TECHNOLOGY OF CONSTRUCTION PROCEDURES. MECHANISMS AND EQUIPMENT

Ensuring high quality and efficiency of the worksin the process of constructing the tunnels of in-situ concrete

Vestnik MGSU 1/2014
  • Ginzburg Aleksandr Vladimirovich - Scientific Production Association «Cosmos» (LLK «NPO «KOSMOS») Candidate of Technical Sciences, Vice-President for Regional Development, Scientific Production Association «Cosmos» (LLK «NPO «KOSMOS»), 38-25, Shosse Entuziastov, Moscow, 111123, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 98-110

In the article the author describes the importance of the technological regulations development in the process of constructing various transport constructions: tunnels, subways, bridges and other important objects. In the article the peculiarities of the tech- nological regulations development are fully taken into account; the dependence of the depth of their development and the quality of the concrete constructions, as well as the speed of the objects of transport infrastructure construction, including the examples of building the road tunnels in Moscow. The course of their development is shown with account for the main provisions, which should be included in technological regulations in order to ensure the most complete coverage of the issues arising in engineering, laboratory and Supervisory structure in the process of performing the works. The author proposes new effective materials and technologies of works. In particular, sufficient attention is paid to self-compacting concrete — a new type of concrete, which is able to flow and compact under its own weight, completely filling the formwork even in case of dense reinforcement, while maintaining the homogeneity and having no seals. The application experience of concrete self-sealing in the construction of the metro showed that labor costs for the concrete mixture sealing were 5-6 times reduced, and the speed of laying the concrete increased 2-3 times. When laying self-compacting concrete high-quality surfaces are formed, which do not require additional costs to bring them to the design parameters. In addition, the work shows the parameters of the technological processes and sets various types of works sequence: the article describes the features of formwork, placement and curing of the concrete in terms of year-round construction, shows the importance of thermo physical calculations of concrete hardening and the efficiency of using self-sealing concrete. Sufficient attention is also paid to the methods of quality assurance and to the methods of preventing cracking of various structural elements of a construction, as well as to the safety requirements and ensuring proper protection of the environment.

DOI: 10.22227/1997-0935.2014.1.98-110

References
  1. Solov'yanchik A.R., Pulyaev I.S. Osobennosti vozvedeniya v zimnikh usloviyakh zhelezobetonnykh konstruktivnykh elementov zdaniya akademii dzyudo v g. Zvenigorod Moskovskoy oblasti [Features of Constructing the Reinforced Concrete Elements of the Building of Judo Academy in Zvenigorod City of Moscow Region in Winter Conditions]. Beton i zhelezobeton. Oborudovanie, materialy, tekhnologii [Concrete and Reinforced Concrete. Equipment, Materials, Technologies]. 2011, no. 2(5), pp. 76—80.
  2. Shifrin S.A., Tkachev A.V. Teplovoe vzaimodeystvie tverdeyushchego betona i betonnogo osnovaniya v usloviyakh solnechnoy radiatsii [Thermal Interaction of Hardening Concrete and Concrete Base in the Conditions of Sun Radiation]. Sbornik trudov VNIIPITeploproekt [Collection of Works of Teploproekt]. Moscow, VNIIPITeploproekt Publ., 1985, pp. 19—27.
  3. Solov'yanchik A.R., Korotin V.N., Pulyaev I.S., Tret'yakova N.S. Opyt primeneniya samouplotnyayushchikhsy betonnykh smesey pri sooruzhenii mostov i tonneley [The Experience of Applying Self-compacting Concrete Mixtures in the Process of Constructing Bridges and Tonnels]. Alitinform. Mezhdunarodnoe analiticheskoe obozrenie. Tsement. Beton. Sukhie smesi [Alitinform. International Analytical Review. Cement. Concrete. Dry Mixtures]. 2012, no. 3 (25), pp. 8—18.
  4. Smirnov N.V., Antonov E.A. Rol' polzuchesti betona v formirovanii termonapryazhennogo sostoyaniya monolitnykh zhelezobetonnykh konstruktsiy v protsesse ee vozvedeniya [The Role of Concrete Creep in the Process of Forming the Thermal Strain State of Monolithic Reinforced Concrete Structures during the Building Process]. Sbornik trudov TsNIIS [Collection of Works of Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ., 2005, no. 233, pp. 89—117.
  5. Solov'yanchik A.R., Sychev A.P., Shifrin S.A. O vliyanii rasstoyaniya mezhdu postoyannymi temperaturno-deformatsionnymi shvami na treshchinoobrazovanie v konstruktivnykh elementakh Gagarinskogo tonnelya [On the Influence of the Distance Between Constant Expansion Joints on Crack Formation in Constructive Elements of Gagarinskiy Tunnel]. Dolgovechnost' stroitel'nykh konstruktsiy. Teoriya i praktika zashchity ot korrozii: materialy Mezhdunarodnoy konferentsii 7—9 oktyabrya 2002 goda [Durability of Building Structures. Theory and Practice of Corrosion Proofing. Materials of the International Conference, October 7—9, 2002]. Moscow, Tsentr ekonomiki i marketinga Publ., 2002, pp. 11—17.
  6. Schoeppel K., Plannerer M., Springenschmid R. Determination of Restraint Stresses and of Material Properties during Hydration of Concrete with the Temperature-stress Testing Machine. International RILEM Symposium. Munich, 1994, p. 153.
  7. Solovyanchik A.R., Krylov B.A., Malinsky E.N. Inherent Thermal Stress Distributions in Concrete Structures and Method for their Control. Thermal Cracking in Concrete at Early Ages. Proceedings of the International RILEM Symposium. Munich, 1994, no. 25, pp. 369—376.
  8. Solov'yanchik A.R., Shifrin S.A. Upravlenie termonapryazhennym sostoyaniem monolitnykh zhelezobetonnykh konstruktsiy pri skorostnom kruglogodichnom stroitel'stve transportnykh sooruzheniy [Control of Thermal Strain State of Monolithic Reinforced Concrete Structures in the Process of High Speed Year-round Construction of Transport Structures]. Sbornik trudov TsNIIS [Collection of Works of the Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ., 2000, no. 203, pp. 158—164.
  9. Thielen G., Hintzen W. Investigation of Concrete Behavior under Restraint with a Temperature-stress Test Machine. International RILEM Symposium. Munich, 1994, no. 25, pp. 142—152.
  10. Shifrin S.A. Uchet neritmichnosti tekhnologicheskikh protsessov pri vybore i obosnovanii rezhimov betonirovaniya raznomassivnykh konstruktsiy transportnykh sooruzheniy [Account for Irregularity of Technological Processes in the Process of Choosing and Reasoning the Modes of Concrete Pouring of the Structures of Transport Constructions with Different Masses]. Sbornik trudov TsNIIS [Collection of Works of Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ, 2003, no. 217, pp. 206—216.

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Analysis of the possible increase of the excavators productivityafter removing soil adhesion to the scoop

Vestnik MGSU 2/2014
  • Zen'kov Sergey Alekseevich - Bratsk State University (BrGU) Candidate of Technical Sciences, Associate Professor, Department of Construction and Road Building Machinery, Bratsk State University (BrGU), 40 Makarenko street, Bratsk, 665709, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Balakhonov Nikita Aleksandrovich - Bratsk State University (BrGU) Master Student, Department of Integrated Mechanization of Construction, Bratsk State University (BrGU), 40 Makarenko street, Bratsk, 665709, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ignat'ev Kirill Andreevich - Bratsk State University (BrGU) postgraduate student, Department of Construction and Road Building Machinery, Bratsk State University (BrGU), 40 Makarenko street, Bratsk, 665709, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 98-104

In the process of developing wet cohesive soils (especially at cold temperatures) sticking and freezing of soil on the operating elements essentially reduces the machines performance. The performance decrease happens due to the reduction in the useful capacity of the scoops and due to incomplete unloading, the growth of frontal resistance at cutting (digging) as a result of wet ground sticking to a working part and also the resistance of the input into the scoop and increase of machine downtime due to the need to clean the operating elements. One of the most effective ways to reduce the adhesion of soils at the temperatures below zero is effecting with thermal and vibrothermal intensifiers.The article presents the analysis of shovels performance and soil frictional resistance inside the scoop. The proportionality coefficient or reduced friction coefficient takes into account the shift peculiarities when determining the soil friction force on metal surface, and its value includes deformation and adhesive components and depends on the same parameters as the shear resistance, namely, the time and the contact pressure, humidity and dispersity of soil, temperature in the shear plane, the surface state of the metal.Experimentally with the use of a special bench shift values the proportionality factor was determined depending on the temperature in the shear plane without affecting intensifiers, which reduce adhesion, and also at thermoacoustic and thermal impact. The results will allow calculating the frictional force on the metal surface of the operating element, taking into account adhesion and intensifiers effect. The obtained data will help to select the type of intensifier.

DOI: 10.22227/1997-0935.2014.2.98-104

References
  1. Abdrazakov F.K. Odnokovshovye ekskavatory mogut rabotat' proizvoditel'nee [Bucket Excavators can Work Longer]. Mekhanizatsiya stroitel'stva [Mechanization of Construction]. 1990, no. 6, pp. 16—17.
  2. Zadneprovskiy R.P. Teoriya treniya skol'zheniya [Sliding Friction Theory]. Volgograd, Ofset Publ., 2005, 51 p.
  3. Zen'kov S.A., Kurmashev E.V., Krasavin O.Yu. Analiz povysheniya proizvoditel'nosti ekskavatorov pri ispol'zovanii p'ezokeramicheskikh transd'yuserov [Analysis of Excavator Performance Improvement with the Use of Piezoceramic Transducers]. Sistemy. Metody. Tekhnologii [Systems. Methods. Technologies]. 2009, no. 4, pp. 38—41.
  4. Wang X.L., Ito N., Kito K. Study on Reducing Soil Adhesion to Machines by Vibration. Proceedings of the 12th International Conference of ISTVS, 7—10 October, 1996. China Machine Press, Beijing, China, pp. 539—545.
  5. Azadegan B., Massah J. Effect of Temperature on Adhesion of Clay Soil to Steel. Cercet?ri Agronomice ?n Moldova. 2012, vol. XLV, no. 2 (150), pp. 21—27. DOI: 10.2478/v10298-012-0011-z.
  6. Rajaram G., Erbach D.C. Effect of Wetting and Drying on Soil Physical Properties. Journal of Terramechanics. 1999, vol. 36, no. 1, pð. 39—49. DOI: 10.1016/S0022-4898(98)00030-5.
  7. Chen B., Liu D., Ning S., Cong Q. Research on the Reducing Adhesion and Scouring of Soil of Lugs by Using Unsmoothed Surface Electroosmosis Method. Transactions of the Chinese Society of Agricultural Engineering. 1995, no. 11 (3), pp. 29—33.
  8. Ignatyev K.A., Filonov A.S., Lkhanag D., Battseren I. Definitions of Time from the Surface Soil Breakout Body Work in a High Impact. Scientific Transactions. Ulaanbaatar, Mongolia, MUST, 2013, no. 3/139, pp. 144—146.
  9. Zen'kov S.A., Ignat'ev K.A. Vliyanie ul'trazvukovogo vozdeystviya na adgeziyu gruntov k rabochim organam zemleroynykh mashin [Ultrasound Influence on Soil Adhesion to the Operating Elements of Digging Machines]. Sistemy. Metody. Tekhnologii [Systems. Methods. Technologies]. 2012, no. 2 (14), pp. 43—45.
  10. Ignatyev K.A., Filonov A.S., Zarubin D.A. Application of Piezoceramic Radiators for Combating Adhesion or Soils to Excavating Part of an Earthmoving Machine. Science and Education: Materials of the 2nd International Research and Practice Conference. Munich, publishing office Vela Verlag Waldkraiburg — Munich- Germany, 2012, vol. 1, pp. 251—256.
  11. Zhidovkin V.V., Nechaev A.N., Krasavin O.Yu. Primenenie gibkikh nagrevatel'nykh elementov dlya snizheniya adgezii grunta k rabochim organam SDM [Using Elastic Heating Elements for Reducing Soil Adhesion to the Operating Elements of a Road-building Machine]. Stroitel'stvo: materialy, konstruktsii, tekhnologii: materialy I (VII) Vserossiyskoy nauchno-tekhnicheskoy konferentsii [Construction: Materials, Structures, Technologies: Materials of the 1 (7) All-Russian Scientific and Technical Conference]. Bratsk, 2009, pp. 154—158.
  12. Dippel' R.A., Bulaev K.V., Baturo A.A. Planirovanie eksperimenta po issledovaniyu vliyaniya parametrov teplovogo vozdeystviya na soprotivlenie sdvigu grunta [Planning the Experiment on the Research of Thermal Parameters Influence on the Shear Strength in Soils]. Mekhaniki XXI veku [Mechanics of the 21st Century]. 2005, no. 4, pp. 52—56.
  13. Banshchikov M.S., Voropaev D.V., Bubnova O.E. Primenenie nagrevatel'nykh ustroystv dlya snizheniya adgezii grunta [Using Heating Devices for Reducing Soil Adhesion]. Molodaya mysl': Nauka. Tekhnologii. Innovatsii: materialy III (IX) Vserossiyskoy nauchnotekhnicheskoy konferentsii studentov, magistrantov, aspirantov i molodykh uchenykh [Young Thought: Science. Technologies. Innovations: Works of the 3 (9) All-Russian Scientific and Technical Conference of Students, Master and Postgraduate Students and Young Scientists]. Bratsk, 2011, pp. 71—73.
  14. Zen'kov S.A., Ignat'ev K.A., Filonov A.S., Balakhonov N.A. Opredelenie ratsional'nykh parametrov oborudovaniya teplovogo deystviya k rabochim organam zemleroynykh mashin dlya razrabotki svyaznykh gruntov [Defining Rational Parameters of the Thermal Equipment to the Operating Elements of Digging Machines for Development of Cohesive Soils]. Vestnik Saratovskogo gosudarstvennogo tekhnicheskogo universiteta [Proceedings of Saratov State Technical University]. 2013, no. 2(71), issue 2, pp. 128—133.
  15. Zen'kov S.A., Kurmashev E.V., Munts V.V. Stend dlya issledovaniya vliyaniya kombinirovannogo vozdeystviya na adgeziyu gruntov k zemleroynym mashinam [Stand for Combined Influence Investigation on Soil Adhesion to Digging Machines]. Mekhaniki XXI veku [Mechanics of the 21st Century]. 2007, no. 6, pp. 15—18.

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The restorationof the dilapidated pipelines using compressed plastic pipes

Vestnik MGSU 2/2014
  • Orlov Vladimir Aleksandrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Head of the Department of Water Supply and Waste Water Treatment, 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 .
  • Chrenov Konstantin Evgen'evich - Moscow State University of Civil Engineering (MGSU) graduate student, 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 .
  • Bogomolova Irina Olegovna - Moscow State University of Civil Engineering (MGSU) Assistant, 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 105-113

The article provides the information on a promising technology for trenchless repair named Swagelining, which supposes pulling into the old pipeline the new polymer with its preliminary thermo-mechanical compression and further straightening. The coauthors present the results of the calculations determining the thickness of the polyethylene pipes after compression and straightening in the old pipeline depending on the initial diameter in case of different ratio of the diameter to the wall thickness (SDR) and the dynamics of the changes in hydraulic performance after repair work on the pipeline using the method Swagelining. The concept of the energy saving potential is formed in addition to a no-dig repair for pressure piping systems, water supply, and its magnitude. On the basis of the research results, the authors formulate the principles of the energy efficiency potential after the implementation of the trenchless technology of drawing the old pipeline with new polymer pipes with their preliminary thermo-mechanical compression and subsequent area enlargement. The technology Swagelining is described and the authors develop a mathematical model that illustrates the behavior of the pipeline in the process of shrink operations. Such parameters are analyzed as changing the diameter of the pipeline at thermo-mechanical compression, the hydraulic parameters of the new (polymer) and old (steel) pipelines, energy savings on one-meter length of the pipeline. The calculated values of the electric power economy on the whole length of the pipeline repair section with a corresponding flow of transported waters.The characteristics and capabilities of the technology of trenchless renovation Swagelining allows achieving simultaneously the effect of resource saving (eliminationof the defects and, as a consequence, of water leakage) and energy saving (reduction in the water transportation cost).A numerical example of the old steel pipeline renovation shows the calculated data, which proves the efficiency of the considered technology. The calculation results can be used as base material for designers when selecting the final decision of the alternative at reconstruction of dilapidated pipelines by Swagelining using a wide range of polymer pipes with the corresponding value of the SDR.

DOI: 10.22227/1997-0935.2014.2.105-113

References
  1. Federal'nyy zakon RF ot 17.12.2011 ¹ 416-FZ «O vodosnabzhenii i vodoot-vedenii» [Federal law of the Russian Federation from 17.12.2011 ¹ 416-FZ “On Water Supply and Sanitation”]. Konsul'tantPlyus. Available at: http://www.consultant.ru. Date of access: 24.03.2013.
  2. Khramenkov S.V. Strategiya modernizatsii vodoprovodnoy seti [The Strategy of Water Supply Networks Modernization]. Moscow, Stroyizdat Publ., 2005, 398 p.
  3. Kuliczkowski A. Rury Kanalizacyjne. Wydawnictwo Politechniki Swietokrzyskiej, Kielce, 2004, 507 p.
  4. Zwierzchowska A. Technologie bezwykopowej budowy sieci gazowych, wodociagowych i kanalizacyjnych. Politechnika swietokrzyska. Kielce, 2006, 180 p.
  5. Gal'perin E.M. Opredelenie nadezhnosti funktsionirovaniya kol'tsevoy vodoprovodnoy seti [Determining the Reliability of Water Ring Mains Operation]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 1999, no. 6, pp. 13—16.
  6. Kuliczkowski A., Kuliczkowska E., Zwierzchowska A. Technologie beswykopowe w inzeynierii srodowiska. Wydawnictwo Seidel-Przywecki Sp. Kielce, 2010, 735 p.
  7. Metodika opredeleniya potentsiala energosberezheniya i perechnya tipovykh meropriyatiy po energosberezheniyu i povysheniyu energeticheskoy effektivnosti [Methods of Determining the Energy Saving Potential and the List of Standard Measures on Energy Saving and Energy Efficiency]. Saint-Petersburg, SRO NP «Tri E» Publ., 2011, 76 p.
  8. Rameil M. Handbook of Pipe Bursting Practice. Vulkan verlag, Essen, 2007, 351 p.
  9. Orlov V.A., Kashkina E.A. Tekhnologiya Swagelining. Opyt vosstanovleniya napornogo chugunnogo truboprovoda s ispol'zovaniem bestransheynogo metoda [Technology Swagelining. Experience of Pressure Recovery of Cast Iron Pipes with the Use of Trenchless Method]. Tekhnologii Mira [Technologies of the World]. 2011, no. 9, pp. 13—14.
  10. Govindan Sh., Val'ski T., Kuk D. Resheniya Bentley Systems: gidravlicheskie modeli. Pomogaya prinimat' luchshie resheniya [Decisions of Bentley Systems: Hydraulic Models. Helping to Make Better Decisions]. SAPR i grafika [CAD and Graphics]. 2009, no. 4, pp. 36—38.
  11. Borisov D.A. Bentley Systems — modelirovanie i ekspluatatsiya naruzhnykh setey vodosnabzheniya i kanalizatsii [Bentley Systems — Modeling and Operation of External Networks of Water Supply and Sewerage]. SAPR i grafika [CAD and Graphics]. 2009, no. 5, pp. 64—68.

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The cooling processes of metal billets

Vestnik MGSU 3/2014
  • Miram Andrey Olegovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Heat Engineering and Heat and Gas Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-26-92; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Belov Yuriy Vital'evich - Moscow State University of Civil Engineering (MGSU) postgraduate student, assistant, Department of Heat Engineering and Heat and Gas Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-26-92; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Belov Vitaliy Mikhaylovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Heat Engineering and Heat and Gas Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-26-92; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 141-148

The article describes various methods for solving problems of nonstationary heat transfer. Nonstationary heat transfer is characterized by the fact that the temperature changes not only from point to point, but also in time. The process of cooling metal blanks must be considered a transient thermal conductivity. When solving the problem of cooling metal blanks we need to find the temperature change in the section. The authors show the complexity of the tasks of nonstationary heat transfer. If we consider the process of cooling metal billets as a complex process, in which the addition of nonstationary heat transfer is presented as a process of heat transfer by radiation, great probability of errors in calculations occurs. There is the feasibility of the use of experimental researches of cooling processes for metal blanks after continuous casting, in order to determine the error in the calculated values.

DOI: 10.22227/1997-0935.2014.3.141-148

References
  1. Lykov A.V. Nekotorye problemnye voprosy teorii teplomassoperenosa [Some Problematic Issues of Heat and Mass Transfer Theory]. Problema teplo- i massoperenosa: Sbornik nauchnykh trudov [Problems of Heat and Mass Transfer: Collection of Scientific Articles]. Minsk, Nauka i tekhnika Publ., 1976, pp. 9—82.
  2. Fokin V.M., Boykov G.P., Vidin Yu.V. Osnovy energosberezheniya v voprosakh teploobmena [Basics of Energy Saving in Matters of Heat Transfer]. Moscow, Mashinostroenie Publ., 2005, 192 p.
  3. Yudanov V.A., Grechukhin A.A., Tokarev A.V. Nestatsionarnyy teplovoy nasos [Nonstationary Heat Pump]. Vestnik KRSU [Proceedings of Kyrgyz-Russian Slavic University]. 2010, vol. 10, no. 5, pp. 109—115.
  4. Mikheev M.A., Mikheeva I.M. Osnovy teploperedachi [Fundamentals of Heat Transfer]. Moscow, Energiya Publ., 1977, 343 p.
  5. Kalitaev A.N. Identifi katsiya koeffi tsientov teplootdachi nepreryvnolitogo slitka v zone vtorichnogo okhlazhdeniya mashiny nepreryvnogo lit'ya zagotovok metodami optimal'nogo upravleniya [Identifying Heat-transfer Coefficient of a Continuous Casting in a Secondary Cooling Zone of a Continuous Casting Machine Using Optimal-control Techniques]. Nauka. Tekhnologii. Innovatsii: tezisy dokladov Vserossiyskoy konferentsii: v 2 tovakh [Science. Technologies. Innovations: Theses of the All-Russian Conference: in 2 volumes]. Novosibirsk, NGTU Publ., 2004, vol. 1, pp. 91—92.
  6. Dymnich A.Kh., Troyanskiy A.A. Teploprovodnost' [Heat Transfer]. Donetsk, Nord-Pres Publ., 2004, 370 p.
  7. Il'inskiy I.V., Prokhach E.E., Pershin V.P. Nestatsionarnyy konvektivnyy teploobmen pri estestvennom ostyvanii vertikal'nykh plastin [Nonstationary Convective Heat Transfer]. Inzhenerno-fizicheskiy zhurnal [Engineering and Physical Journal]. 1974, vol. 27, no. 3, pp. 524.
  8. Rabinovich G.D. Nestatsionarnyy teploobmen v protivotochnom rekuperativnom apparate [Unsteady Heat Transfer in Counterfl ow Recuperative Unit]. Inzhenerno-fizicheskiy zhurnal [Engineering and Physical Journal]. 1961, vol. 4, no. 2, pp. 58—62.
  9. Bukhmirov V.V., Sozinova T.E., Nosova S.V., Nikitin K.B. Issledovanie protsessa nestatsionarnoy teploprovodnosti i teplonapryazhennogo sostoyaniya tverdykh tel na imitatsionnoy matematicheskoy modeli [Investigation of Non-stationary Thermal Conductivity Process and Heat-stressed State of Solids on Mathematical Simulation Model]. Ivanovo, Ivanovskiy gosudarstvennyy energeticheskiy universitet Publ., 2003, 41 p.
  10. Petrazhitskiy G.B., Polezhaev V.I. Inzhenernyy metod rascheta nestatsionarnykh protsessov teploprovodnosti v tonkikh mnogosloynykh stenkakh [Engineering Calculation Method for Unsteady Processes of Thermal Conductivity in Thin Multi-layer Walls]. Teploenergetika [Thermal Engineering]. 1962, no. 2, pp. 73—76.
  11. Egorov V.I. Tochnye metody resheniya zadach teploprovodnosti [Accurate Methods of Thermal Conductivity Analysis]. Saint Petersburg, ITMO Publ., 2006, 46 p.
  12. Kuznetsov G.V., Sheremet M.A. Raznostnye metody resheniya zadach teploprovodnosti [Differential Methods of Solving the Problems of Heat Conductivity]. Tomsk, TPU Publ., 2008, 172 p.
  13. Gukhman A.A. Primenenie teorii podobiya k issledovaniyu protsessov teplomassoobmena [Application of the Similarity Law in the Study of Heat-mass Exchange Processes]. Moscow, Vysshaya shkola Publ., 1974, 329 p.
  14. Buslenko N.P. Modelirovanie slozhnykh sistem [Complex Systems Modeling]. Moscow, Nauka Publ., 1968, 355 p.
  15. Pereverzev D.A., Kostrykin V.A., Paley V.A. Modelirovanie i issledovanie protsessov ostyvaniya moshchnykh paroturbinnykh agregatov [Modeling and Study of the Cooling Processes of Powerful Steam-turbine Units]. Teploenergetika [Thermal Engineering]. 1980, no. 9, pp. 34—38.

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Low-energy thermal processing technology of foamed concrete products in landfills using solar energy

Vestnik MGSU 3/2014
  • Dauzhanov Nabi Tokmurzaevich - Kyzylorda State University Named after Korkyt Ata (KGU im. Korkyt Ata) Candidate of Technical Sciences, Associate Professor, Department of Architecture and Construction Production, Kyzylorda State University Named after Korkyt Ata (KGU im. Korkyt Ata), 29A Ayteke bi St., Kyzylorda, 120014, Kazakhstan; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Krylov Boris Aleksandrovich - Russian Academy of Architecture and Construction Sciences (RAASN) Doctor of Technical Sciences, Professor, Academician, Department of Construction Sciences, Russian Academy of Architecture and Construction Sciences (RAASN), 24 Bolshaya Dmitrovka, Moscow, 107031, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 149-157

Based on the comprehensive research and industrial development there is a new method developed for accelerating the hardening of foamed products using thermal heating of products by soft modes, which allows to receive high quality material and organize energy-efficient and environmentally friendly production of foam concrete products.

DOI: 10.22227/1997-0935.2014.3.149-157

References
  1. Ukhova T.A. Energosberezhenie pri proizvodstve i primenenii izdeliy iz neavtoklavnogo porobetona [Energy Saving in the Process of Production and Application of Non-autoclaved Cellular Concrete Products]. Kriticheskie tekhnologii v stroitel'stve: trudy konferentsii [Critical Technologies in the Construction. Proceedings of the Conference]. Moscow, ÌGSU Publ., 1998, pp. 116—118.
  2. Sakharov G.P., Strel'bitskiy V.P. Porobeton i tekhniko-ekonomicheskie problemy resursosberezheniya [Porous Concrete and Technical and Economic Problems of Resource Saving]. Penobeton: sbornik nauchnykh trudov [The Foamed Concrete: Collection of Scientific Works]. Belgorod, 2003, no. 4, pp. 25—32.
  3. Pinsker V.A. Sostoyanie i problemy proizvodstva i primeneniya yacheistykh betonov [State and Problems of Production and Application of Cellular Concrete]. Yacheistye betony v sovremennom stroitel'stve: sbornik dokladov Mezhdunarodnoy nauchno-prakticheskoy konferentsii, 21—23 aprelya 2004 goda [Cellular Concretes in the Modern Construction: the collection of Reports of International Scientific and Technical Conference, 21-23 April, 2004]. Saint Petersburg, 2004, pp. 1—5.
  4. Kulikova L.V. Osnovy ispol'zovaniya vozobnovlyaemykh istochnikov energii [Basics of Renewable Energy Sources Application]. Moscow, 2008. Available at: http://ecoclub.nsu.ru/altenergy/common/common2_3.shtm. Date of access: 28.01.14.
  5. Krylov B.A. Solnechnaya energiya i perspektivy ee ispol'zovaniya dlya intensifikatsii tverdeniya betona [The Solar Energy and the Perspectives of its Use for the Intensification of the Concrete’s Hardening]. Ispol'zovanie solnechnoy energii v tekhnologii betona: Materialy soveshchaniya po probleme: sbornik [Materials of the Meeting on the Problem: The Use of Solar Energy in the Technology of Concrete. Collection]. Ashkhabad, 1982, pp. 20—25.
  6. Bazhenov Yu.M. Kriterii otsenki povedeniya betona v zharkom i sukhom klimate [Criteria for Assessing the Behavior of Concrete in Hot and Dry Climates]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1971, no. 8, pp. 9—11.
  7. Mironov S.A., Malinskiy E.N. Osnovy tekhnologii betona v usloviyakh sukhogo zharkogo klimata [Basics of Concrete Technology in Dry Hot Climate]. Moscow, Stroyizdat Publ., 1985, 317 p.
  8. Shakhova L.D., Chernositova E.S. Reologicheskie kharakteristiki penobetonnykh smesey [The Rheological Characteristics of the Foamed Concrete Mixes]. Teoriya i praktika proizvodstva i primeneniya yacheistogo betona v stroitel'stve: sbornik nauchnykh trudov [Theory and Practice of Production and Application of Cellular Concrete in Construction: Collection of Scientific Works]. Dnepropetrovsk, PGASA Publ., 2005, no. 2, pp. 89—94.
  9. Posobie po geliotermoobrabotke betonnykh i zhelezobetonnykh izdeliy s primeneniem svetoprozrachnykh i teploizoliruyushchikh pokrytiy (SVITAP) k SNiP 3.09.01—85 [Manual on Solar Heat Treatment of Aerated Concrete and Ferroconcrete Items with the Application of Translucent and Heat-insulating Coverings. Solar Perceptive and Heat-Accumulating Covering (SVITAP) to Construction Norms and Rules (SNiP) 3.09.01-85]. Moscow, NIIZhB Publ., 1987, 14 p.
  10. Krylov B.A., Aruova L.B. Kombinirovannyy metod ispol'zovaniya geliotekhnologii na poligonakh [Combined Method of Using Solar Technology at Landfi lls]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1996, no. 12, pp. 11—13.
  11. Aruova L.B. Vliyanie intensivnosti obezvozhivaniya i velichiny vlagopoter' na formirovanie struktury betonov [The Infl uence of Intensity of Drainage and Moisture Loss Values on the Structure of Concrete]. Poisk [Search]. Almaty, 2002, no. 3, pp. 32—33.
  12. Mironov S.A., Malinskiy E.N. Osnovy tekhnologii betona v usloviyakh sukhogo zharkogo klimata [The Basics of Concrete Technology in Dry Hot Climate]. Moscow, Stroyizdat Publ., 1985, 317 p.
  13. Aruova L.B. Kharakter formirovaniya temperaturnykh poley pri geliotermoobrabotke betona [Character of Temperature Fields Formation in the Concrete During Heat Treatment Using Solar Energy]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1996, no. 6, pp. 12—14.
  14. Krylov B.A., Maslov V.P. Dubliruyushchie istochniki energii pri kombinirovannoy geliotermoobrabotke zhelezobetonnykh izdeliy [Duplicate Sources of Energy in Combined Heat Treatment of Concrete Products]. Materialy Vsesoyuznogo nauchno-prakticheskogo soveshchaniya po tekhnologii izgotovleniya zhelezobetonnykh izdeliy i konstruktsiy s ispol'zovaniem klimaticheskikh faktorov zharkikh rayonov [Materials of Scientific and Practical Conference on Manufacturing Concrete Products and Structures Using Climatic Factors of Hot Areas]. Dushanbe, 1988, pp. 44—49.

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Solar grounds for the production of foamed concrete items

Vestnik MGSU 4/2014
  • Dauzhanov Nabi Tokmurzaevich - Kyzylorda State University Named after Korkyt Ata (KGU im. Korkyt Ata) Candidate of Technical Sciences, Associate Professor, Department of Architecture and Construction Production, Kyzylorda State University Named after Korkyt Ata (KGU im. Korkyt Ata), 29A Ayteke bi St., Kyzylorda, 120014, Kazakhstan; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Krylov Boris Aleksandrovich - Russian Academy of Architecture and Construction Sciences (RAASN) Doctor of Technical Sciences, Professor, Academician, Department of Construction Sciences, Russian Academy of Architecture and Construction Sciences (RAASN), 24 Bolshaya Dmitrovka, Moscow, 107031, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Aruova Lyazat Boranbaevna - Kyzylorda State University Named after Korkyt Ata (Korkyt Ata KSU) Doctor of Technical Sciences, Professor, Department of Architecture and Construction, Kyzylorda State University Named after Korkyt Ata (Korkyt Ata KSU), 29A Ayteke bi str., Kyzylorda, 120014, Kazakhstan; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 79-86

The method and low-energy intensive technology of manufacturing products of foamed concrete are developed providing bringing-in a solar energy in technological conversion for reducing the energy consumption for heat treating, allowing to obtain high quality products at low cost with a diurnal cycle of production. Thereby, the use of a minimal amount of additional electrical energy is stipulated for providing a consistence of temperature fields in the cross section of helio heated products in landfills in combination with solar energy. Until now, many scientists have investigated the issues of using the renewable energy resources in the construction industry including solar ones, for replacement of conventional fuels applied in the thermal treatment of concrete products and structures. However, pursuant to the analysis of the scientific literature, all known research studies and developments in this area are devoted to heliothermal treatment of conventional concrete, and at the same time the traditional methods for acceleration of hardening requiring significant energy consumption are still in use in production of such an effective building material as foam concrete. There are various methods of heliothermal treatment including combined ones, but they are not applicable in their production due to the specific characteristics (unlike conventional concrete) of manufacturing technology, the used components, the particular rheological properties, as well as a porous structure of foam concrete. Both the examining the use of solar energy in acceleration of foam concrete hardening according to the literature data and the pre-studies have revealed a problem under unilateral heliothermal treatment of foam concrete. It is found out that the temperature field of across thickness of the massif, especially during the first 7-8 hours, is irregular, that significantly affects the process of heating moisture transfer occurring within the massif. According to the previously obtained data, there is the highest uniformity of moisture distribution efficiency and thereby a maximum strength uniformity of products under bilateral supply of heat to the hardening concrete. On this basis, it is advisable to use both solar and additional electric energy having impact of periodic and short duration on the hardening concrete for the intensification of the foam products hardening in landfills in order to ensure a uniform heating of products and reducing temperature gradients. Calculations showed that the duration of landfill operation on production of foam concrete products for the areas of Central Asia located in 46° N is 8 months per year, i.e. from March to October. In order to achieve the greatest effect in the process of applying the developed method for complex heliothermal treatment of foam concrete products, there is a need in a steady warm and clear weather when the ambient temperature at noon reaches the values higher than +20 °C. It is found out that high strength characteristics can be achieved under optimum combination of exotherm of cement in foam concrete with soft modes of warming-up and cooling down of products.

DOI: 10.22227/1997-0935.2014.4.79-86

References
  1. Pinsker V.A. Sostoyanie i problemy proizvodstva i primeneniya yacheistykh betonov [State and Problems of Production and Use of Cellular Concrete]. Yacheistye betony v sovremennom stroitel'stve: sbornik dokladov Mezhdunarodnoy nauchno-prakticheskoy konferentsii, 21—23 aprelya 2004 g. [Cellular Concrete in the Modern Construction. Collection of the International Scientific and Practical Conference, April 21—23, 2004]. Saint Petersburg, 2004, pp. 1—5.
  2. Korotyshevski O.V. Novaya resursosberegayushchaya tekhnologiya po proizvodstvu vysokoeffektivnykh penobetonov [New Resource-saving Technology for the Production of High-performance Foam Concretes]. Stroitel'nye materialy [Building Materials]. 1999, no. 2, pp. 37—38.
  3. Zasedatelev I.B. Rol' klimaticheskikh faktorov v sozdanii energosberegayushchikh tekhnologiy sbornogo zhelezobetona [The Role of Climatic Factors in the Creation of Energy-saving Technologies of Precast Concrete]. Tekhnologiya betonnykh rabot v usloviyakh sukhogo zharkogo klimata: materialy IV Vsesoyuznogo koordinatsionnogo soveshchaniya po probleme [Materials of 6th All-Union Coordination Meeting on the Issue "Technology of Concrete Works in Dry Hot Climate]. Dushanbe, 1988, pp. 20.
  4. Mironov S.A., Malinskiy E.N. Osnovy tekhnologii betona v usloviyakh sukhogo zharkogo klimata [The Basics of Concrete Technology in Dry Hot Climate]. Moscow, Stroyizdat, 1985, 317 p.
  5. Baron S. The Embedded Energy Costs in Solar Energy Systems. Solar & Wind Technology. 1984, vol. 1, no. 1, pp. 63—69. DOI: 10.1016/0741-983X(84)90035-3.
  6. Krylov B.A., Zasedatelev I.B., Malinskiy E.N. Izgotovlenie sbornogo zhelezobetona s primeneniem gelioform [Production of Prefabricated Reinforced Concrete by Using Helioshapes]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1984, no. 3, pp. 17—18.
  7. Podgornov N.I. Termoobrabotka betona s ispol'zovaniem solnechnoy energii [Heat Treatment of Concrete Using Solar Energy]. Moscow, ASV Publ., 2010, 328 p.
  8. Lu Changgeng. Industrial Production of Concrete Components in China. Betonwerk+Fertigteil-Technik (Concrete Precasting Plant and Technology). 1986, no. 5, 56 p.
  9. Geller Steven N. Review of Accelerated Curing in the Concrete Pipe Industry. Concr. Ynt. Des. and Constr., 1983, no. 8, pp. 43—45.
  10. Greenwood K. Concrete Manufacture and Supplying in Hot Climates. Precast Concrete. 1979, vol. 10, no. 5, pp. 219—220.
  11. Krylov B.A. Solnechnaya energiya i perspektivy ee ispol'zovaniya dlya intensifikatsii tverdeniya betona [Solar Energy and Prospects of its Application for Concrete Hardening Intensification]. Ispol'zovanie solnechnoy energii v tekhnologii betona: Materialy soveshchaniya po probleme [Materials of the Meeting on the Problem "The Use of Solar Energy in Concrete Technology"]. Ashkhabad, 1982, pp. 20—25.
  12. Aruova L.B., Dauzhanov N.T. Ispol'zovanie solnechnoy energii dlya geliotermoobrabotki betona v Respublike Kazakhstan [Using Solar Energy for Heat Treatment of Concrete in Kazakhstan]. Alitinform Publ., 2011, no. 3 (20), pp. 14—18. Available at: http://www.alitinform.ru/zh_pdf/20.pdf.
  13. Malinina L.A. Teplovlazhnostnaya obrabotka tyazhelogo betona [Stream Treatment of Heavy Concrete]. Moscow, Stroyizdat Publ, 1977, 160 p.
  14. Kulikova L.V. Osnovy ispol'zovaniya vozobnovlyaemykh istochnikov energii [Fundamentals of Using Renewable Energy]. Moscow, 2008. Available at: http://ecoclub.nsu.ru/altenergy/common/common2_3.shtm. Date of access: 28.01.14.
  15. Posobie po geliotermoobrabotke betonnykh i zhelezobetonnykh izdeliy s primeneniem svetoprozrachnykh i teploizoliruyushchikh pokrytiy (SVITAP) k SNiP 3.09.01—85 [The Manual for Heat Treatment of Concrete and Concrete Products Using Translucent and Thermal Barrier Coatings (SVITAP) to Construction Requirements SNiP 3.09.01—85]. Moscow, NIIZhB Publ., 1987, 14 p.
  16. Dauzhanov N.T., Krylov B.A. Maloenergoemkaya tekhnologiya termoobrabotki izdeliy iz penobetona na poligonakh s pomoshch'yu solnechnoy energii [Low-Energy Thermal Processing Technology of Foamed Concrete Products in Landfills Using Solar Energy]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2014, no. 3, pp. 149—157.

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RESEARCH INTO UPGRADED MODELOF OPTICAL RANGE FINDER DVSD-1200

Vestnik MGSU 4/2013
  • Markaryan Venera Artsrunovna - Yerevan State University of Architecture and Construction (YSUAC) Candidate of Technical Sciences, Associate Professor, Chair, Department of Engineering Surveying, Yerevan State University of Architecture and Construction (YSUAC), 105 Teryana St., Yerevan, 0009; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 70-75

Continuous technological advancements introduced into geodetic meters produce a significant influence on methods of and instruments for identification of settlements and horizontal displacements of such unique engineering structures as elementary particle accelerators, high-precision directional control equipment, radio telescopes, TV towers, etc. Against the background of intensive development, the microwave technology largely and effectively employs high-precision optical range finders capable of taking linear measurements with an error of 0.1—0.5 mm. Researchers of Yerevan State University of Architecture and Construction (YSUAC) continue the implementation of their geodetic meter project that contemplates mprovement and modernization of high-precision optical range finder DVSD-1200.The author presents distinctive properties of new advancements introduced into optical range finder DVSD-1200. The research into the characteristics of the optical range finder and experiments with different types of reflectors have caused the author to make a conclusion that the receiving optics is to be incorporated into the item that serves as the subject of research.

DOI: 10.22227/1997-0935.2013.4.70-75

References
  1. Beglaryan A.G., Gyunashyan K.S., Ayrapetyan E.A., Khachatryan K.Kh. Ob osnove svetodal’nomera «0» razryada [Operating Principle of Zero Grade Optical Range Finder]. Geodeziya i aerofotos”emka [Geodesy and Aerosurveying]. 2005, no. 2, pp. 109—117.
  2. Beglaryan A.G. Ayrapetyan E.A. Parafaznyy svetodal’nomer dlya spetsial’nykh inzhenerno-geodezicheskikh rabot [Paraphase Optical Range Finder for Special-purpose Geodetic Assignments]. Sb. nauch. tr. EGUAS. [Collected Works of Yerevan State University of Architecture and Civil Engineering]. 2008, vol. 2(32), pp. 65—67.
  3. Sinanyan R.R., Ayrapetyan E.A., Gyunashyan K.S. Osobennosti postroeniya modulyatora sveta etalonnogo svetodal’nomera [Peculiarities of Design of a Light Modulator of an Optical Range Finder]. Geodeziya i aerofotos”emka [Geodesy and Aerosurveying]. 1999, no. 3, pp. 130—136.
  4. Beglaryan A.G. Gyunashyan K.S. Khachatryan K.Kh., Ayrapetyan E.A. Vysokotochnyy svetodal’nomer dlya komparatorov [High-precision Optical Range Finder Designated for Comparators]. Sb. nauch. tr. EGUAS. [Collected Works of Yerevan State University of Architecture and Civil Engineering]. 2009, vol. 2, pp. 62—65.
  5. Ayrapetyan E.A. Razrabotka i issledovanie svetodal’nomera «0» razryada dlya spetsial’nykh geodezicheskikh rabot [Development and Research into Zero-grade Optical Range Finder Designated for Special-purpose Geodetic Assignments]. Yerevan, EGUAS Publ., 2005, 26 p.
  6. Beglaryan A.G., Gyunashyan K.S., Hayrapetyan Ye.H. High Precision Light Rangefinder DVCD-1200 for Linear Comparator. Proceedings of 3rd int confer. On Contemporary Problems in Architecture and Construction. Beijing, China, Nov. 20-24, 2011, pp. 9—14.

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SMALL SIZE MACHINES FOR TRANSPORTATION OF CONCRETE MIXES AND SHOTCRETE OPERATIONS

Vestnik MGSU 5/2013
  • Emel’yanova Inga Anatol’evna - Kharkiv National University of Civil Engineering and Architecture (KhNUSA) Doctor of Technical Sciences, Professor, Department of Mechanization of Construction Processes; +38 (067) 571-56-84; 8 (050) 325-26-84, Kharkiv National University of Civil Engineering and Architecture (KhNUSA), 40 Sums’ka St., Kahrkiv, 61002, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Anishchenko Anna Igorevna - Kharkiv National University of Civil Engineering and Architecture (KhNUSA) assistant lecturer, Department of Mechanization of Construction Processes; +38 (067) 571-56-84; +38 (050) 325-26-84, Kharkiv National University of Civil Engineering and Architecture (KhNUSA), 40 Sums’ka St., Kahrkiv, 61002, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Melentsov Nikolay Alekseevich - OOO «Stal’konstruktsiya» Chief Engineer; +38 (067) 571-56-84; +38 (050) 325-26-84, OOO «Stal’konstruktsiya», 283 Moskovskiy pr., 61106, Kahrkiv, 61002, Ukraine.
  • Gordienko Anatoliy Timofeevich - Kharkiv National University of Civil Engineering and Architecture (KhNUSA) Candidate of Technical Sciences, Professor, Department of Mechanization of Construction Processes; +38 (067) 571-56-84; +38 (050) 325-26-84., Kharkiv National University of Civil Engineering and Architecture (KhNUSA), 40 Sums’ka St., Kahrkiv, 61002, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 87-96

The article represents a summary of findings of various research projects aimed at the optimization of specific items of small size machines developed and pilot tested at different stages of construction operations.For 15 years, Department of Mechanization of Construction Processes, Kharkiv National University of Civil Engineering and Architecture has been engaged in design, pilot testing and monitoring of practical application of small size construction machinery. All machines and items of equipment have adsorbed numerous research findings, and no similar products are available in Ukraine and worldwide.The authors analyze different items of construction machines that have already been tested in the course of construction operations. They include a twin-piston coun- terflow mortar-and-concrete pump, two-piston direct-flow mortar-and-concrete pumps equipped with ball valves, spring valves and disk valves, advanced cascade concrete mixing machines. Each of the above machines can operate in pursuance of a pre-set pattern of shotcrete operations.All machines are universal, as twin-piston concrete pumps may pump concrete mixes having different workability rates; they can also be used to transport building mixes in horizontal and vertical directions; they are applied for shotcrete operations. They are efficiently used in the preparation of different mixes.All machines and items of equipment are protected by Ukraine-wide patents. They are recommended for wide-scale use due to sophisticated structural solutions invested into their design.

DOI: 10.22227/1997-0935.2013.5.87-96

References
  1. Emel’yanova I.A., Zadorozhnyy A.A., Guzenko S.A., Melentsov N.A. Dvukhporshnevye rasstvorobetononasosy dlya usloviy stroitel’noy ploshchadki [Twin-piston Concrete Pumps for Construction Sites]. Kharkiv, Timchenko Publ., 2011, 196 p.
  2. Emel’yanova I.A., Zadorozhnyy A.A., Guzenko S.A. K voprosu opredeleniya effektivnosti ispol’zovaniya malogabaritnogo oborudovaniya dlya raboty na krupnonozernistykh betonnykh smesyakh [Identification of Efficiency of Small Size Machines in Case of Coarsegrained Concrete Mixes]. Naukoviy v³snik bud³vnitstva [Scientific Proceedings of Construction]. Khark³v, 2009, no. 51, pp. 205—212.
  3. Emel’yanova I.A., Zadorozhnyy A.A., Neporozhnev A.S., Guzenko S.A. Osobennosti transportirovaniya krupnozernistykh betonnykh smesey s ispol’zovaniem malogabaritnogo oborudovaniya [Transportation of Coarse-grained Concrete Mixes Using Small Size Machines]. Interstroymekh — 2008. Tr. Mezhdunar. nauch.-tekhn. konf. [Proceedings of International Scientific and Technical Conference Interstroymekh — 2008]. Vladimir, VGU Publ., 2008, pp. 200—206.
  4. Emel’yanova I.A., Baranov A.N., Zadorozhnyy A.A., Protsenko A.N., Regli U.K. Ispol’zovanie oborudovaniya «mokrogo» torkretorovaniya v usloviyakh rekonstruktsii zdaniy i sooruzheniy [Using Machines for “Wet” Shotcreting in Reconstruction of Buildings and Structures]. Naukoviy v³snik bud³vnitstva [Scientific Proceedings of Construction]. Khark³v, 1998, no. 2, pp. 26—29.
  5. Emel’yanova I.A., Baranov A.N., Zadorozhnyy A.A., Neporozhnev A.S. Dvukhporshnevoy rastvorobetononasos s kulachkovym privodom i vozvratnoy kulisoy [Twin-piston Concrete Pump Having a Cam Drive and a Reverse Crank]. Naukoviy v³snik bud³vnitstva [Scientific Proceedings of Construction]. Khark³v, 2001, no. 13, pp. 352—360.
  6. Emel’yanova I.A., Zadorozhnyy A.A., Melentsov N.A. Issledovanie raboty klapannykh uzlov universal’nykh dvukhporshnevykh rasstvorobetononasosov [Research into Operation of Valves of Universal Twin-piston Concrete Pumps]. Interstroymekh — 2012. Tr. Mezhdunar. nauch.-tekhn. konf. [Proceedings of International Scientific and Technical Conference Interstroymekh — 2008]. Izhevsk, IzhGTU Publ., 2012, pp. 55—61.
  7. Emel’yanova I.A., Zadorozhnyy A.A., Neporozhnev A.S., Guzenko S.A. Ispol’zovanie komplekta malogabaritnogo oborudovaniya pri provedenii vosstanovitel’nykh rabot na avarinom dome po ulitse Slin’ko ¹ 2b [Using a Set of Small Size Machines in the Course of Reconstruction of a Failing Building Located at 2b Slin’ko Street]. Zb³rnik naukovikh prats’. Ser³ya: Galuzeve mashinobuduvannya, bud³vnitstvo. No. 1 (31), Poltava, PoltNTU Publ., 2012, pp. 25—31.
  8. Zadorozhnyy A.A. Oborudovanie mokrogo torkretirovaniya pri provedenii gidroizolyatsionnykh rabot [Wet Shotcreting Machines in Water Proofing]. Pridn³provs’kiy naukoviy v³snik, Tekhn³chn³ nauki — Dn³propetrovs’k. PASA Publ., 1998, pp. 6—10.
  9. Emel’yanova I.A., Baranov A.M., Blazhko V.V., Tugay V.V. Zm³shuvach dlya prigotuvannya bud³vel’no¿ sum³sh³. Patent No. 74444 S2, Ukraine. MPK 7 V 28 S5 / 14; ¹ 20031213023. Application filed 30.12.03; Application published 15.12.05, Bulletin No. 12, 2 p.
  10. Emel’yanova I.A., Anishchenko A.I., Evel’ S.M., Blazhko V.V., Dobrokhodova O.V., Melentsov N.A. Betonosmesiteli, rabotayushchie v kaskadnom rezhime [Cascade Concrete Mixing Machines]. Kharkiv, Tim Publish Group, 2012, 146 p.

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Technologies for sectional trenchless repair of water discharge pipelines

Vestnik MGSU 7/2013
  • Orlov Vladimir Aleksandrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Head of the Department of Water Supply and Waste Water Treatment, 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 .
  • Orlov Evgeniy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Аssociate Professor, Department of Water Supply; +7 (499)183-36-29, 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 .
  • Zverev Pavel Vladimirovich - Moscow State University of Civil Engineering (MGSU) bachelor student, water supply and discharge major, Department of Water Supply; +7 (499)183-36-29., 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 86-95

The article represents an overview and analysis of trenchless technologies used to provide for the leak resistance and strength of dilapidated sections of pipelines made of ceramics, cast iron, asbestos cement and other materials. Sectional pipeline repair technologies, considered by the authors, include those for the repair of loose joints of straight sections of pipelines and loose joints in the points of connection to secondary pipelines. Technologies analyzed by the authors also include those applied for the restoration of pipe shell cracks. Organic resins and bandages are to be used as repair materials.Besides, the authors provide detailed descriptions of the composition and properties of pumping resins injected into pipe cracks to restore the structural strength of pipelines and to assure their further reliable operation.Moreover, the authors assess the basic strengths of the bandage technology, including its low cost, low time consumption, and suitability to various types of pipeline damages (depressurization of joints, cracks, leaks, etc.). Besides, this method does not require any excavations, trenches, hoists or other machines.In particular, sections of underground pipelines, having diameters of 150 – 180 mm, may be repaired by specialized repair robots. Robots may be equipped with special-purpose devices, including cutter heads, bandage application heads, and color motion cameras. Besides, sectional repair of pipelines, having the diameter of up to 600 mm, may be performed using robots produced by Hachler Umwelttechnik, which are particularly efficient if the repair work is needed to be performed in the points of pipeline branching.The choice of specific pipeline repair methods and substantiation of their application are mainly driven by (1) the post-cleaning condition of a pipeline, (2) the findings of the telediagnostics, (3) options for arrangement and use of specialized machinery on location, and (4) feasibility of the pipeline operation in the course of repair works and procedures.

DOI: 10.22227/1997-0935.2013.7.86-95

References
  1. Infrastruktur fur die Zukunft. Weimar. Rohrbau-Kongress. 2008. p. 214.
  2. Khramenkov S.V. Strategiya modernizatsii vodoprovodnoy seti [Water Supply Network Modernization Strategy]. Moscow, Stroyizdat Publ., 2005, 398 p.
  3. Zwierzchowska A. Technologie beswykopowej budowy sieci gazowych, wodociagowych I kanalizacyjnych. Politechnika swietokrzyska. 2006. p. 180.
  4. Otstavnov A.A., Kchantaev I.S., Orlov E.V. K viboru trub dlia bestrancheynogo ustroystva truboprovodov vodosnabgenyia I vodootvedeniya [To the choice of pipes for trenchless device pipelines of water supply and sewerage]. Plasticheskie massy [Plastic masses]. 2007. Pp. 40—43.
  5. Khramenkov S.V., Primin O.G. Problemy i puti snizheniya poter’ vody [Problems and Method of Water Loss Reduction]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 2012, no. 11, pp. 10—14.
  6. Orlov V.A., Michaylin A.V., Orlov Å.V. Technologii bestranscheynoy renovazii truboprovodov [Technologies of trenchless renovation of pipelines]. Ìoscow, ASV Publ., 2011. 143 p.
  7. Burger J. Verfahren zur Sanierung bzw. Renovierung von Abwasserleitungen und kanalen [Patent of Germany N 19833885.6; Declared 28.07.1998; Published 03.02.2000].
  8. Janflen A. Importance of Lateral Structural Repair of Lateral Lines Simultaneously with Main Line CIPP Rehabilitation. NO-DIG 2012, Sao Paulo, Brasil.
  9. Pinguet J.-F., Meynardie G. Reseaux d’assainissement: du diagnostic a la rehabilitation. Eau, industry, nuisances. 2006., no. 295, pp. 39—43.
  10. Kuliczkowski A., Kuliczkowska E., Zwierzchowska A. Technologie beswykopowe w inzeynierii srodowiska. Wydawnictwo Seidel-Przywecki Sp. 2010, 735 p.

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Efficiency analysis of technologies applied in the course of selecting approaches to organization of constructionoperations and renovation of pipelines

Vestnik MGSU 7/2013
  • Sapukhin Aleksandr Aleksandrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulics, 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 .
  • Kurochkina Valentina Aleksandrovna - 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation Candidate of Technical Sciences, Associate Professor, Department of Hydraulics and Water Resources, 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation, ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Novikov Sergey Olegovich - Moscow State University of Civil Engineering (MGSU) student, Institute of Construction and Architecture, 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 96-105

The authors consider particular methods, technologies and organizational aspects that may be implemented in the construction and renovation of pipelines using polythene materials instead of metals due to their economic and practical efficiency. It is noteworthy that the corrosion problem of steel pipelines is the phenomenon of metal destruction that reduces the throughput of pipelines and facilitates obstructions, juncture cleavages and water leaks as a result of reduction of service lives of pipelines. The authors analyzed the efficiency of polythene pipes from the viewpoint of hydraulic processes and the economic expediency; the authors identified that the polythene pipe’s throughput is 3 times as much as the one of steel pipes. Also, the authors determined the economic efficiency of polythene pipes: USD 0.5 million per 1 kilometer of pipeline.The authors take account of the technology-related aspect, as the water pipeline construction and reconstruction processes are limited by dense urban environments or due to the absence of overhaul factories in the close proximity to pipelines. Therefore, the results of the analysis evidence the efficiency of application of polythene in construction and reconstruction of pipeline engineering systems. It is highly resistant to abrasion and corrosion; it boosts the water flow velocity due to the low rough-ness of the internal surface; its service life is long enough, and its transportation is problem-free.

DOI: 10.22227/1997-0935.2013.7.96-105

References
  1. Kurochkina V.A. Vliyanie vozdukha v truboprovode na velichinu gidravlicheskogo udara [Influence of Air inside Pipelines onto Water Hammer Intensity]. Stroitel’stvo — formirovanie sredy zhiznedeyatel’nosti : Sb. trudov IV Mezhdunar. mezhvuz. nauch.-prakt. konf. molodykh uchenykh, aspirantov i doktorantov. [Construction – Formation of the Environment. Collected works of the 4th International inter-university science and practice conference of young researchers, postgraduates and doctoral students]. Moscow, 2001, pp. 84—88.
  2. Sapukhin A.A., Pavlov E.I., Gergalov L.A. Opredelenie raskhodov v vodootvodyashchikh kollektorakh, rabotayushchikh v napornom rezhime [Identification of Consumption Rates in Sewage Reservoirs Operating in the Pressure Mode]. Stroitel’nye materialy, izdeliya i santekhnika [Construction Materials, Products and Sanitary Engineering]. Kiev, Budivel’nik Publ., 1987, no. 10, pp. 35—42.
  3. Khachaturov A.K., Rubashov A.M. Vodno-khimicheskiy rezhim sovmestnoy raboty sistemy oborotnogo okhlazhdeniya TETs i teploseti [Water Chemistry Mode of Joint Operation of the System of Reverse Cooling of TPPs and Heating Networks]. Ochistka prirodnykh i stochnykh vod. Sb. nauch. tr. [Treatment of Natural and Sewage Water. Collection of research works]. Moscow, 2009, pp. 20—24.
  4. Frenkel’ N.Z. Gidravlika. Ch. 1 [Hydraulics. Part 1]. Moscow – Leningrad, Gosenergizdat Publ., 1956, pp. 210—239.
  5. Krzys B. White Paper on Rehabilitation of Waste Water Collection and Water Distribution Systems. EPA, 2009, no. 9, pp. 24. Available at: http://nepis.epa.gov. Date of access: 17.04.13.
  6. Ginzburg Ya.N., Leznov B.S. Sovremennye metody regulirovaniya rezhimov raboty sistem vodosnabzheniya krupnykh gorodov [Contemporary Methods of Regulation of Modes of Operation of Water Supply Systems of Major Cities]. Vodosnabzhenie i sanitarnaya tekhnika. Sb. [Water Supply and Sanitary Engineering. Collected Works]. Moscow, GOSINTI Publ., 1976, pp. 51—62.
  7. Agachev V.I., Vinogradov D.A. Sostoyanie i perspektivy bestransheynogo metoda vosstanovleniya sistem vodosnabzheniya i vodootvedeniya [State of and Prospects for the Trenchless Method of Restoration of Water Supply and Discharge Systems]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 2003, no. 12, pp. 15—24.
  8. Kosygin A.B. Avariynyy remont vodoprovoda pri pomoshchi telerobotov [Emergency Repairs of Water Supply Pipelines Using Tele-operated Robots]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 2000, no. 2, pp. 9—16.
  9. Khramenkov S.V. Tekhnologiya vosstanovleniya truboprovodov bestransheynymi metodami [Technology for Restoration of Pipelines Using Trenchless Methods]. Sb. statey i publikatsiy Moskovskogo Vodokanala [Collected articles and publications of Vodokanal - Moscow Water Services Company]. Moscow, 2004, pp. 236—251.
  10. Najafi M. Structural Evaluation of No-Dig Manhole Rehabilitation Technologies. Benjamin Media, 2013. Available at: http://www.trenchlessonline.com. Date of access: 17.04.13.

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Fundamentalsof calculations of a vibration-induced smoothingrack for a concrete spreader

Vestnik MGSU 9/2013
  • Kapyrin Pavel Dmitrievich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, chair, Department of Mechanization of Construction, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Stepanov Mikhail Alekseevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Chair, Department of Mechanical Equipment, Details of Machines, and Technology of Metals; Director, Department of Research and Technology, 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 47-55

The essence of the new development, proposed by the co-authors, consists in the following engineering solution: a concrete spreader, designated for the molding of products to be made of concrete mixtures and composed of a self-moving gantry, is equipped with a hoisting smoothing mechanism and a cart having a travel mechanism that has a roll-over hopper and a dispenser with a shutter, that is kinematically connected to the power engine. The shutter has an elastoplastic lining. The hoisting smoothing mechanism represents a rack having rigidly connected top and bottom plates. The longitudinal groove of the smoothing plate has teeth with a conical body. The teeth are attached to the springs hinged to the bottom surface of the top plate rigidly connected to the rod of the hydrocylinder and a frame installed on the guide of the gantry. The proposed construction of the vibration-induced smoothing rack of a concrete spreader improves the quality of the smoothed surface of concrete mixtures thanks to the higher intensification and compaction of the concrete mixture surface because of deeper penetration of vibrations into inner concrete layers and higher pressure produced on the concrete mixture.

DOI: 10.22227/1997-0935.2013.9.47-55

References
  1. Mikhaylov K.V. Zhelezobeton v XX veke [Reinforced Concrete in the 20ieth Century]. Moscow, Gotika Publ., 2001, 683 p.
  2. Chaus K.V., Chistov Yu.D., Labzina Yu.V. Tekhnologiya proizvodstva stroitel'nykh materialov, izdeliy i konstruktsiy [Technology of Production of Construction Materials, Products and Structures]. Moscow, Stroyizdat Publ., 1988, 448 p.
  3. Bogdanov V.S., Sharapov R.R., Fadin Yu.M., Semikopenko I.A., Nesmeyanov N.P., Gerasimenko V.B. Osnovy rascheta mashin i oborudovaniya predpriyatiy stroitel'nykh materialov i izdeliy [Fundamentals of Calculations of Machinery and Items of Equipment by Enterprises Engaged in Production of Construction Materials and Products]. Stary Oskol, TNT Publ., 2012, 680 p.
  4. Zhuravlev M.I., Folomeev A.A. Mekhanicheskoe oborudovanie predpriyatiy vyazhushchikh materialov i izdeliy na baze ikh [Mechanical Equipment at Enterprises Engaged in Production of Viscous Materials and Products Made of Viscous Materials]. Moscow, Vysshaya shkola publ., 2005, 233 p.
  5. Hammond G., Jones C. 2008. Inventory of Carbon and Energy. University of Bath.
  6. Kapyrin P.D. Betonoukladchik dlya formovaniya izdeliy iz betonnykh smesey [Concrete Spreader Designated for Molding of Products Made of Concrete Mixtures]. Patent Issued to Protect the Utility Model no. 128153, application no. 20131302741, filing date 22.01.2013, registration date 20.05.2013.
  7. Savinov O.A., Lavrinovich E.V. Teoriya i metody vibratsionnogo formovaniya zhelezobetonnykh izdeliy [Theory and Methods of Vibration-induced Molding of Reinforced Concrete Products]. Moscow, Stroyizdat Publ., 1988, 154 p.
  8. DSK «Blok» investiruet v novoe oborudovanie dlya proizvodstva perekrytiy i sten [“Block” Integrated House-building Factory Invests in New Floor and Wall Making Machinery]. Betonnyy zavod BFT Internation [BFT Internation Concrete Factory]. 2009, no. 3, pp. 52—55.
  9. Plouman J.M. The Influence of Variables in the Vibration of Concrete. Concrete Building and Concrete Products. 1953, vol. 28.
  10. Superplasticizers and Other Chemical Admixtures in Concrete. Proceedings of the Fifth Canmet, an ACI International Conference. Rome, Italy, 1997.

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Drilling in heat resistant cast stainless steel DIN 1.4848 for turbocharger housings

Vestnik MGSU 11/2013
  • Heiler Roland - Hochschule für Technik und Wirtschaft (HTW-Berlin) Doctor of Engineering, Professor, Hochschule für Technik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zeilmann Rodrigo Panosso - Universidade de Caxias do Sul (UCS) Doctor of Engineering, Professor, Universidade de Caxias do Sul (UCS), Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, RS, Brazil.
  • Estel Göran - Hochschule fürTechnik und Wirtschaft (HTW-Berlin) Master of Engineering, Hochschule fürTechnik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kauer Thomas - Hochschule für Technik und Wirtschaft (HTW-Berlin) Bachelor of Science, Hochschule für Technik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany.
  • Köller Moritz - Hochschule für Technik und Wirtschaft (HTW-Berlin) Bachelor of Science, Hochschule für Technik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany.

Pages 132-140

Modern turbochargers are important components to reduce the gasoline consumption on actual and future engines. The reduction of the cubic capacity (downsizing) of an engine with a simultaneous increasing power, reduced gasoline consumption and asignificant decrease of COoutput is only possible by using modern turbocharger tech-nology and fuel injection systems. The temperature in the housings will reach ca. 1050°C and it is necessary to use austenitic cast steel like 1.4848 for the housings. Drilling and threading are quite difficult technologies in this material.The experiment conducted by the authors showed, that for the machining of heat resistant cast stainless steel 1.4848 totally different drill designs are recommended from the precision tool manufactures. For a reduced or smaller axial force, cutting torque and a slower increase of the tool wear with an indication of longer tool life the following geometries does have positive aspects: a concave or straight cutting edge with a small cutting edge radius provides decrease in process parameters and a longer tool life. A reduction of the helix angle in combination with a straight nearly sharp cutting edge (small radius) provides also good results. Convex main cutting edges and high cutting edge radii or strong facets delivers higher forces and cutting torques in combination with a stronger corner edge wear. For a stabilization of the cutting corner edge, this part of the drill should be slightly rounded or produced with a small facet. A small land of the drill in combination with a step grinding gives advantages in comparison to wider lands with a continuous transition, due to reduced friction and a lower tendency of cold welding or build up edge.

DOI: 10.22227/1997-0935.2013.11.132-140

References
  1. Albrecht B. Abgasturbolader von Bosch Mahle Turbo Systems. Pressemitteilung der Bosch Mahle Turbo Systems. Frankfurt a.M., September 2009.
  2. Junker H.-K. Die zweistufige Aufladung wird Mainstream. Interview, ATZ online. 2008.
  3. Miklin A. Entwicklung einer Fertigungstechnologie f?r d?nnwandigen Stahlguss. Dissertation TU Freiberg. 2010.
  4. Zentrale f?r Gussverwendung-ZGV, Hrsg. Feingie?en, Herstellung, Eigenschaften, Anwendungen. Konstruieren + Gie?en. D?sseldorf, Deutscher Gie?ereiverband, 2008, no. 33, H. 1.
  5. Staneff H., Strieber B., Weber R., Zimmer H. Hei?e L?sung — Edelstahl f?r Lader. Gie?erei-Praxis, 2007, no. 6, pp. 246.
  6. Schmier M. Randzonenver?nderungen beim Bohren und ihre Auswirkungen auf Folgebearbeitungsverfahren. Dissertation Universit?t Kassel, 2004.
  7. Bargel H.-J., Schulze G. and others. Werkstoffkunde. Springer-Verlag Berlin Heidelberg, 2005, no. 9.

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Threading in heat resistant cast stainless steel DIN 1.4848for turbocharger housings

Vestnik MGSU 12/2013
  • Heiler Roland - Hochschule für Technik und Wirtschaft (HTW-Berlin) Doctor of Engineering, Professor, Hochschule für Technik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zeilmann Rodrigo Panosso - Universidade de Caxias do Sul (UCS) Doctor of Engineering, Professor, Universidade de Caxias do Sul (UCS), Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, RS, Brazil.
  • Estel Göran - Hochschule fürTechnik und Wirtschaft (HTW-Berlin) Master of Engineering, Hochschule fürTechnik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Cordes Oliver - Hochschule für Technik und Wirtschaft (HTW-Berlin) Master of Engineering, Hochschule für Technik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 93-100

Urbochargers are important components to minimize the petrol consumption of modern gasoline engines. The temperature in the turbocharger housings can reach until1.050 °C. Due to this reason, high heat resistant stainless steel, like the material DIN1.4848 with a high quantity of nickel (up to 25 %) and chrome (up to 20 %) is used in this application. During metal cutting operations the temperature at the cutting edge will increase due to the high quantity of nickel and the abrasive wear will be created by the chrome carbides within the cast material. The material hardness can increase by the machining process. Drilling and threading are one of the most critical machining operations in this material, because a huge frication area exists between the material and the tool. This provokes a high friction and the possibility of built-up-edge at the cutting edge which provides the rapid wear of the tool. In this part of the development project the tool life of different threading tools was analyzed. Taps in HSS-Co-PM and solid carbide were available for the tool life tests. The possibility to use the cold forming technology for threading was also analyzed. The strength of the internal threads was tested with pull out tests according DIN 898-2.

DOI: 10.22227/1997-0935.2013.12.93-100

References
  1. Albrecht B. Abgasturbolader von Bosch Mahle Turbo Systems. Pressemitteilung der Bosch Mahle Turbo Systems. Frankfurt a. M., September 2009.
  2. Cordes Oliver. Untersuchungen zur Innengewindefertigung in hitzebe-st?ndigem Edelstahlguss f?r Turboladergeh?use. Master-thesis, HTW-Berlin 2012. Zentrale f?r Gussverwendung-ZGV, Hrsg. Feingie?en, Herstellung, Eigenschaften, Anwendungen. Konstruieren + Gie?en. D?sseldorf, Deutscher Gie?ereiverband, 2008, no. 33, H.1.
  3. DIN898-2. Mechanische Eigenschaften von Verbindungselementen aus Kohlenstoffstahl und legiertem Stahl — Teil 2: Muttern mit festgelegten Pr?fkr?ften — Regelgewinde (ISO/DIS 898-2:2009). Berlin, Deutsches Institut f?r Normung e.V., 2010.
  4. Schmier M. Randzonenver?nderungen beim Bohren und ihre Auswirkungen auf Folgebearbeitungsverfahren. Dissertation Universit?t Kassel, 2004.

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Influence of ambient light on slopeson the performance properties of geosynthetic gridsbased on polyamide-6

Vestnik MGSU 12/2013
  • Darchiya Valentina Ivanovna - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of General Chemistry, 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 .
  • Pashkevich Stanislav Aleksandrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, head, Laboratory of Climatic Tests, Scientific and Research Institute of Construction Materials and Technologies, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 656-14-66; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pulyaev Ivan Sergeevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, associate Professor, Department of construction materials, 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 .
  • Pustovgar Andrey Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Director, Research and Scientific Institute for Construction Materials and Technologies, Professor, Department of Construction of Nuclear Installations, 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 .
  • Chernyshev Sergey Nikolaevich - Moscow State University of Civil Engineering (MGSU) Doctor of Geological and Mineralogical Sciences, Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-83-47; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 101-108

In the article the authors present the data of laboratory researches of geosynthetic grid samples based on polyamide-6, taken from the embankment slopes constructions of different light after 9 years of operation. The samples of geosynthetic grid EnkamatS20 were selected from the ground constructions of Svyataya Kanavka (Holy Groove) in the South of the Nizhny Novgorod region, the village of Diveevo, constructed in 2003 for the erosion preventive fixing of the slopes of the ditch and a shaft. The village of Diveevo is situated in a zone of clearly expressed continental climate, characterized by hot summers and cold winters. In the process of exploitation of ground structures in the period from 2003 to 2012, there was a decline in the protective properties of the lawn and turf, which was reflected in violation of the integrity of cover, including on the slopes of the ditch and of a shaft of a southern exposure, which are not sheltered from the direct streams of the sun. The similar situation was observed on deeply shaded slopes of a Northern exposure covered with trees and shrubs, as well as on the slopes of the bottom of the ditch, where the sun streams didn’t reach. From these mostly unprotected places in 2012 samples of geosynthetic grid Enkamat-S20 were selected in order to define the influence of the lighting conditions of slopes on the operational properties of Enkamat-S20 for 9 years of operation. According to the obtained data the residual tensile strength for each series of samples of geosynthetic grid Enkamat-S20 was identified. The influence of light intensity on the operational properties was evaluated by the highest residual tensile strength of the investigated samples compared to the passport strength value of geosynthetic grid Enkamat-S20. As a result of the research it was established, that the deeply shaded areas for 9 years of operation the reduction of tensile strength for samples of geosynthetic grid Enkamat-S20 amounted to 4.5 % and 6 % respectively. In the intensively lighted area the strength loss amounted to 39.5 % due to destruction of synthetic fiber. In the conditions of partial shadow the strength loss amounted to 25 %. As a result of the studies the authors offer the data on the lighting conditions impact on the operational properties of geosynthetic grid on the example of Enkamat-S20 upon condition disturbing the integrity of the lawn and turf, which are a natural protective shield.

DOI: 10.22227/1997-0935.2013.12.101-108

References
  1. Afonina O.V. Opyt primeneniya geotekstil'nykh poloten geokom proizvodstva OAO «KOMITEKS» pri stroitel'stve dorog [Experience of the Application of Geotextile Paintings GEOKOMKOMITEX JSC in the Construction of Roads]. Primenenie geomaterialov pri stroitel'stve i rekonstruktsii transportnykh ob"ektov: Materialy II Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii [Proceedings of 2nd International Scientific and Technical Conference «Application of Geomaterials in the Process of Construction and Reconstruction of Transport Facilities»]. Saint-Petersburg, S-Print Publ., 2002, p. 84—87.
  2. Ganchits V.V. Vliyanie ekspluatatsionnykh i tekhnologicheskikh vozdeystviy na sostoyanie georeshetok, ulozhennykh v put' [Influence of Operational and Technological Impacts on the State of Geogrids, Layed in a Path]. Primenenie geomaterialov pri stroitel'stve i rekonstruktsii transportnykh ob"ektov: Materialy II Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii [Proceedings of 2nd International Scientific and Technical Conference «Application of Geomaterials in the Process of Construction and Reconstruction of Transport Facilities»]. Saint-Petersburg, S-Print Publ., 2002, pp. 23—25.
  3. Gritsyk V.I. Geomaterialy, geokonstruktsii v ob"ektakh zemlyanogo polotna [Geomaterials, Geoconstruction in the Objects of the Roadbed]. Primenenie geomaterialov pri stroitel'stve i rekonstruktsii transportnykh ob"ektov: Materialy II Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii [Proceedings of 2nd International Scientific and Technical Conference «Application of Geomaterials in the Process of Construction and Reconstruction of Transport Facilities»]. Saint-Petersburg, S-Print Publ., 2002, p. 26—28.
  4. Shcherbina E.V., Telichenko V.I., Alekseev A.A., Smutchuk B.V., Slepnev P.A Geosinteticheskie materialy: klassifikatsiya, svoystva, oblast' primeneniya [Geosynthetic materials: classification, properties, application]. Izvestiya vuzov. Stroitel'stvo [News of the Institutions of Higher Education. Construction]. 2004, no. 5, pp. 97—102.
  5. Shcherbina E.V. Geosinteticheskie materialy v stroitel'stve [Geosynthetic Materials in the Construction]. Moscow, ASV Publ., 2004, 111 p.
  6. Gartung E., Zanziger H., Robert M. Koerner. Clay Geosynthetic Barriers. A.A. Balkema Pablishers, Lisse, Abingdon, Exton, Tokyo, 2002, 399 p.
  7. Estermann U., Blaesing P., Oester R. Bewernung von Eisenbahndammen mit Geokunst stiffen auf der ABS Berlin. Hamburg. 4. Informations- und Vortragsveranstaltung uber “Kunststoffe in Geotechnik”. Muenchen, 1995, pp. 160—166.
  8. Schade H.W., Fischer S. Gruendungen von Strassendaemen auf einem Moor mit Hilfe von Geotextilien. 6. Informations- und Vortragsveranstaltung uber “Kunststoffe in Geotechnik”. Muenchen, 1999, pp. 59—64.
  9. Scherbina E. Bruekenrampe aus bewehrter Erde in Moskau. 6. Informations- und Vortragsveranstaltung uber “Kunststoffe in Geotechnik”. Muenchen, 1999, pp. 65—70.
  10. Zanzinger H., Aleksiew N. Long-term Internal Shear on Clay Geosynthetic Barriers. Clay geosynthetic Barriers. A.A. Balkema Pablishers, Lisse, Abingdon, Exton, Tokyo, 2002, pp. 111—117.
  11. Emanuel' N.M., Dukachenko A.L. Khimicheskaya fizika stareniya i stabilizatsii polimerov [Chemical Physics of Aging and Stabilization of Polymetric Compounds]. Ìoscow, Nauka Publ., 1982, 360 p.
  12. Chernyshev S.N. Svyataya Bogorodichnaya Kanavka v Diveeve. Istoriya i vossozdanie [The Holy Virgin Groove in Diveevo. History and Recreation]. Mir Bozhiy [World of God]. 2009, no. 13, pp. 108—112.
  13. Chernyshev S.N., Shcherbina E.V. Svyataya Bogorodichnaya Kanavka: prirodnye usloviya i tekhnicheskie resheniya po vossozdaniyu [The Holy Virgin Groove: Natural Environment and Technical Decisions on Recreation]. Prirodnye usloviya stroitel'stva i sokhraneniya khramov Pravoslavnoy Rusi: Trudy 2-go Mezhdunarodnogo nauchno-prakticheskogo simpoziuma [Proceedings of the 2nd International Scientific and Practical Symposium «Natural Environment of Construction and Reconstruction of the Churches of Orthodox Russia”]. Sergiev Posad, 2005, pp. 247—253.

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Composition and structure of the stone composite gypsumbinder with additives of lime and the ground haydite dust

Vestnik MGSU 12/2013
  • Khaliullin Marat Il'surovich - Kazan State University of Architecture and Engineering (KGASU) Candidate of Technical Sciences, Associate Professor, Director, Department is Scientific and Research Activity, Kazan State University of Architecture and Engineering (KGASU), 1 Zelenaya St., Kazan, 420043, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rakhimov Ravil' Zufarovich - Kazan State University of Architecture and Engineering (KGASU) Doctor of Technical Sciences, Professor, Corresponding Member, Kazan State University of Architecture and Engineering (KGASU), 1 Zelenaya St., Kazan, 420043, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Gaifullin Al'bert Rinatovich - Kazan State University of Architecture and Engineering (KGASU) Candidate of Technical Sciences, Assistant, Department of Building Materials, Kazan State University of Architecture and Engineering (KGASU), 1 Zelenaya St., Kazan, 420043, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 109-117

In the last decades in a number of countries burned clays have been used as a pozzolanic additives to the concrete, which is connected with their universal distribution and cost savings due to reduction of long-distance transportation of the additives. The haydite dust is the co-product of the haydite gravel. At every enterprise of haydite gravel about 7-8 tons of haydite dust are daily formed. The haydite dust represents thermally activated clay. Its structure includes a certain amount of non-dehydrated clay and dehydrated clay minerals with crystal lattices of different levels of defects. Previously the authors described the compositions of cost-effective composite gypsum binding materials produced with complex mineral additive, including lime, a ground haudite dust and the superplasticizer possessing the durability at compression up to 27 MPa and coefficient of softening up to 0,78. In this paper the authors investigated the composition and structure of artificial stone on the basis of the developed composite gypsum binder. As a basic binder building plaster is used. In the research work the X-ray phase analysis, the differential thermal analysis, electron microscopy and the standard methods of research of concrete porosity were used. The introduction in composition of gypsum binder with a complex mineral additive allows to receive an artificial stone with more dense and finegrained structure, durability and water resistance in comparison with original binder without any additive. The content of ettringite in the course of hardening does not increase. The formation of low based low-main hydrosilicates of the calcium filling steam structure of a gypsum stone, forming additional contacts between the gypsum crystals, raising stone water resistance is established.

DOI: 10.22227/1997-0935.2013.12.109-117

References
  1. Vitruviy M. Desyat' knig ob arkhitekture [Ten Books on Architecture]. Moscow, Academia Arhitektury Publ., 1936, 331 p.
  2. Ramachandran V.S., Fel'dman R.F., Kollepardi M., Mal'khotra V.M., Dolch V.L., Mekhta P.K., Okhama I., Ratinov V.B., Rozenberg T.I., Meylvaganam N.P., Ramachandran V. Dobavki k betonam: spravochnoe posobie [Additives to the Concrete: Handbook]. Moscow, Stroyizdat Publ., 1988, 575 p.
  3. Habert G., Choupay N., Escadeillas G., Guillaume D., Montel J.M. Clay Content of Argillites: Influence on Cement Based Mortars. Applied Clay Science. 2009, vol. 43, no. 3—4, pp. 322—330.
  4. Fernandez R., Martirena F., Scrivener K.L. The Origin of the Pozzolanic Activity of Calcined Clay Minerals: A Comparison between Kaolinite, Illite and Montmorillonite. Cement and Concrete Research. 2011, vol., 41, no. 1, pp. 113—122.
  5. Tironi A., Tpecca M., Sian A., Irassar E.F. Termicheskaya aktivatsiya kaolinitovykh glin [Thermal Activation of Kaolinite Clays]. Tsement i ego primenenie [Cement and its Applications]. 2012, no 12, pp. 145—148.
  6. Gorin V.M., Tokareva S.A., Sukhov V.Yu., Nekhaev P.F., Avakova V.D., Romanov N.M. Rasshirenie oblastey primeneniya keramzitovogo graviya [Extension of the Scope of Expanded Haudite Gravel]. Stroitel'nye materialy [Building materials]. 2003, no. 11, pp. 19—21.
  7. Bazhenov Yu.M., Korovyakov V.F. Universal'nye organomineral'nye modifikatory gipsovykh vyazhushchikh veshchestv [Universal Organic-mineral Modifiers for Gypsum Binding Agents]. Stroitelnye materialy, oborudovanie, tehnologii XXI veka [Construction Materials, Equipment, Technologies of 21st Century]. 1999, no. 7—8, pp. 18—19.
  8. Pogorelov S.A. Ekologicheskie i tekhnologicheskie aspekty kompleksnogo ispol'zovaniya tekhnogennogo syr'ya [Environmental and Technological Aspects of the Use of Technogenic Raw Materials]. Stroitelnye materialy, oborudovanie, tehnologii XXI veka [Construction Materials, Equipment, Technologies of 21st Century]. 2004, no. 10, pp. 10—11.
  9. Khaliullin M.I., Rakhimov R.Z., Gayfullin A.R. Composite Gypsum Bindings with Increased Water Resistance, Containing Claydite Dust as an Active Mineral Additive. Weimarer Gipstagung, Tagungsbericht. F.A. Figner — Institut fur Baustoffkunde, Bauhaus — Universitat Weimar, Weimar, 2011, pp. 445—450.
  10. Khaliullin M.I., Rakhimov R.Z., Gayfullin A.R. Composite Gypsum Binders of Higher Water Resistance with an Active Mineral Additive-claydite Dust. Non-Traditional Cement and Concrete, IV Proceedings of the International Conference. Brno University of Technology & ?PSV, a.s., Uhersk? Ostroh, Brno, June 27—30, 2011, pp. 331—337.

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RESOURCE-SAVING TECHNOLOGY OF CONSTRUCTION MACHINERY OPERATION

Vestnik MGSU 2/2012
  • Fedosov Sergej Viktorovich - Ivanovo State University of Architecture and Civil Engineering (IGASA) Doctor of Technical Sciences, Professor, Member of the Russian Academy of Architecture and Civil Engineering Sciences 8 (4932) 32-85-40, Ivanovo State University of Architecture and Civil Engineering (IGASA), 20 8ogo Marta St., Ivanovo, 153037, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Maslennikov Valerij Aleksandrovich - Ivanovo State University of Architecture and Civil Engineering (IGASA) Candidate of Technical Sciences, Associated Professor, Head of Department of Automobiles and Auto Infrastructure 8 (4932) 32-51-83, Ivanovo State University of Architecture and Civil Engineering (IGASA), 20 8ogo Marta St., Ivanovo, 153037, Russia.
  • Osadchij Jurij Pavlovich - Ivanovo State University of Architecture and Civil Engineering (IGASA) Candidate of Technical Sciences, Associated Professor, Department of Automobiles and Auto Infrastructure 8 (4932) 32-51-83, Ivanovo State University of Architecture and Civil Engineering (IGASA), 20 8ogo Marta St., Ivanovo, 153037, Russia.
  • Markelov Aleksandr Vladimirovich - Ivanovo State University of Architecture and Civil Engineering (IGASU) Doctor of Technical Sciences, Professor, Member, Russian Academy of Architecture and Construction Sciences (RAACS), President, Ivanovo State University of Architecture and Civil Engineering (IGASU), 20 8ogo Marta St., Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 104 - 108

The paper presents the research of the process of recovery of used motor oil to be applicable for construction machinery. The solution to the problem in question consists in the development of compact oil recovery facilities to be installed in the areas where used oil is generated. Their concept of operation consists in the employment of baromembrane liquid separation principle. It is characterized by low power consumption, as the separation of used oil from admixtures may be performed within the temperature range of 20 to 40°C. The following conclusions were made upon completion of the research project:
used motor oils may be applied for recovery purposes through the application of membranes, with dimensions of pores varying from 0.15 to 0.5 mcm;
the optimal filtering pressure is to vary between 0.3 and 0.5 MPa;
any further research is to cover the problem of periodicity of maintenance of membranes aimed at the restoration of their performance and selectivity within a particular service period.
Depending on the type of membranes and the degree of used oil treatment, recovered oil may be applied for the initially designated purpose, as an additive injected into diesel fuel or delivered to major oil recovery facilities, although the latter purpose requires preliminary improvement of physical and chemical properties of used oil to assure its complete recovery.

DOI: 10.22227/1997-0935.2012.2.104 - 108

References
  1. Itinskaja N.I., Kuznecov N.A. Spravochnik po toplivu, maslam i tehnicheskim zhidkostjam [Reference Book: Fuels, Oils and Technical Fluids]. Moscow, Kolos, 1982, 208 p.
  2. Ivanov A.V., Gureev A.A., Popova N.N. and others. Osobennosti glubokogo okislenija masel pri jekspluatacii tehniki [In-Depth Oxidation of Oil in the Course of Operation of Machinery]. Himija i tehnologija topliv i masel, 1990, Issue # 10, pp. 20—22.
  3. Shashkin P.I., Braj I.V. Regeneracija otrabotannyh neftjanyh masel [Recovery of Used Petroleum Oils]. Moscow, Himija, 1970.
  4. Gricenko V.O., Orlov N.S. Primenenie mikrofil'tracii dlja regeneracii otrabotannyh motornyh masel [Application of Microfiltration for Regeneration of Used Motor Oils]. Membrany, 2002, Issue # 16, pp. 10—16.
  5. Kozlov M.P., Dubjaga V.P., Bon A.I. and others. Sposob ochistki masla [Oil Purification Method]. Pat. 2255795RF, published on 10.07.2005.
  6. Lutfulina N.A., Lukashevich V.I., Lukashevich A.V. Sposob regeneracii otrabotannyh masel i ustanovka dlja ego osuwestvlenija [Method of Regeneration of Used Oil and Respective Machines]. Pat. 2034910 RF, published on 10.05.95.
  7. Peng H., Tremblay A. Y.J. Membrane Regeneration and Filtration in Treating Oily Wastewaters. Membr. Sci, 2008, 324, Issue # 1–2, pp. 59—66.
  8. Garanin Je.M. Sposob utilizacii otrabotannogo motornogo masla i ustanovka dlja ego realizacii [Method of Regeneration of Used Oil and Respective Machines], pat. 2333933, published on 10.10.2006.
  9. Stankovski L., Cherednichenko R.O., Dorogochinskaja V.A. Klassifikacija otrabotannyh smazochnyh masel i pokazateli ih kachestva [Classification of Used Lubricant Oils and Their Quality Indicators]. Himija i tehnologija topliv i masel, 2010, Issue # 1 pp. 8—11.

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NEW TECHNOLOGIES TO SOLVE THE PRESENT-DAY CHALLENGES OF WASTE WATER TREATMENT

Vestnik MGSU 2/2012
  • Zaletova Nina Anatol'evna - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Department of Sewerage and Aquatic Ecology 8 (499) 183-27-65, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Voronov Jurij Viktorovich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Department of Sewerage and Aquatic Ecology 8 (499) 183-27-65, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 109 - 111

The author argues that the current standards of the quality of discharged waste waters are the drivers of new technologies of their treatment. Now traditional biological treatment is considered a universal method. However, compliance with the most recent standards requires that efficient removal of phosphorus in the course of biological processes must rise from 20 - 40 % to 98 - 99 %, efficiency of treatment of ammonium must go up to 98 - 99 %, while the share of nitrate and nitrite compounds formed in the course of biological treatment must be limited.
Given the fact that the contemporary method of treatment of waste water must meet the ecological requirements and be economical, improved technologies of biological treatment are most acceptable ones.
For practical purposes, the most solicited technologies are those that are based on the alternation of aerobic and anaerobic conditions of treatment of waste waters and/or active sludge. The most widely spread aerobic - anaerobic technology of treatment employs the method of biological nitrification - de-nitrification, which is the only method of removing all nitrogen compounds (ammonium, nitrite, nitrate) in accordance with the regulations that are effective in our country.
Any accompanying microflora boosts the overall biomass, and the laminar structure of the biological film assures the simultaneity of both aerobic and anaerobic processes, and, therefore, it intensifies the process of treatment.
Application of chemical treatment is an essential constituent of the waste water treatment technology, as it assures in-depth removal of phosphorus.

DOI: 10.22227/1997-0935.2012.2.109 - 111

References
  1. Muhin V.A. Kur'janovskie ochistnye sooruzhenija — startovaja ploschadka dlja novejshih tehnologij [Kurianovo Treatment Plants as the Starting Point for New Technologies], VST, 2011, Issue # 3.
  2. Sankt-Peterburg pokinul spisok zagrjaznitelej Baltijskogo morja [Saint-Petersburg Is Off the List of Baltic Sea Contaminators]. VST, Issue # 7, 2011.
  3. Zaletova N.A. Ochistka gorodskih stochnyh vod ot biogennyh veschestv (soedinenij azota i fosfora) [Urban Waste Water Treatment from Nutrients (Nitrogen and Phosphorus)]. Thesis of dissertation for the title of doctor of technical sciences. Moscow, 1999.

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SPIRAL CHAMBERS OF COMBINED PUMP-TURBINE UNITS AND CENTRIFUGAL PUMPS

Vestnik MGSU 2/2012
  • Mihajlov Ivan Evgrafovich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Department of Hydraulic Power Generation and Use of Aquatic Resources, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 112 - 116

Flow analysis and pressure loss in spiral chambers of turbines and pumps are considered in the paper. Drawbacks are also specified, and recommendations are provided in terms of the hydro-mechanical analysis and the construction of spiral chambers of combined pump-chamber units and centrifugal pumps.
Liquid flow pattern in spiral chambers of centrifugal pumps and combined pump-chamber units, when operating in the pump mode, has a diffuser character, and circulatory streams, flowing in opposite directions, evolve there; streams move clockwise in the bottom area of the cross section, and in the upper area, stream move counter clockwise (when directions of water flows inside chambers are considered).
The presence of circulatory streams and the diffuser nature of the flow inside spiral chambers of centrifugal pumps and combined pump-chamber units boost uneven distribution of velocities and the loss of pressure inside chambers and trail races.
The loss of energy (pressure) in spiral chambers and trail races of the above machines can be reduced, if the output section of the spiral has the shape of a torus with a central angle φ= 45….55, taken in-between the output section of the spiral and its tooth, while the cross sectional area is equal to the section area calculated as = const or ∙ = const (this section of the spiral is the initial section of the torus).

DOI: 10.22227/1997-0935.2012.2.112 - 116

References
  1. Mihajlov I.E. Turbinnye kamery gidrojelektrostancij [Turbine Chambers of Hydraulic Power Stations]. Moscow, Jenergija, 1970.
  2. Lasenko V.E., Bulgakov V.A., Drankovskij V.Je. Formirovanie potoka v spiral'noj kamere vysokonapornoj radial'no-osevoj gidroturbiny [Flow Formation in a Spiral Chamber of a High-Pressure Radial Axial Turbine]. Gidravlicheskie mashiny [Hydraulic Machines], Har'kov, 1982, Issue # 16, pp. 51—54.
  3. Lasenko V.E. Sravnitel'nyj analiz nekotoryh opytnyh dannyh po issledovaniju techenija v spiral'nyh kamerah gidroturbin [Comparative Analysis of Some Experimental Data within the Framework of Research of Streams Inside Spiral Chambers of Hydraulic Turbines]. Gidravlicheskie mashiny [Hydraulic Machines]. Har'kov, 1983, Issue # 17, pp. 44—47.
  4. Tabakoff, Sheoran, Kroll. Izmerenija parametrov techenija v ulitke turbin. Teoreticheskie osnovy inzhenernyh raschetov [Alteration of Stream Parameters Inside Spirals of Turbines]. Moscow, Mir, 1980, Issue # 3, pp. 113—119.
  5. Hamed, Baskarope. Analiz trehmernogo techenija v ulitke turbiny. Teoreticheskie osnovy inzhenernyh raschetov [Analysis of the Three-Dimensional Stream Inside Spirals of Turbines]. Moscow, Mir, 1980, Issue # 3, pp. 119—124.
  6. Kaufmann J.P. The Dimensioning of Pump-Turbines. Water Power and Dam Constr., 1977, 29, pp. 34—37.
  7. Toyokura T., Akaike S., Kanemoto T. Study on Turbine Flow through Guide Vanes and Stay Vanes for a Reversible Pump-Turbine. 10-th IAHR Symposium, Vol.1, Tokyo, 1980, pp. 353—364; Vol. 2, Tokyo, 1980, pp. 162—164.
  8. ERH-ROHG WU, Staff Engineer (USA) Finite Element Modeling and Flow Prediction for a Spiral Case. 11-th IAHR Symposium, Vol. 3, Amsterdam, 1982.

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SYSTEM OF CONTROL OVER THE CONDITION OF HYDRAULIC ENGINEERING STRUCTURES

Vestnik MGSU 7/2012
  • Bal'zannikov Mikhail Ivanovich - Samara State University of Architecture and Civil Engineering (SSUACE) Doctor of Technical Sciences, Professor, Chair, Department of Environmental Protection and Hydraulic Engineering Structures, Rector, +7 (846) 242-17-84, Samara State University of Architecture and Civil Engineering (SSUACE), 194 Molodogvardeyskaya St., Samara, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ivanov Boris Georgievich - Samara State University of Architecture and Civil Engineering (SSUACE) Doctor of Technical Sciences, Associated Professor, +7 (846) 242-17-84, Samara State University of Architecture and Civil Engineering (SSUACE), 194 Molodogvardeyskaya St., Samara, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mikhasek Andrey Alexandrovich - Samara State University of Architecture and Civil Engineering (SSUACE) Candidate of Technical Sciences, Associated Professor, +7 (846) 242-17-84, Samara State University of Architecture and Civil Engineering (SSUACE), 194 Molodogvardeyskaya St., Samara, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 119 - 124

The problem of potential damage and destruction of constituent parts of hydraulic engineering structures, as well as deterioration of materials in the course of their continuous operation under the impact of natural and climatic factors is considered in the article. Practicability of development and implementation of the control system designated for the monitoring of the condition of hydraulic engineering structures and aimed at prevention of their destruction is under discussion. The authors insist that the safe operation of a hydraulic engineering structure, minimization of its maintenance costs and its negative impact on the environment depend on the step-by-step implementation of the aforementioned system.
Control over a hydraulic engineering facility should be based on advanced information systems capable of monitoring the structure condition in the non-stop mode. The systems should be efficient, reliable, cost-effective, computer-controlled, mobile and intelligent. Concepts of the two types of monitoring systems, an indicative and a representative one, are described in the article.

DOI: 10.22227/1997-0935.2012.7.119 - 124

References
  1. Bal’zannikov M.I. 50 let kafedre prirodookhrannogo i gidrotekhnicheskogo stroitel’stva Samarskoy gosudarstvennoy arkhitekturno-stroitel’noy akademii [50th Anniversary of Department of Environmental Protection and Hydraulic Engineering, Samara State Academy of Architecture and Civil Engineering]. Gidrotekhnicheskoe stroitelstvo [Hydraulic Engineering]. 2003, no. 2, pp. 55—57.
  2. Shabanov V.A., Osipov S.V., Bal’zannikov M.I. Puti povysheniya effektivnosti i nadezhnosti gravitacionnykh plotin iz malocementnogo betona [Methods of Improving the Efficiency and Reliability of Gravity Dams Made of Low Cement Concrete]. Gidrotekhnicheskoe stroitelstvo [Hydraulic Engineering]. 2001, no. 12, pp. 2—7.
  3. Bal’zannikov M.I., Rodionov M.V., Seliverstov V.A. Povyshenie ekologicheskoy bezopasnosti ekspluatiruemykh gruntovykh gidrotekhnicheskikh sooruzhenii [Improvement of Environmental Safety of Earth Hydraulic Structures in Operation]. Vestnik SGASU. Gradostroitelstvo i arkhitektura [Proceedings of SGASU. Urban Construction and Architecture]. 2011, no. 1, pp. 100—105.
  4. Bal’zannikov M.I., Lukenyuk E.V., Lukenyuk A.I. Ekologicheskaya sistema sbora informatsii o sostoyanii regiona [Ecological System of Collection of Data concerning the Condition of the Region]. RF Patent 70026. 2008, Bulletin no. 1.

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AUTOMATED DYNAMIC LOAD CONTROL BY ELECTROMECHANICAL SYSTEMS OF A BUCKET-CHAIN EXCAVATOR IN THE COURSE OF SCOOPING

Vestnik MGSU 7/2012
  • 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 125 - 129

Methods and algorithms of control of the tension of lifting and towing ropes of bucket-chain excavators are proposed in the article. They are based on the non-linear dependence of the current path length and intensity of excavation efforts. Three automatic control modes, including scooping, correction signals and automatic overload protection, are implemented. Two independent control loops in charge of tension of lifting and towing ropes are developed.
The proposed automated control system may be integrated both into new bucket-chain excavators and into those excavators that are already in operation. The new system does not require any substantial alterations in electric drive control systems in charge of lifting and towing, if integrated into excavators in operation.
The author has performed the non-linearity analysis; he has also designed, developed and implemented the models that are capable of taking an adequate account of the system peculiarities identified in the course of the project implementation. The system parameters are adjustable to specific conditions of the excavator operation, including the hardness of the rock extracted by the excavator, etc.
The automatic overload control system attached to the electric drives in control of lifting and towing ensures maximal responsiveness of the system based on the commutation-related limitations imposed by power-driven elements, maximal over-control values and variability of the transition process.
Prevention of any rope slacks in the course of scooping of any hard rock is assured by the loop of regulation of minimal tension of lifting cables.
The service life of lifting and towing ropes goes up by eight to ten weeks, if the system proposed by the author is implemented.

DOI: 10.22227/1997-0935.2012.7.125 - 129

References
  1. Zalesov O.A., Lomakin M.S., Peters G.B. Upravlenie protsessom kopaniya draglayna, regulirovaniem natyazheniya pod”emnykh kanatov [Control over the Process of Digging Performed by the Bucket-chain Excavator through Adjustment of Lifting Cables Tension]. Izvestiya vuzov. Gornyy zhurnal [News of Higher Education Institutions. Mining Journal]. 1975, no. 4.
  2. Lomakin M.S. Avtomaticheskoe upravlenie tekhnologicheskimi protsessami kar’erov [Automated Control over Open Pit Mining Workflows]. Moscow, Nedra Publ., 1978.
  3. Irzhak Yu.M., Kuznetsov V.I. Avtomaticheskiy vybor slabiny pod”emnogo kanata ekskavatoradraglayna [Automated Selection of Tension of the Lifting Cable of a Bucket-chain Excavator]. Izvestiya vuzov. Gornyy zhurnal [News of Higher Education Institutions. Mining Journal]. 1979, no. 6.
  4. Pevzner L.D., Lomakin M.S. Sovremennoe sostoyanie i perspektivy razvitiya sistem elektroprivoda i avtomatizatsii odnokovshovykh ekskavatorov [Present-day Status and Prospects for Development of Systems of Power Drives and Automation of Single-Bucket Excavators]. Moscow, 2000.
  5. Pevzner L.D. Teoriya sistem upravleniya [Theory of Control Systems]. Moscow, MGGU, 2002.
  6. Poderni R.Yu. Mekhanicheskoe oborudovanie kar’erov [Mechanical Equipment of Open Pit Mines]. Moscow, 2007.
  7. Samoylenko A.M. Sistema programmnogo regulirovaniya natyazheniya pod”emnykh i tyagovykh kanatov draglayna [System of Software-based Adjustment of Tension of Lifting and Hauling Cables of a Bucket-chain Excavator]. Gornyy informatsionno-analiticheskiy byulleten’ [Bulletin of Mining Information and Analysis]. Moscow, MGGU, 2011, no. 6.
  8. Lomakin M.S., Romashenkov A.M., Samoylenko A.M. Avtomatizirovannaya sistema upravleniya vzaimodeystviem elektroprivodov pod”ema i tyagi moshchnogo ekskavatora draglayna v protsesse kopaniya [Automated System of Control over Interaction between Electric Drives in Charge of Lifting and Hauling as Part of a High-Capacity Bucket-chain Excavator in the Process of Digging]. Gornyy informatsionno-analiticheskiy byulleten’ [Bulletin of Mining Information and Analysis]. 2006, no. 2.
  9. Khayrullin R.Z., Pevzner L.D., Goryunov V.Yu. Optimal’noe upravlenie dvizheniem kovsha ekskavatora-draglayna [Optimal Control over the Motion Pattern of the Scoop of a Bucket-Chain Excavator]. Institute of Applied Mathematics of the Russian Academy of Sciences, 1998, no. 72.
  10. Khayrullin R.Z. K issledovaniyu manevrennykh vozmozhnostey ekskavatora-draglayna [Analysis of Maneuverability of the Bucket-Chain Excavator]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 4, pp. 49—53.

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