lecturer, Department of Architecture and Urban Planning, Tver State Technical University (TvGTU), office 322, 22 nab. Af. Nikitina, Tver, 170026, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 7-13

Modern academic research has a large area of behaviorist and environmental studies focusing on the spatial factor employed to explain the reality. The concept of understanding ruins as monuments of the past dates back to the days of the Renaissance. Exposed to destruction in the past ages, they have acquired numerous meanings, thus, becoming a source of ideas about the past. It is appropriate to speak about “historic” and “modern” ruins. In the first case, the time distance between the moments of construction and perception of ruins is quite large. In the second case, ruins comprise the outcome of inaccurate design, construction or maintenance of buildings, natural disasters or wars. They also have a symbolic and semantic content. The interest in the phenomenon of ruins has brought forth the notion of«false ruins» (in landscape parks) and «future ruins» (paintings and fiction). The spatial and time scale of the urban environment (including ruins) generates a powerful symbolic content. Ruins often symbolize a pathological state of the society that strives to minimize the presence of such objects in the everyday life. Developing culture prefers creative motives and tends to replace destructive ones. Since the 1980s, the phenomenon of architectural ruins has been rapidly expanding its presence in the virtual space due to:1) the complexity of visual assessments because of the lack of familiar structural elements to be employed to estimate the size of buildings; 2) the violation of the balance of space, mass, shape, typical of architectural creations; 3) the dominance of the deaf mass (remains of columns, walls, etc.); 4) the lack of spatial reference, volume, symmetry, reinforcing irrationality in perception of ruins (the loss of the original image destroys the unity of form and content); 5) the loss of opinions on the functional purpose of buildings; 6) exclusive picturesque ruins; 7) background lighting, colour and texture of surfaces.The complexity of experiences related to the perception of ruins is determined by many circumstances. Special attention should be paid to: a) the presentation of ruins as a particular case of the architectural sphere; 2) the development of typology of ruins, important for the understanding of the phenomenon as a whole; 3) the study of particular architectural ruins in the virtual reality; 4) the objective of identifying the potential impact that the phenomenon of architectural ruins may produce on the mankind.

DOI: 10.22227/1997-0935.2013.8.7-13

References
  1. Kiyanenko K.V. Arkhitekturnaya nauka v SShA: «EDRA» i chelovekoorientirovannye issledovaniya [Architectural Science in the United States: EDRA and Human Oriented Researches]. Academia [Academy]. Moscow, 2011, no. 1, pp. 38—43.
  2. Nowak M. Five Rules for the Evolution of Cooperation. Science. 2006, vol. 314, pp. 1560—1563.
  3. O'Connell K. Tactical Urbanism Has Caught On in a Big Way. Architect, July 2013, pp. 38—40.
  4. Ukhnalev A.E. Ruiny. Vremya. Arkhitektura [Ruins. Time. Architecture] Arkhitekturnyy vestnik [Architectural Herald]. 1997, no. 4, pp. 61—63.
  5. Jodidio Ph. Architecture Now. London, Taschen, 2005, 447 p.
  6. Zenkin S.N. Frantsuzskiy romantizm i ideya kul'tury (aspekty problemy) [French Romanticism and Idea of Culture (Problem Aspects)]. Moscow, RGGU Publ., 2001, pp. 32—39.
  7. Sardarov A. Ruiny kak arkhitekturno-khudozhestvennoe yavlenie [Ruins as Architectural and Artistic Phenomenon]. Arkhitektura i stroitel'stvo [Architecture and Construction]. 2010, no. 5 (216). Available at: http://ais.by/story/11799. Date of access: 29.07.2013.
  8. Shpeer A. Vospominaniya [Memoirs]. Moscow, Zaharov publ., 2010. 688 p.
  9. Mitin I. Neskol'ko zamechaniy o ruinakh [Some Remarks on Ruins]. Available at: http://os.colta.ru/art/projects. Date of access: 24.05.2011.
  10. Morris U. Iskusstvo i zhizn' [Art and Life]. Moscow, 1973, 324 p.
  11. Shenle A. Apologiya ruiny v filosofii istorii [Apology of Ruin in Philosophy of History]. Available at: http://magazines.russ.ru/nlo/2009/95. Date of access: 14.02.2012.
  12. Losev A.F. Problema simvola i realisticheskoe iskusstvo [The Problem of Symbol and Realistic Art]. Moscow, 1995, 446 p.

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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

STUDY OF INTERRELATIONBETWEEN PLASTICITY AND ELASTICITY OF METALS

  • Gustov Yuriy Ivanovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Machinery, Machine Elements and Process Metallurgy, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-94-95; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Allattouf Hassan - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Machinery, Machine Elements and Process Metallurgy, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shоsse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 14-20

The operational capacity of metal materials as part of structural elements of industrial and civil buildings depends on plastic deformability of metals. This property of construction steels is assessed through the employment of the overall elongation coefficient consisting of uniform and concentrated components.For metal structural elements, assessment of steel plasticity using the uniform elongation method (rather than overall elongation) is preferable. This component characterizes the tendency of steels to brittle destruction, fatigue resistance and cold brittleness.Therefore, the study of interrelation between plasticity and elasticity of steels is very important. Dependences of impact elasticity and failure elasticity on their uniform elongation are studied. The values of impact elasticity and failure elasticity are obtained experimentally in the process of testing of the 40ХЛ grade steel hardened at the temperature of 860 °C and tempered at the temperature of 200 °C.The elongation factor is calculated using the formula of uniform elongation. For steels under consideration, formulas of impact elasticity and failure elasticity are obtained, where uniform elongation is expressed as a fraction.

DOI: 10.22227/1997-0935.2013.8.14-20

References
  1. Baldin V.A., Potapov V.N., Yakovleva V.S. Otsenivat' rabotosposobnost' konstruktsiy po ravnomernomu otnositel'nomu udlineniyu staley [Assessment of Performance of Structures on the Basis of Uniform Relative Elongation of Steels]. Promyshlennoe stroitel'stvo [Industrial Engineering]. 1976, no. 11, pp. 37—38.
  2. Baldin V.A. O raschete stal'nykh konstruktsiy na khrupkuyu prochnost' [Brittle Fracture Analysis of Steel Structures]. Stroitel'naya mekhanika i raschet sooruzheniy [Structural Analysis and Analysis of Structures]. 1969, no. 3, pp. 4—5.
  3. Gustov Yu.I., Gustov D.Yu. K razvitiyu nauchnykh osnov stroitel'nogo metallovedeniya [Development of Research Fundamentals of Metal Science in Civil Engineering]. Teoreticheskie osnovy stroitel'stva. X Rossiysko-pol'skiy seminar. Doklady. [Theoretical Fundamentals of Construction. 10th Russian-Polish Seminar. Reports] Warsaw, 2001, pp. 307—314.
  4. Gustov Yu.I., Gustov D.Yu., Voronina I.V. Metodologiya opredeleniya tribo-tekhnicheskikh pokazateley metallicheskikh materialov [Methodology for Identification of Tribo-technological Values of Metal Materials]. Teoreticheskie osnovy stroitel'stva. XVI Rossiysko-slovatsko-pol'skiy seminar. Sb. dokladov [Theoretical Fundamentals of Construction. 16th Russian-Polish Seminar. Collected Papers]. Moscow, 2007, pp. 339—342.
  5. Belikov S.B., Volchok I.P., Vil'nyanskiy A.E. Povyshenie kachestva khromistykh i margantsovistykh staley [Quality Improvement of Chromium and Manganese Steels]. Stroitel'stvo, materialovedenie, mashinostroenie. Sb. nauchn. tr. [Construction, Material Science and Machine Building. Collected research papers]. Dnepropetrovsk, PGASA Publ., 2001, no. 12, pp. 17—176.
  6. Eysmondt Yu.G. Issledovanie okhlazhdayushchikh sred, al'ternativnykh zakalochnym maslam [Research into Cooling Media Alternative to Tempering Oils]. Materialovedenie i termicheskaya obrabotka metallov [Material Science and Thermal Treatment of Metals]. 2000, no. 11, pp. 32—36.
  7. Pashkov P.O. Razryv metallov [Fracture of Metals]. Leningrad, Sudpromgiz Publ., 1960, 242 p.
  8. Bol'shakov V.I. Substrukturnoe uprochnenie konstruktsionnykh staley [Sub-structural Strengthening of Structural Steels]. Canada, 1998, 316 p.
  9. Einf?rung in die Werkstoffwissenschaft.2.Aufl.Hrsg. Leipzig, W. Schulze, VEB DVfG, 1975, 431 p.
  10. Einf?rung metallischer Werkstoffe Hrsg. Leipzig, G.Schott, VEB DVfG, 1977.
  11. Belov P.Yu., Safonov B.P., Begova A.V., Martsenko K.N. Issledovanie plastichnosti stali pri deformatsii sharikovym indentorom [Research into Steel Plasticity of Steel Exposed to Ball Penetrator Deformations]. Trudy NI RKhTU im. D.I. Mendeleeva [Works of Russian University of Chemical Technology]. Novomoskovsk, 2012, no. 9, pp. 41—43.
  12. Vinogrodov V.N., Sorokin G.M. Mekhanicheskoe iznashivanie staley i splavov [Mechanical Wear of Steels and Alloys]. Moscow, Nedra Publ., 1996, 364 p.

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ASSESSMENTOF SEISMIC STABILITY OF BUILDINGS THAT HAVE SEISMICPROTECTION IN THE FORM OF ELASTOMERIC ISOLATORS

  • Mkrtychev Oleg Vartanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, head, Scientific Laboratory of Reliability and Seismic Resistance of Structures, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bunov Artem Anatol’evich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, engineer, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 21-28

Nowadays, various systems of seismic protection are applied to assure seismic protection of buildings and structures, located in earthquake areas. The greatest prevalence and popularity has been attained by the systems of active seismic protection.In this article, the authors study the efficiency of application of an active seismic protection system by taking high-damping rubber elastomeric isolators as an example. Calculations and their comparative analysis were made for a high-rise reinforced concrete building, and their exposure to the seismic impact was examined. Those calculations were made both with and without the application of the active seismic isolation system. Calculations were carried out by means of the linearly-spectral method using Lira software. Maximum relative horizontal moments arising on the top of the building and forces applied to the elements of walls and columns were compared. On the basis of the results of the calculations and their comparative analysis, the conclusion is drawn that elastomeric isolators may be efficiently applied as an active seismic protection system.

DOI: 10.22227/1997-0935.2013.8.21-28

References
  1. Ormonbekov T.O., Begaliev Yu.T., Derov A.V., Maksimov G.A., Pozdnyakov S.G. Primenenie tonkosloynykh rezinometallicheskikh opor dlya seysmozashchity zdaniy v usloviyakh territorii Kyrgyzskoy Respubliki [Application of Thin-layered Rubber-metal Bearings to Assure Seismic Protection of Buildings in the Environment of the Republic of Kirghizia]. Bishkek, Uchkun Publ., 2005, 215 p.
  2. Catalogue on Elastomeric Isolators Series SI-H 550/154. FIP Industriale S.P.A.
  3. Kircher Ch.A. NEHRP Recommended Provisions: Design Examples. Chapter 12: Seismically Isolated Structures. Federal Emergency Management Agency. FEMA P-751, Washington, D.C., 2012.
  4. Prestandard and Commentary for the Seismic Rehabilitation of Buildings (FEMA 356). Chapter 9.2: Seismic Isolation System. Federal Emergency Management Agency. Washington, D.C, 2000.
  5. Constsntinou M.C., Kalpakidis I., Filiatrault A., Ecker Lay R.A. LRFD-Based Analysis and Design Procedures for Bridge Bearings and Seismic Isolators. Technical Report MCEER-11-0004. New York, Buffalo, September 26, 2011, p. 204.
  6. Ayzenberg Ya.M., Smirnov V.I., Akbiev R.T. Metodicheskie rekomendatsii po proektirovaniyu seysmoizolyatsii s primeneniem rezinometallicheskikh opor [Methodological Recommendations on Seismic Isolation Design with the Application of Rubber-metal Bearings]. Moscow, RASS Publ., 2008, 46 p.
  7. Naeim F., Kelly J.M. Design of Seismic Isolated Structures: from Theory to Practice. New York, John Wiley, 1999, 289 p.
  8. Mkrtychev O.V., Mkrtychev A.E. Analiz effektivnosti rezinometallicheskikh opor pri stroitel'stve vysotnykh zdaniy v seysmicheskikh rayonakh [Efficiency Analysis of Rubber-metal Bearings in the Course of Construction of High-rise Buildings in Earthquake Areas]. Vestnik NITs ”Stroitel'stvo” [Proceedings of Research Centre for Construction]. 2010, no. 2 (XXVII), pp. 126—137.
  9. Mkrtychev O.V., Dzhinchvelashvili G.A. Problemy ucheta nelineynostey v teorii seysmostoykosti (gipotezy i zabluzhdeniya) [Problems of Nonlinearities Consideration in the Seismic Stability Theory (Hypotheses and Delusions)]. Moscow, MGSU Publ., 2012, 192 p.

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THE GLEASON DISTANCE

  • Ovchintsev Mikhail Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Physical and Mathematical Sciences, Associate Professor, Department of Higher Mathematics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 29-34

First, some basic concepts are considered in the paper, including the Mobius transformation, the unit ball in the space of related analytical functions in the unit circle, and the Gleason distance. The author proves a theorem (demonstrated without any proof) that makes it possible to calculate the Gleason distance between the two opposite points in the pre-set unit circle. The extremum feature appears in the calculation of the Gleason distance, which coincides with the identity map of the unit circle. The Gleason distance between the two points coincides with the regular Euclidean distance between these points. Further, the author considers the Gleason distance in the simply connected domain. The simply connected domain is conformally represented in the unit circle. The two points in the simply connected domain are represented as the corresponding points in the unit circle. The author has proven that the Gleason distance between the two points in the simply connected domain coincide with the Gleason distance between two corresponding points in the unit circle. Then, the author presents a lemma (a statement without proof). It is applied to the problem of the Gleason distance between the two points in the simply connected domain. Next, the author presents several special cases: the Gleason distance as calculated between the two points in the unit circle and between the two points in the upper half-space. The two points are located (with both points being positive numbers) in the unit circle.

DOI: 10.22227/1997-0935.2013.8.29-34

References
  1. Garnett Dzh. Ogranichennye analiticheskie funktsii [Limited Analytical Functions]. Moscow, Mir Publ., 1984, pp. 50—51.
  2. Grunsky H. Eindentige beschrankte Junktionen zu mechrfach Zusammenhangenden Gebieten Jahreber. Deutsche Math. Verein. 1940, B-d. 50, pp. 230—255; 1942, B-d.52, pp. 118—32.
  3. Rogosinski W.W., Schapiro H. On Certain Extremum Problems for Analytical Functions. Acta Math. 1954, vol. 90, no. 3, pp. 287—318.
  4. Khavinson S.Ya. Ob odnoy ekstremal'noy zadache v teorii analiticheskikh funktsiy [On an Extremum Problem in the Theory of Analytical Functions]. Uspekhi matematicheskikh nauk [Successes of Mathematical Sciences]. 1949, no. 4(32), pp. 158—159.
  5. Khavinson S.Ya. O nekotorykh ekstremal'nykh problemakh v teorii analiticheskikh funktsiy [On Some Extremum Problems in the Theory of Analytical Functions]. Uchenye zapisi MGU. Matematika [Scientific Notes of MGU. Mathematics] 1951, vol. 148, no. 4, pp. 133—143.
  6. Khavinson S.Ya. Ekstremal'nye zadachi dlya nekotorykh klassov analiticheskikh funktsiy v konechnosvyaznykh oblastyakh [Extremum Problems for Some Classes of Analytical Functions in Simply Connected Domains]. Matematicheskiy sbornik [Collection of Mathematics Works]. 1955, vol. 36(78), no. 3, pp. 445—478.
  7. Tumarkin G.Ts., Khavinson S.Ya. O teoreme razlozheniya dlya analiticheskikh funktsiy klassa Ep v mnogosvyaznykh oblastyakh [On Expansion Theorem for Ep-class Analytical Functions in Multiconnected Domains]. Uspekhi matematicheskikh nauk [Successes of Mathematical Sciences]. 1958, vol. 13, no. 2, pp. 223—228.
  8. Tumarkin G.Ts., Khavinson S.Ya. Issledovanie svoystv ekstremal'nykh funktsiy s pomoshch'yu sootnosheniy dvoystvennosti v ekstremal'nykh zadachakh dlya klassov analiticheskikh funktsiy v mnogosvyaznykh oblastyakh [Research into Properties of Extremum Functions Using Duality Relations in Extremum Problems for Classes of Analytical Functions in Multiconnected Domains]. Matematicheskiy sbornik [Collection of Mathematics Works]. 1958, vol. 46(88), no. 2, pp. 192—228.
  9. Khavinson S.Ya. Teoriya ekstremal'nykh zadach dlya ogranichennykh analiticheskikh funktsiy, udovletvoryayushchikh dopolnitel'nym usloviyam vnutri oblasti [The Extremum Problems Theory for Limited Analytical Functions Meeting Supplementary In-domain Conditions]. Uspekhi matematicheskikh nauk [Successes of Mathematical Sciences]. 1963, vol. 18, no. 2(110), pp. 25—98.
  10. Khavinson S.Ya. O predstavlenii ekstremal'nykh funktsiy v klassakh Eq cherez funktsii Grina i Neymana [Using Green’s and Neumann’s Functions to Represent Eq-class Extremum Functions]. Matematicheskie zametki [Mathematical Notes]. 1974, vol. 16, no. 5, pp. 707—716.

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FOURIER SERIES IN RESPECTOF LOADED ORTHOGONAL POLYNOMIALS

  • Osilenker Boris Petrovich - Moscow State University of Civil Engineering (MGSU) Doctor of Physical and Mathematical Sciences, Professor, Professor, Department of Higher Mathematics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 35-14

The article has findings on convergence and additivity (uniform and almost universal) of Fourier series in respect of loaded orthonormalized polynomials. The findings are applied to the Fourier series in respect of loaded Jacobi polynomials. The objective of research into loaded systems of mathematical physics was formulated in the classical book by R. Courant and D. Hilbert “Methods of Mathematical Physics”. Many researchers drive attention to polynomial systems, as they are used in the study of the Sturm–Liouville problem with a parameter in the boundary conditions, loaded integral equations and Schrodinger point potentials.As for applied problems, they are immediately related to important and frequent types of problems concerning concentrated loads, including oscillations of a heterogeneous loaded rod, torsional oscillations of a rod having pulleys at the ends, propagation of heat inside the rod having concentrated heat sources at the ends, etc.

DOI: 10.22227/1997-0935.2013.8.35-14

References
  1. Aliev S.Z. Bazisnye svoystva kornevykh funktsiy odnoy spektral'noy zadachi so spektral'nym parametrom v granichnykh usloviyakh [Basic Properties of Primary Functions in a Certain Spectral Problem Having a Spectral Parameter in the Boundary Conditions]. Doklady RAN [Reports of the Russian Academy of Sciences]. 2010, vol. 433, no. 5, pp. 583—586.
  2. Vinokurov V.A., Sadovnichiy V.A. Asimptotika sobstvennykh znacheniy i sobstvennykh funktsiy i formula sleda dlya potentsiala, soderzhashchego funktsiyu [Asymptotic Behaviour of Eigenvalues and Eigenfunctions and the Trace Formula for the Potential Containing a Function]. Differentsial'nye uravneniya [Differential Equations]. 2002, no. 7, pp. 735—751.
  3. Il'in V.A. Smeshannaya zadacha, opisyvayushchaya protsess uspokoeniya kolebaniy sterzhnya, sostoyashchego iz dvukh uchastkov raznoy plotnosti i uprugosti, pri uslovii sovpadeniya vremeni prokhozhdeniya volny po kazhdomu iz etikh uchastkov [Mixed Problem Describing the Process of Damping of Oscillations of the Rod Composed of Two Parts Having Different Density and Elasticity Values, in Case of Coincidence of the Time of the Wave Travel through Each Part of the Rod]. Trudy Matematicheskogo instituta im. V.A. Steklova [Works of V.A. Steklov Institute of Mathematics]. 2010, vol. 269, pp. 133—142.
  4. Kapustin Yu.M., Moiseev E.I. K probleme skhodimosti spektral'nykh razlozheniy dlya odnoy klassicheskoy zadachi so spektral'nym parametrom v granichnom uslovii [On the Problem of Convergence of Spectral Decompositions for One Classical Problem Having a Spectral Parameter in the Boundary Condition]. Differentsial'nye uravneniya [Differential Equations]. 2001, no. 2, pp. 1599—1604.
  5. Kostenko A.S., Malamud M.M. Ob odnomernom operatore Shredingera s vzaimodeystviem [On One-dimensional Schr?dinger Operator with Interaction]. Funktsional'nyy analiz i ego prilozheniya [Functional Analysis and Its Applications]. 2010, vol. 44, no. 2, pp. 87—91.
  6. Mirzoev K.A., Shkalikov A.A. Dvuchlennye differentsial'nye operatory s singulyarnymi koeffitsientami [Binominal Differential Operators with Singular Coefficients]. International Conference “Differential Equations and Related Topics.” Book of Abstracts. Moscow, 2011, pp. 274—275.
  7. Osilenker B.P. O ryadakh Fur'e po sobstvennym funktsiyam zadachi Shturma — Liuvillya s del'ta-potentsialom [On the Fourier Series in Respect of Eigenfunctions of the Sturm-Liouville Problem with Delta Potential] Obrazovanie, nauka i ekonomika v vuzakh. Integratsiya v mezhdunarodnoe obrazovatel'noe prostranstvo. Tezisy mezhdunar. konf. [Education, Science and Economy at Institutions of Higher Education. Integration into International Educational Space. Theses of the International Conference]. Erevan, 2011, pp. 69—70.
  8. Tikhonov A.N., Samarskiy A.A. Uravneniya matematicheskoy fiziki [Equations of Mathematical Physics]. Moscow, Nauka Publ., 1966, 724 p.
  9. Osilenker B.P. O nekotorykh ekstremal'nykh zadachakh dlya algebraicheskikh polinomov v nagruzhennykh prostranstvakh [On Particular Extremal Problems for Algebraic Polynomials in Loaded Spaces]. Izvestiya vuzov. Matematika [News of Institutions of Higher Education. Mathematics] 2010, no. 2, pp. 53—65.
  10. Fejzulllahu B.Xh. Asymptotics Properties and Fourier Expansions of Orthogonal Polynomials with a Non-discrete Gegenbauer-Sobolev Inner Product. J Approximation Theory. 2010, vol. 162, pp. 397—406.
  11. Koornwinder T.H. Orthogonal Polynomials with the Weight Function (1 – x )?(1 + x)? + M?(x + 1) + N?(x – 1). Canad. Math. Bull. 1984, vol. 27(2), pp. 205—214.
  12. Koekoek R. Differential Equations for Symmetric Generalized Ultraspherical Polynomials. Trans. Amer. Math. Soc. 1994, vol. 345, pp. 47—72.
  13. Koekoek J., Koekoek R. Differential Equations for Jacobi Polynomials. J. Comp. Appl. Math. 2000, vol. 126, pp. 1—31.
  14. Marcellan F., Osilenker B., Rocha I.A. On Fourier Series of Jacobi-Sobolev Orthogonal Polynomials. J. Ineq. Appl. 2002, vol. 7(5), pp. 673—699.
  15. Marcellan F., Osilenker B., Rocha I.A. On Fourier series of a discrete Jacobi-Sobolev Inner Product. J. Approximation Theory. 2002, vol. 117, pp. 1—22.
  16. Marcellan F., Rocha I.A., and Salto L. Relative Asymptotics and Fourier Series of Orthogonal Polynomials with a Discrete Sobolev Inner Product. J. Approximation Theory. 2003, vol. 121, pp. 336—356.
  17. Badkov V.M. Otsenki funktsii Lebega i ostatka ryada Fur'e-Yakobi [Estimates of the Lebesgue Function and the Remainder of the Fourier-Jacobi Series]. Sibirskiy matematicheskiy zhurnal [Siberian Mathematical Journal]. 1968, vol. 9, no. 8, pp. 1263—1283.
  18. Sege G. Ortogonal'nye mnogochleny [Oorthogonal Polynomials]. Moscow, GIFML Publ., 1962.

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COMPARISON OF FINDINGS OF THE FINITE ELEMENT ANALYSISWITH THE FINDINGS OF THE ASYMPTOTIC HOMOGENIZATIONMETHOD IN RESPECT OF THE PLATE IN ELASTOPLASTIC BENDING

  • Savenkova Margarita Ivanovna - Lomonosov Moscow State University (MGU) postgraduate student, Department of Composite Mechanics, Faculty of Mechanics and Mathematics, Lomonosov Moscow State University (MGU), ; Leninskie Gory, Moscow, 119991, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sheshenin Sergey Vladimirovich - Lomonosov Moscow State University (MGU) Doctor of Physical and Mathematical Sciences, Professor, Department of Composite Mechanics, Faculty of Mechanics and Mathematics, Lomonosov Moscow State University (MGU), ; Leninskie Gory, Moscow, 119991, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zakalyukina Irina Mikhailovna - Moscow State University of Civil Engineering (MGSU) Candidate of Physical and Mathematical Sciences, Associate Professor, Department of Theoretical Mechanics and Aerodynamics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 42-50

The authors present numerical results of the asymptotic homogenization method for elastoplastic bending of the plate. The plate is supposed to be laminated and exposed to the transversal load. Stresses and displacements in the cylindrical bending problem are compared with those calculated using the 2D finite element method. The new trend in the mathematical simulation of structures, made of composite materials, contemplates accurate consideration of their nonlinear properties (for instance, plasticity or damage) on the micro-structural level of materials. The homogenization method provides for the coupling between the microstructural level and the level of the entire structure. The authors have developed a numerical implementation of this coupling. It represents a combination of the homogenization method and linearization with account for the loading parameter. The approach was implemented as a parallel algorithm and applied to the plastic bending simulation of the FGM plate. The parallel algorithm is based on the overlapping subdomain decomposition method and the Euler explicit and implicit integration methods. MPI was used for software development purposes.In this paper, the authors provide a concise description of the proposed method applied to the 3D boundary-value problem. The authors compare numerical solutions obtained through the application of the homogenization approach and the finite element method. Two types of laminated plates are taken as an example. Three-layered plate was exposed to uniformly distributed transversal loading. The second five-layered plate, that was a lot thinner than the first one, was exposed to piecewise constant transversal loading. All layers of both plates are homogenous; they are supposed to be elastic or bilinearly plastic. It was discovered that the asymptotic homogenization technique provides a more accurate solution for the five-layered plate than for the three-layered one. Edge effects near the edges of the plates are smaller for the thin five-layered plate if compared with the thick three-layered plate. The edge effect appears due to the large value of the plate height-to-length ratio. Nevertheless, the first order asymptotic homogenized method provides sufficient accuracy in both cases.

DOI: 10.22227/1997-0935.2013.8.42-50

References
  1. Savenkova M.I., Sheshenin S.V., Zakalyukina I.M. Primenenie metoda osredneniya v zadache uprugoplasticheskogo izgiba plastiny [Application of Homogenization Method to Elastoplastic Bending of a Plate]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 9, pp. 156—164.
  2. Sheshenin S.V., Savenkova M.I. Osrednenie nelineynykh zadach v mekhanike kompozitov [Averaging Method for Nonlinear Problems in Composites Mechanics]. Vestnik Moskovskogo universiteta. Matematika. Mekhanika [Proceedings of Moscow University. Mathematics. Mechanics]. 2012, no. 5, pp. 58—61.
  3. Barret R. Templates for the Solution of Linear Systems: Building Blocks for Iterative Methods. Philadelphia, SIAM, 1994.
  4. Sadovnichy V., Tikhonravov A., Voevodin V.l., Opanasenko V. "Lomonosov": Super-computing at Moscow State University. In Contemporary High Performance Computing: from Petascale toward Exascale. Chapman & Hall/CRC Computational Science. 2013, Boca Raton, USA, CRC Press, pp. 283—307.
  5. Fish J., Shek K., Pandheeradi M., Shephard M.S. Computational Plasticity for Composite Structures Based on Mathematical Homogenization: Theory and Practice. Comput. Methods Appl. Mech. Engrg. 1997, no. 148, pp. 53—73.
  6. Ghosh S., Lee K., Moorthy S. Two Scale Analysis of Heterogeneous Elastic-plastic Materials with Asymptotic Homogenization and Voronoi Cell Finite Element Model. Comput. Methods Appl. Mech. Enrgr. 1996, no. 132, pp. 63—116.
  7. Gorbachev V.I., Pobedrya B.E. The Effective Characteristics of Inhomogeneous Media. J. Appl. Math. Mech. 1997, vol. 61, no. 1, pp. 145—151.
  8. Bakhvalov N.S. Osrednenie differentsial'nykh uravneniy s chastnymi proizvodnymi s bystro ostsilliruyushchimi koeffitsientami [Homogenization of Differential Equations Having Partial Derivatives with Rapidly Ocillating Coefficients]. Doklady AN SSSR [Reports of the Academy of Sciences of the USSR]. 1975, vol. 221, no. 3, pp. 516—519.
  9. Pobedrya B.E., Gorbachev V.I. Kontsentratsiya napryazheniy i deformatsiy v kompozitakh [Concentration of Stresses and Strains in Composites]. Mekhanika kompozitsionnykh materialov [Mechanics of Composite Materials]. 1984, no. 2, pp. 207—214.
  10. Kalamkarov A.L., Andrianov I.V., Danishevs'kyy V.V. Asymptotic Homogenization of Composite Materials and Structures. Applied Mechanics Reviews, 2009, v. 63, no. 3, pp. 1—20.
  11. Sheshenin S.V. Asimptoticheskiy analiz periodicheskikh v plane plastin [Asymptotical Analysis of In-plane Periodical Plates]. Izvestiya RAN. Mekhanika tverdogo tela [RAS News. Mechanics of Solids.], 2006, no. 6, pp. 71—79.
  12. Sheshenin S.V. Primenenie metoda osredneniya k plastinam, periodicheskim v plane [Application of the Homogenization Method for the In-Plane Periodical Plates]. Vestnik Moskovskogo universiteta. Matematika. Mekhanika [Proceedings of Moscow University. Mathematics. Mechanics]. 2006, no. 1, pp. 47—51.

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SOLUTIONTO THE HOMOGENEOUS PROBLEM OF THE THEORYOF ELASTICITY IN THE AREA OF THE CUT BOUNDARYIN THE PLANE DOMAIN

  • Frishter Lyudmila Yur'evna - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Higher Mathematic, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Vatanskiy Vladimir Aleksandrovich - Moscow State University of Civil Engineering (MGSU) student, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 51-58

The authors present their solution to the homogeneous boundary value problem of the theory of elasticity in the area of the cut boundary in the plane domain. The authors have derived the type of the stress-strain state in the small area of the peak of the cut area. The authors offer an asymptotic solution to the elastic homogeneous problem depending on intensity ratios as unknown constant values. The problem of research into the ratios of intensity is also relevant for the research into the stress-strain state of structures characterized by geometrical non-linearity of boundaries. In the article, the authors consider a plain problem of the theory of elasticity for a domain having an angular point (the case of concentrated forces in the vertex of an angle are not considered by the authors in this article). The authors consider a special case where the vertex angle is equal to 2π. The type of the stress-strain state derived for this case study coincides with the type of the stress-strain state considered in fracture mechanics. Identification of intensity ratios represents an independent problem of the stress-strain state in the area of the domain of the cut peak.

DOI: 10.22227/1997-0935.2013.8.51-58

References
  1. Parton V.Z., Perlin P.I. Metody matematicheskoy teorii uprugosti [Methods of Mathematical Theory of Elasticity]. Moscow, Nauka Publ., 1981, 688 p.
  2. Kondrat'ev V.A. Kraevye zadachi dlya ellipticheskikh uravneniy v oblastyakh s konicheskimi ili uglovymi tochkami [Boundary Problems for Elliptical Equations in Domains Having Conical or Angular Points]. Trudy Moskovskogo matematicheskogo obshchestva [Works of Moscow Mathematical Society]. Moscow, MGU Publ., 1967, vol. 16, pp. 209—292.
  3. Williams M.L. Stress Singularities Resulting from Various Boundary Conditions in Angular Corners of Plates in Extension. J. Appl. Mech. 1952, vol. 19, no. 4, p. 526.
  4. Aksentyan O.K. Osobennosti napryazhenno-deformirovannogo sostoyaniya plity v okrestnosti rebra [Features of the Stress-strain State of a Slab in the Proximity to the Edge]. Prikladnaya mekhanika i matematika [Applied Mechanics and Mathematics]. 1967, vol. 31, no. 1, pp. 178—186.
  5. Denisyuk I.T. Odna zadacha sopryazheniya analiticheskikh funktsiy v affinno-preobrazovannykh oblastyakh s kusochno-gladkimi granitsami [One Problem of Integration of Analytical Functions in Affine-transformed Domains Having Piecewise Smooth Boundaries]. Izvestiya vuzov. Matematika. [News of Institutions of Higher Education. Mathematics.] 2000, no. 6, pp. 70—74.
  6. Kuliev V.D. Singulyarnye kraevye zadachi [Singular Boundary Problems]. Moscow, Nauka Publ., 2005, 719 p.
  7. Frishter L.Yu. Analiz metodov issledovaniya lokal'nogo napryazhenno-deformirovannogo sostoyaniya konstruktsiy v zonakh kontsentratsii napryazheniy [Analysis of Methods of Research into the Stress-strain State of Structures in Areas of Concentrated Stresses]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2008, no. 3, pp. 38—44.
  8. Frishter L.Yu. Issledovanie NDS v okrestnosti neregulyarnoy tochki granitsy ploskoy oblasti pri deystvii vynuzhdennykh deformatsiy metodom fotouprugosti [Research into the Stress-strain State in Proximity to the Irregular Point of the Boundary of the Plane Domain Exposed to Induced Deformations Using Method of Photo-elasticity]. International Journal for Computational Civil and Structural Engineering. 2007, vol. 3, no. 2, pp. 101—106.
  9. Timoshenko P.S., Gudier Dzh. Teoriya uprugosti [Theory of Elasticity]. Moscow, Nauka Publ., 1975, 576 p.
  10. Cherepanov G.P. Mekhanika khrupkogo razrusheniya [Brittle Fracture Mechanics]. Moscow, Nauka Publ., 1974, 640 p.
  11. Vardanyan G.S., Mozgaleva M.L., Savost'yanov V.N., Frishter L.Yu. O sobstvennykh znacheniyakh v reshenii zadach dlya oblastey, soderzhashchikh neregulyarnye tochki [On Eigenvalues in Solutions to Problems of Domains Having Irregular Points]. Izvestiya vuzov. Stroitel'stvo [News of Institutions of Higher Education. Construction] 2003, no. 10, pp. 28—31.

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BEDDINGS AND FOUNDATIONS, SUBTERRANEAN STRUCTURES. SOIL MECHANICS

CASESTUDY OF STABILIZATION OF STRUCTURAL-UNSTABLE SOILSUSING GROUTING

  • Golovanov Aleksandr Mikhailovich - Rostov Research and Development Institute for Industrial Engineering Candidate of Technical Sciences, Honoured Inventor of the Russian Soviet Federal Socialist Republic, Director, Department of Foundation Soils and Foundations, Rostov Research and Development Institute for Industrial Engineering, 2/2 pr. Voroshilovskiy, Rostov-on-Don, 344006, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pashkov Valeriy Ivanovich - Geotekhnika Group of Companies Candidate of Technical Sciences, Director, Geotekhnika Group of Companies, Building 55, 51/a Vostochnaya st., 344022, Rostov-on-Don, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Revo Galina Algirdasovna - Geotekhnika Group of Companies Executive Director, Geotekhnika Group of Companies, Building 55, 51/a Vostochnaya st., 344022, Rostov-on-Don, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pashkov Deputy Director - Geotekhnika Group of Companies , Geotekhnika Group of Companies, Building 55, 51/a Vostochnaya st., 344022, Rostov-on-Don, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Nerchinskiy Oleg Vladimirovich - Geotekhnika Group of Companies Leading Engineer, Geotekhnika Group of Companies, Building 55, 51/a Vostochnaya st., 344022, Rostov-on-Don, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Turenko Chief Engineer - Geotekhnika Group of Companies , Geotekhnika Group of Companies, Building 55, 51/a Vostochnaya st., 344022, Rostov-on-Don, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 59-67

More than 20 years ago, Rostov-based Promstroyniiproekt Institute (Research and Development Institute for Industrial Engineering), backed by Geotechnika group of companies and other organizations, commenced using cement grouting to stabilize soil as part of foundation soils of buildings. It has turned out that consolidation of water saturated by clay accelerates grouting and assures higher strength than the silicification method. The article describes a new method of grouting and a case study of grouting stabilization of the foundation soil of a five-storey residential house, made by subsiding soils and subjacent fluid-plastic clay loams.The work was complicated by the fact that clay was displaced by the cement-sand mortar injected at the pressure insufficient for formation of discontinuous cavities. In these circumstances, the team of researchers developed and implemented an integrated solution to avoid clay clustering under the influence of the injected grout.The authors consider problems arising in the course of operation of buildings in the above geotechnical environment and describe the sequence of grouting operations. The article includes the work performance pattern and patterns of building control.

DOI: 10.22227/1997-0935.2013.8.59-67

References
  1. Balkema A.A., Grouting and Deep Mixing. Proceedings of the Second International Conference on Ground Improvement Geosystems (Tokyo). Rotterdam, 1996, 795 p.
  2. Mitchell J.K., Katti R.K. Soil Improvement – State-of-the-Art (Preliminary). Proceedings of the 10th Conf. on Soil Mech. and Found. Stockholm, Engng, 1981, vol. 4, pp. 261—317.
  3. Wintercorn H.F., Pamukcu S., Fang H.-Y., editor. Soil Stabilization and Grouting. Foundation Engineering Handbook. Van Nostrend Reindhold, 1991, p. 317—378.
  4. Askalonov V. V Silikatizatsiya lessovykh gruntov [Silicification of Loessial Soils]. Moscow, Gosstroyizdat Publ., 1959.
  5. Golovanov A.M., Pashkov V.I., Revo G.A. Opyt zakrepleniya prosadochnykh i nasypnykh gruntov osnovaniy fundamentov zdaniy i sooruzheniy tsementatsiey [Case Study of Soil Silicification of Subsiding and Filled Foundation Soils of Buildings and Structures Using Grouting]. Sbornik nauchnykh trudov [Collection of Research Works]. Rostov-on-Don, OAO Institut “Rostovskiy PromStroyNiiProekt” Publ., 2004., pp. 68—71.
  6. Rzhanitsin B.A. Nekotorye itogi rabot v oblasti khimicheskogo zakrepleniya gruntov [Particular Findings of Works in the Field of Chemical Stabilization of Soils]. Zakreplenie i uplotnenie gruntov v stroitel'stve [Stabilization and Compaction of Soils in the Construction Industry]. Materialy VIII vsesoyuznogo soveshchaniya [Materials of the 8th All-Union Conference]. Kiev, 1974, pp. 109—111.
  7. Sokolovich V.E., Chalikova E.S., Veber I.B. Povyshenie effektivnosti silikatizatsii lessovykh gruntov [Improvement of Efficiency of Silicification of Loessial Soils]. Materialy V soveshchaniya po zakrepleniyu i uplotneniyu gruntov [Materials of the 5th Conference on Soil Stabilization and Compaction]. Novosibirsk, 1966, pp. 330—333.
  8. Sergeev V.I., Shimko T.G., Kuleshova M.L. Stepanova N.U. Razvitie in"ektsionnogo zakrepleniya kak odnogo iz osnovnykh metodov tekhnicheskoy melioratsii gruntov [Development of Injection Grouting as a Main Method of Engineering Amelioration of Soils]. Inzhenernaya geologiya [Engineering Geology]. 2012, no. 4, pp. 6—13.
  9. Golovanov A.M., Pashkov V.I., Sergeyev V.I. Sposob zakrepleniya grunta: patent na izobretenie ¹ 2103441 [Method of Soil Stabilization. Patent for Invention no. 2103441]. Application filed: June 07, 1998; published on January 27, 1998. Byulleten' izobreteniy i otkrytiy [Bulletin of Inventions and Discoveries]. 1998, no. 3.
  10. Isaev B.N., Badeev S.Yu., Tsapkova N.N. Sposob podgotovki osnovaniya: patent na izobretenie ¹ 2122068 [Method of Preparation of Foundation Soil. Patent for Invention no. 2122068]. Application filed: June 28, 1995; published on November 20, 1998. Byulleten' izobreteniy i otkrytiy [Bulletin of Inventions and Discoveries]. 1998, no. 32.

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CONSTRUCTION OF MOORINGS ON LOOSE SOILS HAVING ARTIFICIALLYIMPROVED PHYSICAL-MECHANICAL CHARACTERISTICS

  • Korchagin Evgeniy Aleksandrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Professor, Department of Hydraulic Engineering Works and Underground Construction, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sakhnenko Margarita Aleksandrovna - Moscow State Academy of Water Transport (MGAVT) Candidate of Technical Sciences, Associate Professor, Moscow State Academy of Water Transport (MGAVT), Building 1, 2 Novodanilovskaya nab., Moscow, 117105, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Stepanyan Georgiy Arutyunovich - Moscow State Academy of Water Transport (MGAVT) postgraduate student, Department of Waterways and Moorings, Moscow State Academy of Water Transport (MGAVT), Building 1, 2 Novodanilovskaya nab., Moscow, 117105, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 68-77

This paper covers the technology of stabilization of loose soils through the employment of silt-cement piles, or the so-called deep soil stabilization technology. It is applicable to various types of loose soils, including clay, sapropel, silt and peat. However, geotechnical and chemical properties of soils surely affect the stabilization efficiency and the choice for the stabilization material.The authors provide a brief overview of the soil stabilization technology employing silt-cement piles and based on the principle of dry mixing of water-saturated natural soil with cement. Thus, dry powder enters into the chemical reaction with the stream of water to reduce the content of water in the soil. The research into the bearing capacity of siltcement piles and the stabilized territory of moorings was performed in the Temryuk port.The co-objective of the research was to identify the operating conditions of cargo moorings in the Temryuk port constructed on loose soils. All conclusions were based on the field data, seismometric and laboratory tests. The analysis of and research into the operating conditions of moorings demonstrate the efficiency of the long-term operation of berthing facilities constructed on the soils stabilized by silt-cement piles. This methodology can be used to stabilize port territories, road beds of railways and highways constructed on loose soils.The authors also elaborate on the potential upgrade of categories of cargo moorings constructed on loose soils and stabilized by silt-cement piles. Calculation results and researches demonstrate that it is quite difficult to significantly upgrade loading categories in respect of open warehouse spaces, as silt-cement piles of the pre-set diameter cannot provide for the bearing capacity corresponding to the first category loading. The solution may consist in the change of the stabilization design with account for the thixotropic properties of clay soils. Structural solutions may consist in the selection of the pile foot designs that may stabilize loose clay soils, on the one hand, and meet the loading requirements, on the other hand.

DOI: 10.22227/1997-0935.2013.8.68-77

References
  1. Korchagin E.A. Ispol'zovanie mestnykh usloviy pri stroitel'stve portovykh sooruzheniy na slabykh gruntakh [Taking Advantage of the Local Environment in the Process of Construction of Moorings on Loose Soils]. Materialy nauchno-prakticheskoy konferentsii [Works of Science and Practical Conference]. Moscow, MGAVT Publ., Al'tair Publ., 2010, pp. 26—28.
  2. Soil Classification System and Method of the Result of Classification. Journal of Japanese Society of Soil Mechanics and Foundation. 1973, vol. 21, no. 5, pp. 21—25.
  3. Marchenko A.S. Morskie portovye sooruzheniya na slabykh gruntakh [Sea Moorings on Loose Soils]. Moscow, Transport Publ., 1976, 312 p.
  4. EuroSoilStab. CT 97-0351 Project No.: BE 96-3177. Design Guide Soft Soil Stabilization. Development of Design and Construction Methods to Stabilize Soft Organic Soils. London, Ministry of public works and water management, 2000, 94 p.
  5. Korchagin E.A. Opyt proektirovaniya, stroitel'stva i ekspluatatsii prichala v slozhnykh usloviyakh [Experience of Design, Construction and Operation of Mooring in the Severe Environment]. Moscow, Rechnoy transport XXI vek [River transport in the 21st century]. 2008, no. 1, pp. 63—64.
  6. Lunne T., Robertson P.K., Powell J.J.M. CPT in Technical Works. London, Blekis, 1997, 110 p.
  7. Nauchno-tekhnicheskiy otchet “Razrabotka metodiki opredeleniya seysmicheskogo davleniya grunta na gruzovoy prichal v portu Temryuk” [Scientific and Technical Report on Development of Methodology for Identification of Seismic Pressure of Soil on the Cargo Mooring in the Temryuk Port]. Moscow, Tovarishchestvo Kafedry Mosty MIITA Publ., 1995, 180 p.
  8. Nauchno-tekhnicheskiy otchet po rabote «Issledovanie struktury ilotsementnykh svay na gruzovom prichale Kubanskogo Rechnogo Parokhodstva v p. Temryuk [Scientific and Technical Report on Research into the Structure of Silt-cement Piles in the Cargo Mooring, Kuban River Shipping Company, Temryuk]. Moscow, Assotsiatsiya MOL-INK Publ., Inzhmol Publ., 1996, 86 p.
  9. Stepanyan G.A. Issledovanie setki ilotsementnykh svay dlya prichalov 1 i 2 kategorii [Research into the Network of Silt-cement Piles for 1st and 2nd Category Moorings]. Materialy nauchno-prakticheskoy konferentsii MGAVT [Works of MGAVT Science and Practical Conference]. Moscow, MGAVT Publ., 2012, pp. 17—19.
  10. Kostyukov V.D., Stepanyan G.A. K voprosu o povyshenii nesushchey sposobnosti territorii prichalov na slabykh osnovaniyakh [On the Issue of Improvement of the Bearing Capacity of the Territory of Moorings on Loose Soils]. Rechnoy transport XXI vek [River transport in the 21st century]. 2012, no. 1, pp. 70—72.

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ANALYSIS OF BEHAVIOR OF POLYMER SCREENS OF HIGH EARTHFILL COFFERDAMSON THE BASIS OF THE STRESS-STRAIN STATE CALCULATIONS

  • Sainov Mikhail Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulic Engineering, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Khokhlov Sergey Viktorovich - TempStroySistema Head of Dam and Bridges Department, TempStroySistema, 5 Universitetskiy prospect, Moscow, 119296, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 78-88

The article deals with the results of the numerical analysis of the stress-strain state of a 50 m high earthfill cofferdam. A geocomposite membrane (geo-membrane and geotextile layers) in its upper part (20 m) serves as a seepage control element. The grout curtain is installed in the lower part of the cofferdam and in the foundation. The cofferdam design implements the idea of using riprap to reduce the weight of the geocomposite membrane.The analysis proves that the high weight of the membrane considerably worsens the stress state of both the membrane and the whole dam. First of all, the load causes additional deflection of the membrane and consequently increases tensile stresses inside it. Second, due to the low value of the friction coefficient (approximately 0.3 0.4) in the point of contact between the geocomposite membrane and soil the dam upstream shell may slide down along the geocomposite membrane. Additional dam displacements may cause considerable tensile forces in the geomembrane. Their maximum values are comparable to the strength of the polymer material used for the manufacturing of the membrane. Any rupture of the membrane and geotextile layers may be expected. The analysis proves that it is necessary to get compensators in the polymer membrane allowing for the extension of the membrane absent of any tensile forces.The analysis proves that the geocomposite membrane does not affect the stressstrain state of the earth fill due to its small thickness. Non-linear effects of “earth – geomembrane” contacts are to be taken into account, because tensile forces appear inside geo-membranes due to the presence of friction forces.

DOI: 10.22227/1997-0935.2013.8.78-88

References
  1. Popchenko S.N., Glebov V.D., Igonin Kh.A. Opyt primeneniya polimernykh materialov v gidrotekhnicheskom stroitel'stve [Experience of Application of Polymeric Materials in Hydraulic Engineering]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 1973, no. 12, pp. 9—13.
  2. Radchenko V.P., Semenkov V.M. Geomembrany v plotinakh iz gruntovykh materialov [Geomembranes in Dams Made of Soil Materials]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 1993, no. 10.
  3. Brusse A.G., Glebov V.D., Detkov B.V. Polietilenovyy ekran peremychki Ust'-Khantayskoy GES [Polyethylene Screen of the Cofferdam of Ust-Khantaiskaya HPP]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 1971, no. 11, pp. 4—5.
  4. Gol'din A.L., Rasskazov L.N. Proektirovanie gruntovykh plotin [Design of Earthfill Dams]. Moscow, ASV Publ., 2001, 384 p.
  5. Zinevich N.I., Lysenko V.P., Nikitenkov A.F. Tsentral'naya plenochnaya diafragma plotiny Atbashinskoy GES [Central Membrane Diaphragm of the Dam of Atbashi HPP]. Energeticheskoe stroitel'stvo [Construction of Power Generation Facilities]. 1974, no. 3, pp. 59—62.
  6. Glebov V.D., Lysenko V.P. Konstruirovanie plenochnykh protivofil'tratsionnykh elementov v plotinakh i peremychkakh [Design of Membrane Waterstop Elements of Dams and Cofferdams] Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 1973, no. 5, pp. 33—35.
  7. Ayrapetyan R.A. Proektirovanie kamenno-zemlyanykh i kamennonabrosnykh plotin [Design of Masonry-earthfill and Masonry-riprap Dams]. Moscow, Energiya Publ., 1975.
  8. Rekomendatsii po proektirovaniyu i stroitel'stvu protivofil'tratsionnykh ustroystv iz polimernykh rulonnykh materialov [Guidelines for Design and Construction of Waterstop Devices Made of Polymeric Roll Materials]. St.Petersburg, OAO VNIIG im. B.E.Vedeneeva Publ., SPb. NII AKKh im. K.D. Pamfilova Publ., 2001.
  9. SN 551—82. Instruktsiya po proektirovaniyu i stroitel'stvu protivofil'tratsionnykh ustroystv iz polietilenovoy plenki dlya iskusstvennykh vodoemov [Construction Rule 551—82. Guidelines for Design and Construction of Waterstop Devices Made of the Polyethylene Film for Artificial Reservoirs]. OOO Gidrokor Publ., 2001.
  10. Scuero A.M., Vaschetti G.L. Repair of CFRDs with Synthetic Geomembranes in Extremely Cold Climates. Proceedings, Hydro 2005 – Policy into Practice. Villach, 2005.
  11. Sembenelli P., Rodriquez E.A. Geomembranes for Earth and Earth-Rock Dams: State-of-the-Art Report. Proc. Geosynthetics Applications, Design and Construction. M. B. de Groot et al., Eds. A. A. Balkema, 1996, pp. 877—888.
  12. Korchevskiy V.F., Obopol' A.Yu. O proektirovanii i stroitel'stve Kambaratinskikh gidroelektrostantsiy na r. Naryne v Kirgizskoy Respublike [On Design and Construction of Kambarata Hydraulic Power Plants on the Narin River in the Kyrgyz Republic]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 2012, no. 2, pp. 2—12.
  13. Pietrangeli G., Pietrangeli A., Scuero A., Vaschetti G., Wilkes J. Gibe III: Zigzag Geomembrane Core for Rockfill Cofferdam in Ethiopia. 31st Annual USSD Conference. San Diego, California, April 11-15, 2011, pp. 985—994.

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ENGINEERING RESEARCHAND EXAMINATION OF BUILDINGS.SPECIAL-PURPOSE CONSTRUCTION

SYSTEMATIZATION OF KEY PARAMETERS FOR PROGNOSTICATION OF RESIDUAL SERVICE LIFEOF BUILDING STRUCTURES

  • Shmelev Gennadiy Dmitrievich - Voronezh State University of Architecture and Civil Engineering (Voronezh GASU) Candidate of Technical Sciences, Associate Professor, Department of Urban Development and Municipal Engineering, Voronezh State University of Architecture and Civil Engineering (Voronezh GASU), 84, 20-letiya Oktyabrya str., Voronezh, 394006, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 89-96

The author considers the key parameters used to monitor the condition of structures in the course of their long-term use. In the process of analyzing the expediency of employment of the parametric method of prognostication, the author identified the main parameters of structures made of different materials to be monitored for the above purpose. The research team led by the author systematized the key parameters of masonry, reinforced masonry, concrete, reinforced concrete and structural steel. Thus, the key parameters of reinforced concrete structures include displacement of supports, size reduction of the cross-section of a structural element, loading value, concrete strength in compression, tensile strength, cross sectional area of reinforcement, bearing capacity (for all sections), crack opening width (normal and oblique), deflections, and adhesion between concrete and reinforcement.Prognostication requires identification of the limit values of the above-mentioned parameters. Most of them are specified in the effective regulatory documents; some may be found in the reference and research literature. For example, any increase of corrosion in excess of 15% of the cross sectional area will not cause the failure of the structure. It is recommended to use the method of intervals as a most efficient one in the context of limited information. It contemplates development of interval boundaries of the most probable values of changing parameters. A general pattern for the prognostication of the remaining service life of building structures using the key parameters (the parametric method) may be used to identify initial values of these parameters and limits of changes in their values.

DOI: 10.22227/1997-0935.2013.8.89-96

References
  1. GOST R 53778—2010. Zdaniya i sooruzheniya. Pravila obsledovaniya i monitoringa tekhnicheskogo sostoyaniya [National State Standard 53778—2010. Buildings and Structures. Procesures for Inspection and Monitoring of Their Technical Condition]. Moscow, Stroyizdatinform Publ., 2010, 65 p.
  2. SP 13-102—2003. Pravila obsledovaniya nesushchikh stroitel'nykh konstruktsiy zdaniy i sooruzheniy [Construction Regulations 13-102—2003. Procedures for Inspection of Bearing Structural Elements of Buildings and Structures]. Moscow, Gosstroy Rossii GUP TsPP Publ., 2003, 32 p.
  3. Schueremans L., Van Gemert D. Service Life Prediction of Reinforced Concrete Structures, Based on In-service Chloride Penetration Profiles. Proceedings of the Eighth International Conference on Durability of Building Materials and Components. 1999, vol. 1, pp. 84—93.
  4. Dotreppe J.-C. Degradation Mechanism and Service Life on Concrete Slabs on Composite Bridges. Proceedings of the Eighth International Conference on Durability of Building Materials and Components. 1999, vol. 1, pp. 16—27.
  5. Faber M.H., Kubler O., Fontana M., Knobloch M. Failure Consequences and Reliability Acceptance. Hochschulverlag AG on der ETH. Zurich, 2004, 43 p.
  6. Sarja A. Integrated Life Cycle Design of Structures. Tailor and Francis e-Library, 2005, 130 p.
  7. Kumar M.P., Burrows R.W. Building Durable Structures in the 21st century. The Indian Concrete Journal. 2001, no. 6, pp. 437—443.
  8. Kaliske M., Schmidt J., Schaur. A New Design Proposal for Timber/Concrete-composite Beams. Improvement of Buildings' Structural Quality by New Technologies. London, Tailor and Francis Group, 2005, pp. 21—34.
  9. Shmelev G.D., Ishkov A.N. Prognozirovanie ostatochnogo resursa izgibaemykh zhelezobetonnykh konstruktsiy ekspluatiruemykh v neagressivnykh sredakh [Forecasting the Residual Service Life of Inflexible Reinforced Concrete Structures in the Non-aggressive Environment]. Rostov-on-Don, RGSU Publ., 2007, 219 p.
  10. Mal'ganov A.I., Plevkov V.S., Polishchuk A.I. Vosstanovlenie i usilenie stroitel'nykh konstruktsiy avariynykh i rekonstruiruemykh zdaniy. Atlas skhem i chertezhey [Reconstruction and Reinforcement of Building Structures of Dangerous and Reconstructed Buildings. Atlas of Patterns and Drawings]. Tomsk, Tomskiy mezhotraslevoy TsNT publ., 1990, 315 p.

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RESEARCH OF BUILDING MATERIALS

FINE CONCRETE FOR HYDRAULIC ENGINEERING MODIFIEDBY A MULTI-COMPONENT ADDITIVE

  • Aleksashin Sergey Vladimirovich - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Technology of Binders and Concretes, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bulgakov Boris Igorevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department of the Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 97-103

This article covers the design of an advanced multi-component additive and the study of its influence produced on the properties of fine-grained concrete. The authors also provide data on the earlier studies of the effect produced by domestic superplasticizers on the plasticity of fine-grained concrete mixtures and the curing behaviour of plasticized fine concretes. Russian-made superplasticizer Khimkom F1 was used to retain the plasticity of the fine concrete under consideration. Khimkom F1 produces a better effect on concrete curing than Polyplast SP-1, Cemactive SU-1, and Linomix SP 180-2. Superplasticizer Khimkom F1, as opposed to plasticizers based on lingo-sulfonate or naphthalene, for example S-3, has no bad odour; it is non-corrosive if applied to steel reinforcement inside concrete. The research has proved that the optimal amount of Khimkom F1 is 1.2% of the total amount of the binder.Metakaolin fume was used to improve the microstructure of the concrete, including its strength, waterand frost-resistance. Improvement of the above properties was proved in the course of the experiment. Its optimal content equals to 15% of the total amount of the binder. The study of the two domestically made water repellents (Sofexil40 and Sofexil 60-80) was conducted to identify and to compare their water and frost resistance. Experimental findings have proven that Sofexil 40 produces higher influence on the properties of the fine concrete, used for hydraulic engineering purposes, than Sofexil 60-80. The optimal content of the water repellent is 0.2% of the binder content. Sofexil 40 must be dissolved in the water in advance. Finally, the authors provide their experimental findings in terms of the optimal composition of the fine hydraulic concrete having pre-set properties.

DOI: 10.22227/1997-0935.2013.8.97-103

References
  1. Aleksashin S.V., Bulgakov B.I. Poluchenie melkozernistykh betonov s vysokimi ekspluatatsionnymi pokazatelyami [Production of Fine-grained High Performance Concrete]. Sbornik nauchnykh trudov Instituta stroitel'stva i arkhitektury [Collection of Research Papers of the Institute of Construction and Architecture]. Moscow, KYuG Publ., 2012, pp. 12—13.
  2. Lukuttsova N.P., Pykin A.A., Chudakova O.A. Modifitsirovanie melkozernistogo betona mikro- i nanorazmernymi chastitsami shungita i dioksida titana [Modification of Fine-grained Concrete by Micro Particles of Schungite and Titanium Dioxide]. Vestnik BGTU im. V.G. Shukhova [News Bulletin of Belgorod Shukhov State Technical University]. 2010, no. 2, pp. 67—70
  3. Falikman V.R. New High Performance Polycarboxilate Superplasticizers Based on Derivative Copolymers of Maleinic Acid. 6th International Congress “GLOBAL CONSTRUCTION” Advances in Admixture Technology. Dundee, 2005, pp. 41—46.
  4. Lukuttsova N.P. Nanomodifitsiruyushchie dobavki v beton [Nano-modifying Additives for Concrete]. Stroitel'nye materialy [Construction Materials]. 2010, no. 9, pp. 101—104.
  5. Bazhenov Yu.M., Lukuttsova N.P., Matveeva E.G. Issledovanie nanomodifitsirovannogo melkozernistogo betona [Research into Nano-modified Fine Concrete]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, vol. 2, no. 4, pp. 415—418.
  6. Shah S.P., Ahmad S.H. High Performance Concrete: Properties and Applications. McGraw-Hill, Inc., 1994, 403 p.
  7. Ramachandran V.S. Dobavki v beton: spravochnoe posobie [Additives for Concrete: Reference Book]. Moscow, Stroyizdat Publ., 1988, 291 p.
  8. Commission 42-CEA. Properties Set Concrete at Early Ages. State-of-the-art-report. Materiaux et Constructions. 1981, vol. 14, no. 4, p. 15.
  9. Fennis S.A.A.M., Walraven J.C. Design of Ecological Concrete by Particle Packing Optimization. Delft, Delft University of Technology, 2010, pp. 115—144.
  10. Batrakov V.G. Modifitsirovannye betony. Teoriya i praktika [Modified Concretes. Theory and Practice.] Moscow, Tehnoproekt Publ., 1998, 560 p.

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SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

PARTICULAR PROBLEMSOF RADIATION CONTROL IN THE COURSE OF CONSTRUCTIONOPERATIONS

  • Kulieva Gul'nara Aleksandrovna - Peoples’ Friendship University of Russia (RUDN) Candidate of Biological Sciences, Associate Professor, Associate Professor, Department of Forensic Ecology, Faculty of Ecology, Peoples’ Friendship University of Russia (RUDN), 8/5 Podolskoe Shosse, Moscow, 113093, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Glebov Viktor Vasil`evich - Peoples’ Friendship University of Russia (RUDN) Candidate of Psychological Sciences, doctoral student, Associate Professor, Associate Professor, Department of Human Ecology, Faculty of Ecology, Peoples’ Friendship University of Russia (RUDN), 8/5 Podolskoe Shosse, Moscow, 113093, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 104-110

The authors consider several problems of radiation control in the process of construction operations. The authors describe sampling of radon, a radioactive gas which can be often found in the environment, and therefore, it may be the reason for cancer diseases. Residential houses represent the main source of ionizing radiation, given the fact that the time spent at home accounts for about 60% of the overall radiation exposure. Safe radon content values for residential and office buildings are provided in the article. Maximal acceptable doses of radiation, emitted by natural sources, in respect of office personnel (below 5 mSv per year) and residents (below 1 mSv per year) are identified. Maximal acceptable doses are regulated by the Russian Standard of Radiation Safety.Difficulties accompanying radiation control in the course of construction operations are described in the article. Field measurements of radon emissions from the soil surface have been taken in Russia for over 10 years; no other country has taken any measurements of this kind.The highest efficiency of radon protection is achieved at the stage of design of buildings. If regulatory requirements are honoured at the design stage, radiation protection turns a lot cheaper than elimination of high concentrations of radon inside existing buildings.

DOI: 10.22227/1997-0935.2013.8.104-110

References
  1. Utkin V.I. Gazovoe dykhanie zemli [Gas-filled Breath of the Earth]. Sorosovskiy obrazovatel'nyy zhurnal [Soros’ Educational Journal]. 1997, vol. 1, no. 1, pp. 57—64.
  2. Tsapalov A.A., Kuvshinnikov S.I. Zavisimost' ob"emnoy aktivnosti radona v pomeshcheniyakh ot raznosti vnutrenney i naruzhnoy temperatur vozdukha [Dependence of On-premises Radon Volume Activity on Difference between the Inside and the Outside Air Temperature]. Apparatura i novosti radiatsionnykh izmereniy (ANRI) [Equipment and News of Radiation Metering]. 2008, no.2, pp. 37—43.
  3. Radiatsiya: dozy, effekty, risk [Radiation: Doses, Effects, Risk.] Moscow, Mir Publ., 1998.
  4. Krewski D. Residential Radon and Risk of Lung Cancer: a Combined Analysis of 7 North American Case-Control Studies. Epidemiology. 2005, no. 16, pp. 137—145.
  5. Tsapalov A.A. Otsenka srednegodovogo urovnya EROA radona v pomeshcheniyakh na osnove rezul'tatov kratkosrochnykh izmereniy radiometrom «Al'faAERO» [Assessment of Average Indoor Annual Level of Radon Based on Results of Short-term Measurements Taken by AlfaAERO Radiometer]. Apparatura i novosti radiatsionnykh izmereniy (ANRI) [Equipment and News of Radiation Metering]. 2008, no.3, pp. 49—58.
  6. Gulabyants L.A. Printsip postroeniya novykh norm proektirovaniya protivoradonovoy zashchity zdaniy [Principle of Development of New Standards of Design of Radon Protection of Buildings]. Academia. Arkhitektura i stroitel'stvo [Academy. Architecture and Civil Engineering]. 2009, no. 5, NIISF RAASN Publ., pp. 461—467.
  7. Nazirov R.A., Peresypkin E.V., Tarasov I.V., Vereshchagin V.I. Snizhenie estestvennoy radioaktivnosti tsementnykh betonov [Reduction of Natural Radioactivity of Cement Concretes]. Izvestiya vuzov. Stroitel'stvo. [New of Institutions of Higher Education. Construction.] Novosibirsk, NGASU Publ., 2007, no.7, pp. 45—49.
  8. Radiatsionnyy kontrol' [Radiation Control]. Available at: http://glossary.ibrae.ac.ru/index. Date of access: 17.05.13.
  9. Vlasov A.D., Murin B.P. Edinitsy fizicheskikh velichin v nauke i tekhnike [Units of Values of Physics in Science and Technology]. Moscow, EAI Publ., 1990, pp. 63—64.
  10. William C. Graustein Karl K. Turekian. Radon Fluxes from Soils to the Atmosphere Measured by 210Pb–226Ra Disequilibrium in Soils. Geophysical Research Letters. May 1990, vol. 17, no. 6, pp. 841—844.
  11. Parovik R.I. Model' nestatsionarnoy diffuzii - advektsii radona v sisteme grunt — atmosfera [Model of Non-stationary Diffusion - Advection of Radon in the Soil – Atmosphere System]. Vestnik KRAUNTs. Fiziko-matematicheskie nauki [KRAUNTs Proceedings of Kamchatka Regional Association Centre for Education and Research. Physical and Mathematical Sciences.] 2010, no. 1, pp. 39—45.
  12. A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family From Radon. U.S. Environmental Protection Agency, 2009. Available at: http://www.epa.gov/radon/pdfs/citizensguide.pdf. Date of access: 17.05.2013.
  13. Consumer's Guide to Radon Reduction. U.S. Environmental Protection Agency, 2010. Available at: http://www.epa.gov/radon/pdfs/consguid.pdf. Date of access: 17.05.2013.
  14. Miles J., Howarth, C.B. 2000. Validation Scheme for Laboratories Making Measurements of Radon in Dwellings. NRPB-M1140 National Radiological Protection Board, Chilton, Didcot, Oxfordshire.
  15. Synnott, H., Fenton D. 2005. An Evaluation of Radon Mapping Techniques in Europe. Project deliverable for the European Radon Research and Industry Collaboration Concerted Action project. Contract no: FIRI-CT-2001-20412 of the European Commission’s 6th Framework Programme. Available at: www.rpii.ie/reports. Date of access: 17.05.2013.

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WATER SAVING IN MODERN TOWNHOUSE VILLAGES

  • Orlov Evgeniy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Scienc- es, Associate Professor, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 110-115

It is appropriate and in some cases necessary, to arrange a special fire fighting reservoir, the size of which would vary depending on the number of buildings in a townhouse village. In case of fire, water can be taken out of it with the help of a fire pump, which is sometimes the only possible solution due to the pressure reduction in the networks of domestic water supply of villages.A water tank may also be useful for a household, as it offers a water reserve for a water supply network to assure continuous water supply to consumers in case of an accident (pump malfunction, power outage), or in case of discrepancy between regimes of water supply outside the network and water consumption inside a building. The tank is to be placed in a heated room, located as high as possible inside a building, for example, in the attic, in order to prevent water freezing. The tank volume may be about 200 300 liters; the tank is often made of steel. For the purpose of fire safety, there should always be an emergency ten-minute water supply in the tank for fire extinguishing purposes. It is worth mentioning that a free-flow water tank is preferable to a power-driven hydropneumatic one to assure an emergency supply of water for a particular period of time even in case of power failure.An electronic no-touch faucet can be even more efficient; it is activated by placing hands under a special sensor. It also has a function of maintaining a pre-set temperature, thus preventing hot water burns. It is desirable to install this a faucet in the bathroom close to the bath tub.

DOI: 10.22227/1997-0935.2013.8.110-115

References
  1. Naumov A.L., Brodach M.M. Resursosberezhenie v sistemakh vodosnabzheniya i vodootvedeniya [Resource Saving in Water Supply and Water Disposal Systems]. Santekhnika [Sanitary Engineering]. 2012, no. 1, pp. 14—20.
  2. Isaev V.N. Sotsial'no-ekonomicheskie aspekty vodosnabzheniya i vodootvedeniya [Social and Economic Aspects of Water Supply and Water Disposal]. Santekhnika [Sanitary Engineering]. 2007á no. 1, pp. 8—17.
  3. Orlov E.V. Vodo- i resursosberezhenie. Zhilye zdaniya kottedzhnykh i dachnykh poselkov [Water and Resources Saving. Residential Buildings in Developments of Summer House and Mansions]. Tekhnologii mira [Technologies of the World]. 2012, no. 10, pp. 35—41.
  4. Tabunshchikov Yu.A., Naumov A.L., Miller Yu.V. Kriterii energoeffektivnosti v «zelenom» stroitel'stve [Criteria of Energy Efficiency in "Green" Construction]. Energosberezhenie [Energy Saving]. 2012, no. 1, pp. 23—26.
  5. Brodach M.M. Ot vodosberezheniya k zdaniyu s nulevym vodopotrebleniem [From Water Saving to Zero Water Consumption Buildings]. Santekhnika [Sanitary Engineering]. 2010, no. 6, pp. 32—37.
  6. Brodach M.M. Zelenoe vodosnabzhenie i vodootvedenie [Green Water Supply and Water Disposal]. Santekhnika [Sanitary Engineering]. 2009, no. 4, pp. 6—10.
  7. Isaev V.N., Chukhin V.A., Gerasimenko A.V. Resursosberezhenie v sisteme khozyaystvenno-pit'evogo vodoprovoda [Resources Saving in Household Water Supply Systems]. Santekhnika [Sanitary Engineering]. 2011, no. 3, pp. 14—17.
  8. Shonina N.A. Vodosnabzhenie i vodootvedenie v usloviyakh kraynego severa [Water Supply and Water Disposal in the Conditions of Far North]. Santekhnika [Sanitary Engineering]. 2012, no. 5, pp. 32—44.
  9. PeterVarbanets M., Zurbr?gg C., Swartz C., Pronk W. Decentralized Systems for Potable Water and the Potential of Membrane Technology. Water Research, 2009, vol. 43, no. 2, pp. 245—265.
  10. Shonina N.A. Osobennosti proektirovaniya sistem vodosnabzheniya i kanalizatsii maloetazhnykh zdaniy [Features of Design of Systems of Water Supply and Sewerage in Low-rise Buildings]. Santekhnika [Sanitary Engineering]. 2010, no. 3, pp. 56—58.

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NEW OPPORTUNITIES FOR CLARIFICATION OF INTENSELY COLORED FILTRATES OF SOLID WASTE LANDFILLS CONCURRENTLY WITH THEIR DECONTAMINATION USING LIMEMILK AND CALCIUM SALTS

  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Head, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Konygin Aleksandr Aleksandrovich - ECOTECH-MOSCOW Limited Liability Company principal specialist, ECOTECH-MOSCOW Limited Liability Company, 6/8 B. Pionerskaya st., Moscow, 115054, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 116-122

The authors studied the effect of the process parameters (pH, concentration of Ca2+) on precipitation of humic acids contained in the filtrate of solid waste in the process of its decontamination using lime. The content of contaminants in the filtrate was monitored through the employment of well-known methodologies using methods of optical molecular and atomic spectroscopy; pH values were monitored through the employment of the potentiometric method. In some cases, chemical oxygen demand was measured to identify changes of the content of organic substances in the solution. Concentration of humic substances was identified by measuring the absorption spectra in the UV and in the visible range and by applying the calibration curve. Samples of humic and fulvic acids produced by Ecoanalitika Open Joint Stock Company were used for benchmarking purposes.The optimal amount of lime milk for the purpose of precipitation of humic substances in the filtrate is equal to 24 g/l. It is proven that any further increase of the lime milk flow is limited by the increase of the residual calcium concentration in the purified solution. Consumption of lime milk in the course of clarification of filtrates may be reduced by sharing it with calcium salts. By adding 10% of calcium chloride to the lime milk content, lime milk consumption may be reduced by 50%.

DOI: 10.22227/1997-0935.2013.8.116-122

References
  1. Konygin A.A., Skvortsov L.S., Seliverstov A.F. Ochistka fil'trata poligonov zakhoroneniya tverdykh bytovykh otkhodov [Treatment of Filtrate of Waste Landfills]. Vodosnabzhenie i kanalizatsiya [Water Supply and Wastewater Disposal]. 2010, no. 1–2, pp. 124—127.
  2. Goncharuk V.V., Shkavro Z.N., Kucheruk D.D. Kompleksnaya ochistka stochnykh vod svalok tverdykh bytovykh otkhodov [Integrated wastewater treatment of municipal solid waste landfills]. Khimiya i tekhnologiya vody [Chemistry and Technology of Water]. 2007, vol. 29, no. 1, p. 55—66.
  3. Wilson A.L. J. Analytical Aspects of Chemically Modified Electrodes: Classification, Critical Evaluation and Recommendations. Appl. Chem. 1960, vol. 10, 377 p.
  4. Potapov P.A., Pupyrev E.I., Potapov A.D. Metody lokalizatsii i obrabotka fil'trata poligonov zakhoroneniya tverdykh bytovykh otkhodov [Methods of Containment and Processing of the Filtrate of Solid Waste Landfills]. Moscow, ASV Publ., 2004, 168 p.
  5. Stir E., Fisher M. Posobie spetsialista po ochistke stokov [Manual for Wastemater Treatment Specialists]. Warsaw, Zaydel'-Pzhivetski publ., 2002, 406 p.

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EFFECT PRODUCED BY THE TECHNOSPHERE ON THE POLLUTIONOF WATER BODIES IN RECREATION AREAS OF A MEGALOPOLIS

  • Sorokin Aleksandr Valer'evich - Moscow State University of Machine Building (MAMI) postgraduate student, Department of Environmental Safety of Motor Transport, Moscow State University of Machine Building (MAMI), 38 B. Semenovskaya st., Moscow, 107023, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sotnikova Elena Vasil’evna - Moscow State University of Machine Building (MAMI) Candidate of Chemical Sciences, Associate Professor, Department of Environmental Safety of Motor Transport, Moscow State University of Machine Building (MAMI), 38 B. Semenovskaya st., Moscow, 107023, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 123-130

This article contains a quantitative analysis of the content of heavy metals in soils, waters and sediments of the Verkhniy Kuz'minskiy pond in Moscow. This pond, coupled with other water bodies of the recreation area, represent a historical monument included into the UNESCO registrar. It is common practice to consider heavy metals and toxic elements as target research components. In most cases, these substances serve as the markers of the human activity. Besides, iron was also included into the list of target research components due to the possibility of the ferrocene admixture in the fuel. This decision was also substantiated by the data obtained on the basis of the analysis of samples of soil, water and benthal deposits of the Bol'shoy Troparevskiy Pond in Moscow. The quantitative analysis performed according to GOST 17.4.02—83 (State Standard 17.4.02—83) included elements of the ICP-MS technique. The variations factor was calculated for the heavy metals content in the soil, water and benthal deposits. Highly concentrated elements were found there. A comparison with the prior data on the content of the above components in the Bol'shoy Troparevskiy Pond was performed to identify patterns of distribution and accumulation of the components under research.

DOI: 10.22227/1997-0935.2013.8.123-130

References
  1. El'bekyan K.S., Khodzhayan A.B., Gevandova M.G. Neblagopriyatnoe vozdeystvie na organizm tyazhelykh metallov kak ekologicheskogo faktora [Adverse Effect of Heavy Metals on the Human Organism as an Ecological Factor]. Izvestiya Samarskogo nauchnogo tsentra RAN [News of Samara Centre for Research of the Russian Academy of Sciences]. 2009, vol. 11, no. 1(6), pp. 1197—1199.
  2. Ulitsy Moskvy. Starye i novye nazvaniya: toponimicheskiy slovar'-spravochnik [Streets of Moscow. Old and New Names. Toponymical Reference Book]. Moscow, Nauka, Tekhnika, Obrazovanie Publ., 2003.
  3. Korobko M.Yu. Moskva usadebnaya: putevoditel' [Guide to Moscow Mansions]. Moscow, 2005.
  4. Korobko M.Yu. Moskovskiy Versal': Kuz'minki-Lyublino [Moscow Versailles: Kuz'minki-Lyublino]. Moscow, 2001, 126 p.
  5. Poretskiy N.A. Selo Vlakhernskoe [Vlakhernskoe Village]. Moscow, 1913; reprinted in Moscow, 2000.
  6. Ashrafb M.A., Maah M.J. and Yusoff I.B. Study of Water Quality and Heavy Metals in Soil & Water of Ex-Mining Area Bestari Jaya, Peninsular Malaysia. International Journal of Basic & Applied Sciences IJBAS-IJENS. Vol. 10, no. 03.
  7. Wedepohl K.H. Geochemie. Sammiung G?schen, Bd 1224-1224a/1224b, 1967. 220 p.
  8. Taylor S.R. Abundance of Chemical Elements in the Continental Crust; a New Table. Geochimica et Cosmochimica Acta 28(8): 1,273-1,285. doi: 10.1016/0016-7037(64)90129-2. 1964. Pp. 414—422.
  9. Vinogradov A.P. Zakonomernosti raspredeleniya khimicheskikh elementov v zemnoy kore [Regularities of Distribution of Chemical Elements in the Earth Crust]. Geokhimiya [Geochemistry]. 1956, no. 1, pp. 6—52.
  10. Vinogradov A. P. Srednie soderzhaniya khimicheskikh elementov v glavnykh tipakh izverzhennykh gornykh porod zemnoy kory [Average Content of Chemical Elements in Major Types of Erupted Rock in the Earth Crust]. Geokhimiya [Geochemistry]. 1962, no. 7, pp. 555—571.

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HYDRAULICS. ENGINEERING HYDROLOGY. HYDRAULIC ENGINEERING

METHODOLOGY OF IDENTIFICATION OF THE DRAINAGE NORM FOR AREASEXPOSED TO FLOODING

  • Voronov Yuriy Viktorovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Water Discharge and Water Ecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shirkova Tat'yana Nikolaevna - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Water Discharge and Water Ecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 131-136

The authors argue that drainage norms depending on the functional use of territories must be considered as the first step in the design of flood protection systems. Further, calculation of the drainage norm should be performed based on the extent of the flooding vulnerability of areas. Any designer should identify the parameters of hazards that may cause harmful effects, including the groundwater level, the moisture content of soil, contamination of the groundwater and soil, and the change of soil properties by soaking and draining in order to characterize the hazard of flooding processes in urban and industrial areas. The classification of factors affecting the vulnerability of urban and industrial areas is based on the four features, or indicators of vulnerability, including urban, geotechnical, environmental, and operational indicators. An assessment of harmful effects of flooding should be made following the identification of the flooding hazard degree and the vulnerability of the area to flooding. The research findings contain the threshold of the geological safety and the acceptable depth of the groundwater. Any design of engineering protection actions should take account of the drainage norm within the boundaries based on the acceptable groundwater level in terms of the geological safety threshold.

DOI: 10.22227/1997-0935.2013.8.131-136

References
  1. Kuranov N.P., Kuranov P.N. Normativnye trebovaniya k sistemam inzhenernoy zashchity ot podtopleniya [Regulatory Requirements Applicable to Systems of Engineering Protection from Flooding]. Vodosnabzhenie i sanitarnaya tehnika [Water supply and sanitery equipment]. 2009, no.1, pp. 59—65.
  2. PACE official site. Available at: http://www.pacewater.com. Date of access: 28.05.2013.
  3. NDS official site. Available at: http://www.ndspro.com. Date of access: 28.05.2013.
  4. ADS official site. Available at: http://www.americandrainagesystems.com. Date of access: 28.05.2013.
  5. Drainage Systems Dublin official site. Available at: http://www.drainagesystems.ie. Date of access: 28.05.2013.
  6. Metodika otsenki veroyatnostnogo ushcherba ot vrednogo vozdeystviya vod i otsenki effektivnosti osushchestvleniya preventivnykh vodokhozyaystvennykh meropriyatiy [Methodology of Evaluation of Probable Damages Caused by the Harmful Influence of Water and Evaluation of Efficiency of Preventive Water Management Activities]. Ìoscow, VIEMS Publ., 2005.
  7. Kuranov N.P. Metodicheskie rekomendatsii po otsenke urovney bezopasnosti, riska i ushcherba ot podtopleniy gradopromyshlennykh territoriy [Methodological Recommendations on Evaluation of Safety, Risk and Damage Levels in Respect of Flooding of Urban and Industrial Territories]. Moscow, ZAO “DAR/VODGEO” Publ., 2010, 58 p.
  8. Dzektser E.S., Pyrchenko V.A. Tekhnologiya obespecheniya ustoychivogo razvitiya urbanizirovannykh territoriy v usloviyakh vozdeystviya prirodnykh opasnostey [Technology for Sustainable Development of Urbanized Territories Exposed to Natural Hazards]. Moscow, ZAO “DAR/VODGEO” Publ., 2004, 166 p.
  9. Kuz'min V.V., Timofeeva E.A., Chunosov D.V. Otsenka riska negativnykh vozdeystviy pri podtoplenii urbanizirovannykh territoriy [Evaluation of the Risk of Negative Impacts of the Flooding Exposure in Respect of Urbanized Territories]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. Moscow, VST Publ., 2008, no. 6, pp. 44—49.
  10. Osipov V.I., Shoygu S.K., editors. Prirodnye opasnosti Rossii. Tom 3. Ekzogennye geologicheskie opasnosti [Natural Hazards in Russia. Volume 3. Exogenous Geological Dangers]. Ìoscow, KRUK Publ., 2003.
  11. Ragozin A.L., editor. Prirodnye opasnosti Rossii. Tom 6. Otsenka i upravlenie prirodnymi riskami [Natural Hazards in Russia. Volume 6. Evaluation and Management of Natural Risks]. Ìoscow, KRUK Publ., 2003.

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STRESS-STRAIN STATE OF CONCRETE IN THE WALLS OF LOCK CHAMBERSOF THE MOSCOW CHANNEL

  • Levachev Stanislav Nikolaevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Hydraulic Engineering Construction, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Fedorova Tat’yana Sergeevna - Moscow State University of Civil Engineering (MGSU) postgraduate Student, Department of Hydraulic Engineering Construction, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 137-149

Moscow Channel represents a most important hydraulic engineering structure in Russia. Since its locks have been in operation for over 75 years, there are numerous cases of concrete disintegration of various nature and extent in the walls of locks chambers. The situation is quite risky due to the growing threat of accidents.The article deals with detection and analysis of destructive processes in the concrete walls of lock chambers, as well as evaluation of their stress-strain state. Gate no. 2 serves as an example, because several signs of its dangerous condition were first detected there (including cracks in the concrete and destruction of concrete). Various methods were employed to reinforce the structure, including consolidation of chamber walls using anchor rods, and reinforcement of camera walls by metal rods. Calculations were made to assess the stress-strain state of the concrete walls of Gate no. 2 of the Moscow Channel. The article includes an overview and analysis of earlier methods of repair and reinforcement of the chamber walls. The authors provide their recommendations on further safety of operation of the structures on the basis of the research findings and their analysis.

DOI: 10.22227/1997-0935.2013.8.137-149

References
  1. Ni V.E. Nadzor za nadezhnost'yu i bezopasnost'yu gidrosooruzheniy kanala imeni Moskvy [Supervision over Reliability and Safety of Hydraulic Structures of the Moscow CHANNEL]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 1987, no. 6, pp. 11—17.
  2. Materialy Pravitel'stvennoy komissii po priemu Kanala Moskva — Volga. Gidrotekhnicheskaya sektsiya. Betonnaya gruppa [Materials of the Government Commission on Commissioning of the Moscow-Volga Channel. Hydraulic Engineering Section. Concrete Group.] 1937.
  3. Sostoyanie stenok kamery shlyuza ¹ 2 Kanala imeni Moskvy po materialam naturnykh nablyudeniy [State of Chamber Walls of Lock no. 2 of the Moscow Channel Based on Field Observations]. Moscow, NIS Gidroproekt Publ., 1966.
  4. Shlyuz ¹ 2. Kapital'nyy remont zapadnoy stenki kamery. Rabochie chertezhi. Staticheskie raschety [Lock no. 2. Overhaul of the Western Wall of the Chamber. Engineering Drawings. Static Calculations]. Dedovsk, NIS Gidroproekt Publ., 1969.
  5. Analiz sostoyaniya zapadnoy i vostochnoy sten kamery shlyuza ¹ 2 [Analysis of Condition of Western and Eastern Walls of the Chamber of Lock no. 2]. UKiM Publ., MRF Publ., Moscow, 1975.
  6. Zakreplenie sten kamer shlyuzov ¹ 1-9 metodom kolonn [Stabilization of Walls of Locks no. 1-9 Chambers Using Columns]. Moscow, OOO Gidrostroyremont Publ., 2005.
  7. Otsenka napryazhenno-deformirovannogo sostoyaniya sten kamery shlyuza ¹ 2 Kanala imeni Moskvy [Assessment of the Stress-strain State of Chamber Walls of Lock no. 2 of the Moscow Channel]. FGUP “Kanala imeni Moskvy” Publ., Moscow, 2012.
  8. Obsledovanie sostoyaniya stenok shlyuza ¹ 2 Kanala imeni Moskvy [Inspection of Condition of Walls of Lock no. 2 of the Moscow Channel]. Moscow, NIS Gidroproekt Publ., 1960.
  9. Vybor varianta tekhnicheskogo resheniya kapital'nogo remonta vostochnoy stenki kamery shlyuza ¹ 2 [Choice of the Engineering Solution for the Overhaul of the Chamber of the Eastern Wall of Lock no. 2]. Poyasnitel'naya zapiska [Explanatory Note]. Moscow, NIS Gidroproekt Publ., 1978.
  10. Akt obsledovaniya razvedochnykh skvazhin shlyuza ¹ 2 (sektsii ¹¹ 1-15) [Examination Report Issued in Respect of Exploration Wells of Lock no. 2 (Sections no.1-15]. Tempy, UKiM Publ., 1972.
  11. Issledovanie metodom fotouprugosti napryazhennogo sostoyaniya stenki kamery shlyuza ¹ 2 kanala imeni Moskvy [Using Method of Photo-elasticity to Study the Stress-strain State of the Chamber of Lock no. 2]. Moscow, NIS Gidroproekt Publ., 1968.

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INFORMATION SYSTEMS AND LOGISTICS IN CIVIL ENGINEERING

MATHEMATICAL SIMULATION OF MASS TRANSFER IN THE VERTICAL SETTLER

  • Belyaev Nikolay Nikolaevich - Prydneprovsk State Academy of Civil Engineering and Architecture (PSACEA) Doctor of Technical Sciences, Associate Professor, Department of Hydraulics, Prydneprovsk State Academy of Civil Engineering and Architecture (PSACEA), 24a Chernyshevskiy St., Dnepropetrovsk, 49600, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Nagornaya Elena Konstantinovna - Prydneprovsk State Academy of Civil Engineering and Architecture (PSACEA) assistant lecturer, Department of Hydraulics, Prydneprovsk State Academy of Civil Engineering and Architecture (PSACEA), 24a Chernyshevskiy St., Dnepropetrovsk, 49600, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 150-157

Mathematical models of secondary settlers have been intensively developed in the past several years. The challenge is to develop CFD models capable of taking account of the geometrical shape of the settler, the most important physical processes, and to perform calculations in the timely manner. The task of the authors was to develop a 2D numerical model designated for the research into the transfer of waste waters inside vertical settlers, for the model to take account of the geometrical shape and structural features of the settler. The authors employed finite difference schemes as the basic methods of research. As a result, a new 2D CFD model was developed. The novel model may be used to perform CFD studies of vertical settlers. This model takes account of the geometrical shape of the settler, the central pipe inside it, and other peculiarities. The CFD model and code developed by the authors constitute a solution to multi-parametric problems of the vertical settler design. Computer time taken by this model is equal to the one of a 1D model.

DOI: 10.22227/1997-0935.2013.8.150-157

References
  1. Davydov E.I., Lyamaev B.F. Issledovanie i raschet vertikal'nogo otstoynika so spiral'no-navitoy nasadkoy [Research into and Analysis of a Vertical Settler Having a Spiral-wound Nozzle]. Inzhenerno-stroitel’nyy zhurnal [Journal of Civil Engineering]. Ìoscow, 2011, no. 5, pp. 10—15.
  2. Tavartkiladze I.M., Kravchuk A.M., Nechipor O.M. Matematicheskaya model' rascheta vertikal'nykh otstoynikov s peregorodkoy [Mathematical Model for the Analysis of Vertical Tanks Having Dividers]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 2006, no. 1, Part 2, pp. 39—42.
  3. B?rger R., Diehl S., Nopens I. A Consistent Modeling Methodology for Secondary Settling Tanks in Wastewater Treatment. Water Research. 2011, no. 45(6), pp. 2247—2260.
  4. Oleynik Ya.A., Kalugin Yu.I., Stepovaya N.G., Zyablikov S.M. Teoreticheskiy analiz protsessov osazhdeniya v sistemakh biologicheskoy ochistki stochnykh vod [Theoretical Analysis of Sedimentation Processes in Biological Wastewater Treatment]. Prikladna g³dromekhan³ka [Applied Hydromechanics]. 2004, vol. 6 (78), no. 4, pp. 62—67.
  5. Holenda B. Development of Modeling, Control and Optimization Tools for the Activated Sludge Process. Doctorate School of Chemical Engineering, University of Pannonia, 2007, 155 ð.
  6. David R., VandeWouwer A., Saucez P., Vasel J.-L. Classical Models of Secondary Settlers. 16th European Symposium on Computer Aided Process Engineering (ESCAPE 2006) and 9th International Symposium on Process Systems Engineering. Belgium, 2006, pp. 677—682.
  7. Plosz B.G., Nopens I., Rieger L., Griborio A., De Clercq J., Vanrolleghem P.A., Daigger G.T., Takacs I., Wicks J., Ekama G.A. A Critical Review of Clarifier Modeling: State-of-the-art and Engineering Practices. Proceedings 3rd IWA/WEF Wastewater Treatment Modeling Seminar (WWTmod2012). Mont-Sainte-Anne, Quebec, Canada, February 26-28, 2012, pp. 27—30.
  8. Plosz B. G., De Clercq J., Nopens I., Benedetti L., Vanrolleghem P.A. Shall We Upgrade One-dimensional Secondary Settler Models Used in WWTP simulators? An Assessment of Model Structure Uncertainty and Its Propagation. Water Science and Technology. Belgium, 2011, no. 63(8), pp. 1726—1738.
  9. Ramin E., Sin G., Mikkelsen P.S., Plosz B.G. Significance of Uncertainties Derived from Settling Tank Model Structure and Parameters on Predicting WWTP Performance. A Global Sensitivity Analysis Study. 8th IWA Symposium on Systems Analysis and Integrated Assessment Watermatex 2011. Spain, San Sebastian, 2011, pp. 476—483.
  10. Shaw A., McGuffie S., Wallis-Lage C., Barnard J. Optimizing Energy Dissipating Inlet (Edi) Design In Clarifiers Using an Innovative CFD Tool. Water Environment Federation (WEFTEC). 2005, pp. 8719—8736.
  11. Griborio A. Secondary Clarifier Modeling: a Multi-process Approach. University of New Orleans, USA, 2004, 440 p.
  12. Shahrokhi M., Rostami F., Said Md Azlin Md, Syafalni. The Computational Modeling of Baffle Configuration in the Primary Sedimentation Tanks. 2nd International Conference on Environmental Science and Technology Singapore, 2011, vol. 6, pp. V2-392—V2-396.
  13. Stamou A.I., Latsa M., Assimacopoulos D. Design of Two-storey Final Settling Tanks Using Mathematical Models. Journal of Hydroinformatics. 2000, no. 2(4), pp. 235—245.
  14. Marchuk G.I. Matematicheskoe modelirovanie v probleme okruzhayushchey sredy [Mathematical Modeling in the Environmental Problem]. Moscow, Nauka Publ., 1982, 320 p.
  15. Loytsyanskiy L.G. Mekhanika zhidkosti i gaza [Fluid and Gas Mechanics]. Moscow, Nauka Publ., 1978, 735 p.
  16. Zgurovskiy M.Z., Skopetskiy V.V., Khrushch V.K., Belyaev N.N. Chislennoe modelirovanie rasprostraneniya zagryazneniya v okruzhayushchey srede [Numerical modeling of Pollution Propagation in the Environment]. Kiev, Naukova dumka publ., 1997, 368 p.
  17. Samarskiy A.A. Teoriya raznostnykh skhem [Theory of Difference Schemes]. Moscow, Nauka Publ., 1983, 616 p.

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OPTIMIZATION OF HIGH DIMENSIONALITY SYSTEMS USING ILOG SOFTWARE COMPONENTS

  • Khayrullin Rustam Zinnatullovich - Moscow State University of Civil Engineering (MGSU) Doctor of Physical and Mathematical Sciences, senior scientific worker, Professor, Department of Higher Mathematics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 157-164

Effective logistics management in vertically integrated oil companies (VIOC) is an important factor of business success. Losses caused by irrational logistics management may reach hundreds of millions of rubles a year. Therefore, mathematical simulation of VIOC logistics and methods of optimization of high dimensionality systems represent a relevant problem.The author presents a logistics model for VIOCs and their oil products. The model is based on methods applicable to linear programming problems, algorithms of reduction and restoration of high dimensionality matrixes, and the software developed by ILOG Ltd., a leading developer of applied software components.The software package, developed by the author, solve the problem through the optimization of purchases, production, storage, flow and sales of VIOC oil products, in respect of dozens and even hundreds of small companies of the group. The software package takes account of a big variety of types of contracts between companies, delivery service providers, and storage facilities.This solution may be used to generate a wide range of reports both for VIOC as a whole, and for each VIOC constituent company.The software package has been successfully used for 5 years in respect of logistics, operational and strategic planning of purchases, production, storage, flow and sales of oil products, as well as generation and development of an optimal distribution network.The software was integrated into the corporate resource consumption planning system (ERP System). The assessment of the mathematical simulation is also provided and analyzed in the article.

DOI: 10.22227/1997-0935.2013.8.157-164

References
  1. Fusco M.E., Webster M. Increase Profitability across the Enterprise with AspenONE Petroleum Supply Chain. Aspen Technology Inc. Available at: http://aspentech.com/products/aspenONE-Petroleum-Supply-Chain. Date of Access: 09.08.13.
  2. Fusco M.E., Webster M. Maximize Profitability, Reduce Distribution Costs. Aspen Technology Inc. Available at: http://aspentech.com/products/aspen-distribution-planning-optimization.aspx. Date of Access: 09.08.13.
  3. Cardenuto R. Fine Tune Supply Chain Management with SAP Software. SAP Ltd. Available at http://www54.sap.com/solution/lob/scm.html. Date of Access: 09.08.13.
  4. Cardenuto R. Supercharge Oil and Gas Operations. Accelerate Innovation and Energize Performance — with Our Oil and Gas Industry Software. SAP Ltd. Available at: http://www54.sap.com/solution/industry/oil-gas.html. Date of Access: 09.08.13.
  5. Mikkilineni K., Sorkin L.R. Oil & Gas, Refining, Petrochemicals and Biofuels. Honeywell Ltd. Available at: http://honeywell.com/Products-Services/Pages/oil-gas-refining-petrochemicals.aspx. Date of Access: 09.08.13.
  6. ILOG CPLEX 10.1 User’s Manual. Copyright by ILOG, 2006, 140 p.
  7. Simpson I. IBM ILOG. Why IBM Operational Decision Management. IBM Inc. Available at: http://www-01.ibm.com/software/websphere/ilog. Date of Access: 09.08.13.
  8. Simpson I. Network Design and Planning for Supply Chain Optimization. IBM Inc. Available at: http://www-03.ibm.com/software/products/us/en/ibmiloglogiplusxe. Date of Access: 09.08.13.
  9. Simpson I. Multi-objective Technology for Better Network Optimization. IBM Inc. Available at: http://www-03.ibm.com/software/products/us/en/supply-chain-optimization. Date of access: 09.08.13.
  10. Khayrullin R.Z. Tekhnologiya issledovaniya upravlyaemykh sistem [Technology of Research into Controllable Systems]. Gornyy informatsionno-analiticheskiy byulleten' [Informational and Analytical Mining Bulletin]. 1999, no. 4, pp. 111—113.

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ENGINEERING GEOMETRY AND COMPUTER GRAPHICS

TRANSFORMATION OF PARTICULAR RULED SURFACES INTO NON-RULEDSURFACES OF HIGHER ORDERS

  • Teplyakov Aleksandr Avramovich - Moscow State University of Civil Engineering (MGSU) Associate Professor, Department of Descriptive Geometry and Graphics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Vavanov Dmitriy Alekseevich - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of Descriptive Geometry and Graphics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 164-167

In the present-day civil engineering, non-ruled surfaces of higher orders, designed in various ways, are applied to design median surfaces of building envelopes. Let's consider the process of drawing a continuous framework of non-ruled surfaces consisting of the 4th order curves, using the method of transformation of ruled surfaces. The authors consider the construction of a framework, which constitutes non-ruled surfaces of the 4th order and conversion of the shape of the ruled surfaces. These surfaces are constructed through transformation of the two plane fields. By transforming the constituents of the cylindroid using this method, a non-ruled surface of the 8n order can be obtained and split into the two surfaces of the 4n order. The same method can be applied to transform a conoid. The above method of construction of the two plane fields may be used to transform the constituents of non-ruled surfaces, such as n-order curves, into 4n form median surfaces of high order enclosing structures.

DOI: 10.22227/1997-0935.2013.8.164-167

References
  1. Peklich V.A. Mnimaya nachertatel'naya geometriya [Imaginary Descriptive Geometry]. Moscow, 2007, 14 p.
  2. Hunt B. The Geometry of Some Special Arithmetic Quotiens. New York, Springer-Verlag, 1996, 97 p.
  3. Gil'bert D., Kon-Fossen S. Naglyadnaya geometriya [Visual Geometry]. Moscow, 2010, 78 p.
  4. Buzeman G., Kelli P. Proektivnaya geometriya i proektivnye metriki [Projective Geometry and Projective Metrics]. Moscow, 2010, 36 p.
  5. Glagolev N.A. Proektivnaya geometriya [Projective Geometry]. Moscow, 1963, 114 p.
  6. Artobolevskiy I.I. Teoriya mekhanizmov i mashin [Theory of Mechanisms and Machines]. Moscow, 2012, 96 p.
  7. Efanov A.M., Kovalevskiy V.P. Teoriya mekhanizmov i mashin [Theory of Mechanisms and Machines]. Orenburg, OGU Publ., 2004, 152 p.
  8. Artobolevskiy I.I. Mekhanizmy v sovremennoy tekhnike [Mechanisms in Modern Engineering]. Moscow, Oniks Publ., 2012, 149 p.
  9. Znamenskaya O.V., Rabotin V.V. Differentsial'naya geometriya i topologiya [Differential Geometry and Topology]. Krasnoyarsk, 2007, 121 p.
  10. Choe J., Ghomi M., Ritore M. Total Positive Curvature of Hypersurfaces with Convex Boundary. J. Differential Geom. 2006, 131 p.

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PROBLEMS OF HIGHER EDUCATION IN CIVIL ENGINEERING

NEW APPROACHES TO THE STUDY OF ENGINEERING GRAPHICS USING ADVANCEDINFORMATION TECHNOLOGIES

  • Tel’noy Viktor Ivanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Military Sciences, Associate Professor, Department of Descriptive Geometry and Graphics, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 168-176

The author provides an overview and analysis of methods employed by various types of educational activities, including lectures, practical classes, laboratory assignments and independent studies of students with account for the use of advanced information technologies and given the nature of engineering graphics as a university discipline. Multimedia lecturing is an effective method of generating willingness to master a university discipline. PowerPoint presentations are to be employed in two ways: first, as a modern didactic tool employed to illustrate the lecturing process and, second, as a textbook for self-studies. Practical classes in engineering graphics promote the study of all peculiarities of this discipline. Self-study is considered as an essential link in the process of compulsory education. Department of descriptive geometry and graphics of the Moscow State University of Civil Engineering developed customized electronic packages for all disciplines to provide timely assistance to lecturers and students with a view to successful organization of the learning process. The system of various control actions based on the system of tests has been implemented to improve the efficiency of all types of learning activities. The introduction of information technologies into the learning process improves the efficiency of engineering studies and ensures generation of vital skills.

DOI: 10.22227/1997-0935.2013.8.168-176

References
  1. Shebashev V.E. O graficheskoy podgotovke studentov v usloviyakh modernizatsii sistemy vysshego obrazovaniya [Teaching Graphics to Students in the Context of the Modernization of the System of Higher Education]. Sovremennye naukoemkie tekhnologii [Modern Research-intensive Technologies]. 2007, no. 7, pp. 81—84. Available at: http://www.rae.ru/snt/pdf/2007/7/35.pdf. Date of access: 07.04.2013.
  2. Kirillova T.I. Osobennosti ispol'zovaniya elektronnykh obrazovatel'nykh resursov v prepodavanii nachertatel'noy geometrii na stroitel'nom fakul'tete UGTU?UPI [Features of Employment of Electronic Educational Resources in Teaching Descriptive Geometry at the Faculty of Civil Engineering of the Ural State Technical University – Ural Polytechnic Institute]. Novye obrazovatel'nye tekhnologii v vuze: sb. dokl. V Mezhdunar. nauch.-metod. konf. Ch. 1 [New Educational Technologies at Institutions of Higher Education. Collected works of the 5th International Science and Methodology Conference. Part 1]. Ekaterinburg, UGTU?UPI Publ., 2008, pp. 233—237. Available at: http://window.edu.ru/library/pdf2txt/684/71684/48924. Date of access: 15.04.2013.
  3. Kononova T.A. Elektronnye mul'timediynye sredstva pri izuchenii inzhenernoy grafiki [Electronic Multimedia Devices in the Study of Engineering Graphics]. Internet-konferentsiya MTF 2011 [Internet Conference MTF 2011]. Vladimir, VlGU Publ., 2011. Available at: cs.vlsu.ru›forum_arh/?sid=14&eid=288. Date of access: 25.04.2013.
  4. Moiseeva O.A. Ispol'zovanie informatsionnykh tekhnologiy pri izuchenii kursa «Nachertatel'naya geometriya i inzhenernaya grafika» [Using Information Technologies in the Study of Descriptive Geometry and Engineering Graphics]. Primenenie informatsionno-kommunikatsionnykh tekhnologiy v obrazovanii: VII Vseros. nauch.-prakt. konf. [Application of Information and Communication Technologies in Education. 7th All-Russian Science and Practical Conference]. Yoshkar-Ola, 2010. Available at: http://ito.edu.ru/2010/MariyEl/II/II-0-44.html. Date of access: 18.04.2013.
  5. Nikishina Yu.G. Ispol'zovanie informatsionnykh tekhnologiy pri izuchenii kursa «Inzhenernaya grafika» [Using Information Technologies in the Study of Engineering Graphics]. Vestnik TISBI [Proceedings of TISBI University of Management]. 2008, no. 1. Available at: http://old.tisbi.org/science/vestnik/2008/issue1/Cult3.html. Date of access: 27.04.2013.
  6. Stoler V.A., Kasinskiy B.A. Prepodavanie nachertatel'noy geometrii s ispol'zovaniem komp'yuterno-mul'timediynykh sistem [Teaching Descriptive Geometry with the Help of Computer and Multimedia Systems]. Problemy kachestva graficheskoy podgotovki v tekhnicheskom vuze v usloviyakh perekhoda na obrazovatel'nye standarty novogo pokoleniya: materialy II Mezhdunar. internet nauch.-tekhn. konf. [Problems of Quality of Teaching Graphics to Students of Engineering Universities in the Context of Conversion to Educational Standards of the New Generation. Materials of the 2nd International Internet Science and Technology Conference]. Perm, PGTU Publ., 2011. Available at: http://dgng.pstu.ru/conf2011/papers/7/. Date of access: 18.04.2013.
  7. Halim L., Yasin R.M., Ishar A. CAMED: Innovative Communication Tool in Teaching Engineering Drawing. WSEAS Transactions on Information Science and Applications. 2012, vol. 9, no. 2, pp. 58—67.
  8. Deshpande A.V. Use of Educational Technology in Engineering Education – a Computer Assisted Instruction (Multimedia) Package for Engineering Students. WSEAS Transactions on Advances in Engineering Education. 2010, vol. 7, no. 8, pp. 245—254.
  9. Kamariah Abu Bakar, Ahmad Fauzi Mohd Ayub, Rohani Ahmad Tarmizi. Utilization of Computer Technology in Learning Transformation. International Journal of Education and Information Technologies. 2010, vol. 4, no. 2, pp. 91—99.
  10. Rosen A.M. Engineering Education: Future Trends and Advances. Proceedings of the 6th WSEAS International Conference on Engineering Education. 2009, pp. 44—52.
  11. Churbanov V.I. Puti povysheniya effektivnosti provedeniya prakticheskikh zanyatiy po nachertatel'noy geometrii so studentami stroitel'nykh spetsial'nostey [Ways of Improving the Efficiency of Practical Classes in Descriptive Geometry Delivered to Students of Civil Engineering]. Sovremennye tekhnologii uchebnogo protsessa v vuze. Tezisy dokl. nauch.-metod. konf. [Modern Technologies of the University-level Educational Process. Theses of Reports of Science and Methodology Conference]. Ulyanovsk, UlGTU Publ., 2010, p. 66. Available at: http://venec.ulstu.ru/lib/disk/2010/Korolev.pdf. Date of access: 07.04.2013.
  12. Tel'noy V.I., Tsareva M.V. Ispol'zovanie informatsionnykh tekhnologiy pri prepodavanii komp'yuternoy grafiki [Use of Information Technologies in Teaching Computer Graphics]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 6, pp. 161—165.
  13. Gubina N.A., Monakhov B.E., Tel'noy V.I. Osobennosti i perspektivy razvitiya distantsionnogo obucheniya v MGSU [Features and Prospects for Development of Distance Learning at MGSU]. Informatizatsiya inzhenernogo obrazovaniya: tr. Mezhdunar. nauch.-metod. konf. [Computerization of Engineering Education. Works of International Science and Methodology Conference]. Moscow, MEI Publ., 2012, pp. 357 — 360. Available at: http://inforino2012.mpei.ru/App_Text/pdf/Gubina4.pdf. Date of access: 15.04.2013.

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