ARCHITECTURE AND URBAN DEVELOPMENT. RESTRUCTURING AND RESTORATION

SPECIAL FEATURES OF THE PROCESS OF RESTORATION OF ARCHITECTURAL MONUMENTS - CULTURAL SYMBOLS OF POWER

Vestnik MGSU 2/2018 Volume 13
  • Chaynikova Olesya Olegovna - St. Petersburg State University of Architecture and Civil Engineering (SPSUACE) postgraduate student, St. Petersburg State University of Architecture and Civil Engineering (SPSUACE), 4 2nd Krasnoarmeyskaya st., St. Petersburg, 190005, Russian Federation.

Pages 170-189

Subject: in this article, we consider the most important problem in modern restorative practice - a restoration of partially destroyed, ruined and even lost buildings that possess high artistic value, constitute the ceremonial residences of European rulers and are now regarded as cultural symbols of their countries. The analysis of assumptions and methods for restoration of residences, palaces and park ensembles is conducted on the example of such objects as the Royal castle in Warsaw, Berlin City Palace, City Palace in Potsdam, Constantine Palace in Strelna, the Royal castle in Lithuania. On the basis of performed analysis of the restored objects, we consider the conceptual proposals for the project of reconstruction of the Lower cottage complex in Alexandria Park in Peterhof town. Research objectives: determine the main criteria for selecting forms and methods for reconstruction of the residences of Heads of State taking into account their value characteristics and criteria of significance, the importance of the reconstructed object in the surrounding environment. Materials and methods: the study was based on the review and analysis of the literature, scientific works, articles, theses, studies of domestic and international authors, analysis of conceptual projects for the restoration of ruined objects that are planned for implementation in the short term. Results: the main methods of restoration of the lost architectural monuments as cultural symbols of power in European and domestic practice are determined, the most typical value characteristics of recreated objects and their significance in the environment and national culture of the country are identified. Conclusions: the result of the work was determination of the main criteria and prerequisites for restoration of residences when selecting the method of their restoration, and determination of significance of the characteristics and importance of already reconstructed buildings. The supposed functional purpose of the monument plays an important role in determining the method of reconstruction. The value of the obtained results lies in their nature: mass character of the global scale activity, and as a consequence, their “vitality”, the relevance to modern society. As part of the development and approval of the optimal solution for reconstruction of the architectural monument, it is advisable to use 3D modeling software, which allows us to thoughtfully and as accurately as possible determine all aspects of the planned action.

DOI: 10.22227/1997-0935.2018.2.170-189

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Deformation-inducedheating of shifted plates having structural defects

Vestnik MGSU 9/2013
  • Moyseychik Evgeniy Alekseevich - Novosibirsk State Universityof Architecture and Civil Engineering (NSUACE (Sibstrin)) Candidate of Technical Sciences, Associate Professor, Doctoral Student, Department of Metal and Wooden Structures, Novosibirsk State Universityof Architecture and Civil Engineering (NSUACE (Sibstrin)), 113 Leningradskaya str., Novosibirsk, 630008, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shafray Sergey Dmitrievich - Novosibirsk State Academy of Architecture and Arts (NGAHA) Doctor of Technical Sciences, Professor, Department of buildig production, Novosibirsk State Academy of Architecture and Arts (NGAHA), 38 Krasnyy prospekt, Novosibirsk, 930099, Russian Federation;; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 7-15

The article is based on the authors’ experimental research into dependence between destruction of plates made of low-carbon structural steel, if loaded along their outer edge by the shearing force, whereby the loading is accompanied by deformationinduced heat generation. The authors provide more accurate data on the influence of patterns of particular structural defects on heat generation and initiation of destruction.The experiments conducted by the authors have proven that structural defects of shifted structural elements cause localization of deformations in the zone of defects, whereas the average temperature of the steel surface in the zone of defects may go up by several dozens of degrees and predetermine initiation and development of the seat of destruction in the place exposed to shear forces.Structural defects of shifted elements of structures cause localization of deformations in the zones of defects, especially in the event of elastoplastic and plastic behaviour of steel, while the average temperature of the steel surface exposed to deformations may increase by several dozens of degrees and pre-determine the pattern for development of destructions.

DOI: 10.22227/1997-0935.2013.9.7-15

References
  1. Volkova V.E., Makarova A.A. Chislennoe modelirovanie napryazhenno-deformirovannogo sostoyaniya balki s gibkoy stenkoy [Numerical Modeling of the Stress-strain State of a Beam Having a Flexible Wall]. Metallicheskie konstruktsii [Metal Structures]. 2011, vol. 17, no. 4, pp. 261—269.
  2. Ostrikov G.M., Maksimov Yu.S. Stal'nye seysmostoykie karkasy mnogoetazhnykh zdaniy [Earthquake-resistant Steel Frames of Multi-storied Buildings]. Kazakhstan, Alma-Ata, 1985, 120 p.
  3. Moyseychik E.A. Issledovanie teploobrazovaniya i zarozhdeniya razrusheniya v stal'noy rastyanutoy plastine s konstruktivno-tekhnologicheskim defektom [Research into Heat Generation and Initial Destruction of a Stretched Steel Plate Having a Structural Defect]. Prikladnaya mekhanika i tekhnicheskaya fizika [Applied Mechanics and Applied Physics]. 2013, no. 1, pp. 134—142.
  4. Wells A.A. The Mechanics of Notch Brittle Fracture. Welding Research, 1953, vol. 7, no. 2, pp. 34—56.
  5. Maugin G.A. The Thermomechanics of Plasticity and Fracture. Cambridge, Cambridge University Press, 1992, 350 p.
  6. Pasternak H., M?ller L. Thermovision — Entwicklung eines neuen Verfahrens zur Dehnungsanalyse beanspruchter Stahlbauteile. Stahlbau, 2002, 71, no. 7, pp. 523—536.
  7. Pasternak H., M?ller L. Untersuchung des thermospastischen Verhaltens verschiedener Baustoffe mit Hilfe der Thermovision. Bauingenieur, 2003, 78, pp. 221—230.
  8. Weichert R., Schoenert K. Heat Generation at the Tip of a Moving Crack. J. Mech. Physics Solids, 1978, no. 26, pp. 151—161.
  9. Shafray S.D., Sergeev A.V. Sinergeticheskiy podkhod k opisaniyu kvazikhrupkogo razrusheniya stal'nykh konstruktsiy [Synergetic Approach to Description of Quasi-fragile Destruction of Steel Structures]. Izv. vuzov. Stroitel'stvo i arkhitektura [News of Institutions of Higher Education. Construction and Architecture] 1990, no. 8, pp. 11—15.
  10. Moyseychik E.A., Shafray S.D. O deformatsionnom teploobrazovanii v elementakh stal'nykh stroitel'nykh konstruktsiy iz nizkouglerodistoy stali [On Deformation-induced Heat Formation in Steel Structures Made of Low-carbon Steel]. Izv. vuzov. Stroitel'stvo. [News of Institutions of Higher Education. Construction] 2012, no. 7/8, pp. 101—109.

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EXPERIMENTAL STUDY OF THE BEARING CAPACITY OF SPATIAL METAL FRAMES

Vestnik MGSU 5/2012
  • Serpik Igor' Naftol'evich - Bryansk State Technological Academy of Engineering Doctor of Technical Sciences, Professor, Chair, Department of Mechanics, Bryansk State Technological Academy of Engineering, 3 Stanke Dimitrov Prospect, Bryansk, 241037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Alekseytsev Anatoliy Viktorovich - Bryansk State Technological University of Engineering (BSTU) Candidate of Technical Sciences, Associate Professor, Department of Construction Operations, Bryansk State Technological University of Engineering (BSTU), 3 prospekt Stanke Dimitrova, Bryansk, 241037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 40 - 44

In the article, the authors describe the principal findings of the experimental study of destruction of spatial frames made of closed-profile steel rods. Six samples of frames were tested through the application of a kinematic loading scheme. Values of forces, displacements and deformations were measured over the time. Each sample was brought to the state when the load reached its maximal value. Thereafter, the load intensity was reduced to 0.6...0.7 of its maximal value. It was identified that the destruction of rods in the event of combined stress was similar to the formation of plastic hinges in the course of regular bending. In some cases, cracks were formed in the zones of plastic hinges. This process did not cause complete destruction of frames.
Destruction-related conditions were also assessed by the quasi-rigidity method implemented in STARK ES 2009 software package. The input data were used to perform failure, bending and torsion tests of steel pipes. The experiments and calculations have proven that in this case the process of destruction can be considered in accordance with the limit equilibrium method by taking account of formation of spatial plastic hinges. The quasi-rigidity method can be employed to identify the maximal load that the frames can bear.

DOI: 10.22227/1997-0935.2012.5.40 - 44

References
  1. János L. Optimal Limit Design of Elasto-Plastic Structures for Time-Dependent Loading. Structural Multidisciplinary Optimization. 2007, vol. 33, pp. 269—273.
  2. Bower A.F. Applied Mechanics of Solids. New York, CRC Press, 2009, 794 р.
  3. Tin-Loi F. Plastic Limit Analysis of Flat Frames and Grids Using GAMS. Computers and Structures. 1995, vol. 54, pp. 15—25.
  4. Rutman Yu.L., Semenov V.A., Lebedev V.L. Primenenie metoda psevdozhestkostey dlya analiza predel’nykh sostoyaniy konstruktsiy [Application of the Method of Pseudo-stiffness in the Analysis of Limit States of Structures]. Stroitel’naya mekhanika i raschet sooruzheniy [Structural Mechanics and Analysis of Structures]. 2007, no. 6, pp. 68—72.
  5. Serpik I.N., Alekseytsev A.V. Raschet prostranstvennykh sterzhnevykh sistem metodom predel’nogo ravnovesiya [Calculation of Spacial Rod Systems by the Limit Equilibrium Method]. Matematicheskoe modelirovanie v mekhanike deformiruemykh tel i konstruktsiy. Metody granichnykh i konechnykh elementov. [Mathematical Modeling in Mechanics of Solids and Structures. Methods of Boundary and Finite Elements]. Proceedings of the 27th International Conference. St.Petersburg, SPBGASU [St.Petersburg State University of Architecture and Civil Engineering]. 2011, pp. 104.
  6. Serpik I.N., Alekseytsev A.V., Gusakov A.N. Ustanovka dlya ispytaniy na izgib s krucheniem sterzhnevykh obraztsov. [Stand for Bending and Torsion Testing of Sample Rods]. Pat. 2406992, RF, MPK G01N 3/20 Bull. no. 35 of 20.12.2010, 4 p.
  7. Serpik I.N., Alekseytsev A.V., Gusakov A.N. Eksperimental’no-teoreticheskie issledovaniya protsessa obrazovaniya plasticheskikh sharnirov v sterzhnyakh korobchatogo secheniya pri slozhnom soprotivlenii [Experimental and Theoretical Study of the Process of Formation of Plastic Hinges in Box Section Rods in the event of Combined Stress]. Traditsii i innovatsii v stroitel’stve [Traditions and Innovations in construction]. Proceedings of the 67th All-Russian Scientific and Technical Conference. Samara, SGASU [Samara State University of Architecture and Civil Engineering]. 2010, pp. 131—133.

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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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Trenchless renovation of worn-out pipelines through their prior destruction and dragging new polymer pipes in place of the old

Vestnik MGSU 7/2014
  • 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 .
  • 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 .
  • Gureeva Irina Sergeevna - Moscow State University of Civil Engineering (MGSU) student, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-36-29; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 101-109

The authors present an analysis of effective methods of trenchless renovation of worn-out pipelines for water supply and wastewater disposal systems by means of prior destruction and dragging the new polymer pipes in the free space. The analysis of the devices for the destruction of the pipeline by trenchless methods, which include the pneumatic hammers, the wideners, petal cutters of various designs, is given. The article describes the conditions for application of different types of devices for destruction of pipelines, in particular, the range of destructible diameters and ROP. A fundamental condition for the effective work on the destruction of old pipes and dragging polymer and other pipes is the correct selection of conical reamers (their length and material, the angle of approach, the presence and number of cutting blades of a certain form, blades, etc.). Depending on the type of pipe (the strength of the wall) can be used to smooth the lead-in part of extenders or equipped with cutting lengthwise or roller blades. Tips-chopping knives, regardless of their design differences act like a can opener, slitting line into two or more parts and then pressing them into the surrounding soil and ensuring the free passage of the new extender conical pipes. The average speed of movement with destructive tip is about 80 m/h. A speed reduction is observed only when passing through the tip of the screw connections of the pipes. The work on restoration of old pipe sections shall be conducted in accordance with technological regulations, including preparations, which include inspection, skipping rope, winch procleaning, etc.), the main (construction) and final (dismantling) work that are associated with all stages of the process of the destructing the old and dragging a new pipeline. Particular attention is paid to foreign experience of trenchless renovation for steel pipes with couplings roller blades. The authors present the characteristics of renovation, approaches to the destruction of the old pipeline, in particular, the tests to assess the effectiveness of cutting pipe cutting devices. The technical process indicators are offered.

DOI: 10.22227/1997-0935.2014.7.101-109

References
  1. Khramenkov S.V. Strategiya modernizatsii vodoprovodnoy seti [Strategy of Modernization of Water Supply Networks]. Moscow, Stroyizdat Publ., 2005, 398 p.
  2. Khramenkov S.V., Primin O.G., Otstavnov A.A. Ispol'zovanie polietilenovykh trub dlya sistem vodosnabzheniya i vodootvedeniya [Use of Polyethylene Pipes for Water Supply and Sanitation]. Moscow, Sovremennaya poligrafiya Publ., 2010, 318 p.
  3. Rybakov A.P. Osnovy bestransheynykh tekhnologiy [Basics of Trenchless Technologies]. Moscow, PressByuro Publ., 2005, 304 p.
  4. Khramenkov S.V., Orlov V.A., Khar'kin V.A. Optimizatsiya vosstanovleniya vodootvodyashchikh setey [Optimization of Gravity Networks Restoration]. Moscow, Stroyizdat Publ., 2002, 160 p.
  5. Kuliczkowski A., Kuliczkowska E., Zwierzchowska A. Technologie beswykopowe w inzeynierii srodowiska. Wydawnictwo Seidel-Przywecki Sp., 2010, 735 p.
  6. Otstavnov A.A., Orlov E.V., Khantaev I.S. Pervoocherednost' vosstanovleniya truboprovodov vodosnabzheniya i vodootvedeniya [Priority Order of pipeline rehabilitation of water supply and sewerage]. Stroitel'nyy inzhiniring [Journal of Construction Engineering]. 2007, no. 10, pp. 44—49.
  7. Zwierzchowska A. Technologie bezwykopowej budowy sieci gazowych, wodociagowych i kanalizacyjnych. Politechnika swietokrzyska. 2006, 180 p.
  8. Rameil M. Handbook of Pipe Bursting Practice. Vulkan verlag, 2007, 351 p.
  9. Otstavnov A.A. Sovremennye materialy i tekhnologii dlya realizatsii zadach reformy ZhKKh [Modern Materials and Technologies to Achieve the Objectives of Housing Reform]. Santekhnika [Journal of Plumbing]. 2004, no. 4, pp. 2—4.
  10. Goncharenko D.F., Korin'ko I.V. Remont i vosstanovlenie kanalizatsionnykh setey [Repairs and Reconstruction of Sewage Systems]. Khar'kov, Rubikon Publ., 1999, 364 p.
  11. Beloborodov V.N., Li A.N., Emelin V.I. Otechestvennye bestransheynye tekhnologii vosstanovleniya truboprovodov [Native Trenchless Technologies of Pipeline Reconstruction]. Krasnoyarsk, SFU Publ., 2010, 192 p.
  12. Baklashov I.V., Kartoziya B.A. Mekhanika podzemnykh sooruzheniy i konstruktsii krepey [Mechanical Design of Underground Structures and Shoring]. Moscow, Nedra Publ., 1992, 257 p.
  13. Khar'kin V.A. Sistematizatsiya i analiz patologiy vodootvodyashchikh setey, podlezhashchikh vosstanovleniyu [Systematization and Analysis of Drainage Networks Pathologies to be Restored]. ROBT [Russian Association on Trenchless Technologies Implementation]. 2001, no. 2, pp. 13—25.
  14. Zwierzchowska A. Optymalizacja doboru metod bezwykopowej budowy. Politechnika swietokrzyska. 2003, pp. 16—19.
  15. Brahler C. City of Helena. California Rutherford 12-inch Diameter Water Pipeline Rehabilitation. Sydney, Australia, NO-DIG, 2013. Available at: http://www.norcalpug.com/nu_upload/Paper_1.pdf. Date of access: 20.12.2013.

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Trophic chain and sea environment self-cleaning factors

Vestnik MGSU 5/2014
  • Pogorel'tsev Yuriy Romanovich - Sochi State University (SSU) postgraduate student, Department of Real Estate Inspection and Management, Sochi State University (SSU), 26 a Sovetskaya Str., Sochi, 354000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shevtsov Viktor Sergeevich - Sochi State University (SSU) Candidate of Technical Sciences, Professor, Head, Department of Real Estate Inspection and Management, Sochi State University (SSU), 26 a Sovetskaya Str., Sochi, 354000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 119-126

This article considers the main aspects of the process of self-purification in the marine environment. It describes mechanics of biogenic elements of the marine environment in the process of production and destruction of autochthonous and allochthonous organic matter. This article discusses organics and flows of energy, which migrate to the trophic chain of the marine environment in the process of self-purification. And it shows the individual elements of the process of self-purification in the marine environment and the factors influencing it. In the article it is noted that self-cleaning of water environment happens due to the cycling of matter in the pond. It is emphasized that tension, focus and self-purification completeness are regulated by biotic turnover and energy turnover, which is determined by the type of limnological type of reservoir, geographical features (climate conditions), geophysical and anthropogenic impacts. The article notes that the more diverse system of organisms is, the fuller the compounds’ decay is. This property of organisms to complement each other is called buffering of the system. Complex system of organisms cope better with organic and bacterial contamination, but is less responsive to insertion nutrients; biotic cycle in complex systems is more intense. Bacterial community plays the major role in the process of self-purification of biological marine environments. They are the major element of the coastal zone ecosystems. This article shows that during the growth of bacterial populations most of the energy supplied to the aquatic ecosystems with auto- and allochthonous organic matter is processed. The bacteria prepare the conditions for the development of other organisms of water biocenosis. Concentration of the organic substrate regulates the growth rate of bacteria. Bacterial self-cleaning depends on the total number of microorganisms or their separate groups, locally contained in the marine environment.

DOI: 10.22227/1997-0935.2014.5.119-126

References
  1. Sinel'nikov V.E. Mekhanizm samoochishcheniya vodoemov [Mechanism of Basins Self Purification]. Moscow, Stroyizdat Publ., 1980, 64 p.
  2. Pogoreltsev Yu.R., Mishin S.V. The Theoretical Aspects of the Sea Self-purification Processes` Intensification and the Technological Islands` Complexes Designing by the Black Sea Coast. Science, Technology and Higher Education: Materials of the III International Research and Practice Conference. Canada, Westwood, 2013, vol. 2, pp. 468—475. ISBN 978-1-77192-013-1. Available at: http://science-canada.com/10-2013-2.pdf.
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RESEARCHES OF WORKING LIFE OF FOAM POLYSTYRENE OF BUILDING APPOINTMENT

Vestnik MGSU 1/2012
  • Guyumdzhjan Perch Pogosovich - Ivanovo Institute of State Fire Fighting Service of Emergency Control Ministry of Russia Doctor of Technical Sciences, Ivanovo Institute of State Fire Fighting Service of Emergency Control Ministry of Russia, .
  • Kokanin Sergey Vladimirovich - Ivanovo Institute of State Fire Fighting Service of Emergency Control Ministry of Russia The teacher of Chair Fire preventive maintenance UNK "The State fire supervision" +7-(960)-513-34-24, Ivanovo Institute of State Fire Fighting Service of Emergency Control Ministry of Russia, 33, pr. Builders, Ivanovo, 153040; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Tsybakin Sergey Valerievich - Kostroma State Agricultural Academy (KSAA) Candidate of Technical Sciences, Associate Professor, Dean of the Faculty of Architecture and Civil Engineering, Kostroma State Agricultural Academy (KSAA), 34 Uchebniy gorodok, Karavaevo poselok, Kostroma oblast, 156530, Russian Federation.

Pages 88 - 93

Results of experimental researches of physicomechanical properties of foam polystyrene thermal insulation materials are presented in article. The operational resource was defined on materials subject to ageing, action of liquid excited environments and atmospheric impacts. The destructive processes leading to destruction of foam polystyrene are revealed.

DOI: 10.22227/1997-0935.2012.1.88 - 93

References
  1. Problemy i perspektivy primenenija penopolistirola v stroitel'stve (Informacija) [Problems and prospects of application of foam polystyrene in construction (Information)]. Stroitel'nye materialy [Building materials], 2011, ¹ 3, Pp. 68—69.
  2. Itogi kruglogo stola «Problemy i perspektivy primenenija penopolistirola v stroitel'stve» [The results of the round table "Problems and prospects of application of foam polystyrene in construction"]. RAABS. URL: http://www.raasn.ru.
  3. Pena dnej [Foam of days]. Stroitel'nyj jekspert [Construction expert]. 2011. no 3-4 (315). Pp. 13—15.

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