ARCHITECTURE AND URBAN DEVELOPMENT. RESTRUCTURING AND RESTORATION

MODELLING THE PROPERTIES OF ELLIPTICITY: LINEAR VARIATIONS

Vestnik MGSU 8/2012
  • Polezhaev Yuriy Olegovich - Moscow State University of Civil Engineering Associated Professor, Department of Descriptive Geometry and Graphics 8 ( 499) 183-24-83, Moscow State University of Civil Engineering, 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Borisova Anzhelika Yurevna - Moscow State University of Civil Engineering Candidate of Technical Sciences, Associated Professor, Department of Descriptive Geometry and Graphics 8 (499) 183-24-83, Moscow State University of Civil Engineering, 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 34 - 38

The authors discuss some of the properties of linear variations of ellipticity within the framework
of planimetry. Six elliptic models were constructed through the employment of geometrography-
related methods: an ellipse interrelated with the (i) golden proportion and a (ii) focal plane
rectangle; (iii) a constant of the perimetry of the focal diamond; (iv) compression of the base circle
in the axial direction (y); (v) differential straight lines of the moving point of an ellipse; (vi) compass
incidence, a composition of transformations of the shift and homothety.
Characteristic lines that run in the neighborhood of some point of the ellipse are demonstrated.
The characteristic lines in question include those that can be employed as part of various composite
solutions related to the fragments of structures being constructed.
A set of closed polygons and curves with selected lines passing through the characteristic
points of the circle squaring - these are the geometrographic structures that can form the basis of
composite solutions to the problem of design. The authors also believe that the properties employed
by the golden mean increase the aesthetic constituent of the solution.

DOI: 10.22227/1997-0935.2012.8.34 - 38

References
  1. Gil’bert D., Kon-Fossen S. Naglyadnaya geometriya [Visual Geometry]. Moscow, Nauka Publ., 1951.
  2. Polezhaev Yu.O. Ratsional’nye proportsii arkhitekturno-stroitel’nykh ob”ektov v proektsionnoy geometrii [Rational Proportions of Architectural Structures in Projective Geometry]. Moscow, ASV Publ., 2010.
  3. Gil’bert D. Osnovaniya geometrii [Basics of Geometry]. Moscow, OGIZ Publ., 1948.
  4. Korn G. Spravochnik po matematike [Reference Book of Mathematics]. Moscow, Nauka Publ., 1974.
  5. Saprykina N.A. Osnovy dinamicheskogo formoobrazovaniya v arkhitekture [Fundamentals of Dynamic Shaping in the Architecture]. Moscow, Arkhitektura-S Publ., 2005.

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REINFORCING FIBRES AS PART OF TECHNOLOGY OF CONCRETES

Vestnik MGSU 4/2012
  • Zhukov Aleksey Dmitrievich - Moscow State University of Civil Engineering (MSUCE) C andidate o f Technical S ciences, A ssociated P rofessor, D epartment of Technology of Finishing and Insulating Materials, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoeshosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rudnitskaya Viktoriya Aleksandrovna - Moscow State University of Civil Engineering (MSUCE) master student, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Smirnova Tat'yana Viktorovna - Moscow State University of Civil Engineering (MSUCE) ROCKWOOL postgraduate student Leading Specialist, Moscow State University of Civil Engineering (MSUCE) ROCKWOOL, 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 160 - 164

Methods of modification of the foamed fibre concrete technology and optimization of its parameters within the framework of methodologies of new construction materials developed by the specialists of Department of Technology of Finishing and Insulation Materials of MSUCE is considered in the paper. The methodology of highly porous materials is based on the research and modeling of their structure, and optimization of the process of their manufacturing. The core constituent of the proposed methodology is the identification of the markets for the designed products, as well as the pre-setting of their properties and assurance of their stability over the time.
The foamed fibre concrete technology represents modified procedures of preparation of the foam, the mineral component, and the basalt fiber, the blending of the components, their casting and heat treatment. The process-related parameters were subjected to double-staged analysis: Stage 1 represented an experiment encompassing the whole process. As a result of the experiment, factors of major impact (or control parameters) were identified. At Stage 2, factorial experiment was conducted to identify second-order mathematical dependencies. The results were subjected to analytical optimization, and graphical representation of dependencies was performed. Selection of the composition and optimal process parameters was performed with the help of G-BAT-2011 software programme developed at MSUCE.
It was identified that the basalt fibre consumption rate influences both the strength and the density of products made of cellular concrete. The length of the basalt fibre impacts the strength of products. A nomogram was developed to identify the consumption rate of the basalt fibre driven by the strength of products and the Portland cement consumption rate. The authors also studied the influence of the consumption rate of Portland cement and basalt fibre onto the structural quality ratio of the foamed fibre concrete.

DOI: 10.22227/1997-0935.2012.4.160 - 164

References
  1. Zhukov A.D., Chugunkov A.V. Rudnitskaya V.A. Reshenie tehnologicheskikh zadach metodami matematicheskogo modelirovaniya [Resolution of Technology-related Problems by Methods of Mathematical Modeling]. Moscow, MSUCE, 2011, 176 p.
  2. Zhukov A.D., Chugunkov A.V. Lokal'naya analiticheskaya optimizatsiya tehnologicheskikh protsessov [Local Analytical Optimization of Technology-related Processes]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 1, vol. 2, pp. 273—278.

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DATA STRUCTURE MODELING: ATTRIBUTES OF INFORMATION OBJECTS IN CONSTRUCTION MODELING

Vestnik MGSU 4/2012
  • Malyha Galina Gennad'evna - Moscow State University of Civil Engineering (MSUCE) , Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Sinenko Sergey Anatol'evich - Moscow State University of Civil Engineering (MSUCE) , Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Vaynshteyn Mihail Semenovich - Moscow State University of Civil Engineering (MSUCE) , Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Kulikova Ekaterina Nikolaevna - Moscow State University of Civil Engineering (MSUCE) , Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 226 - 230

The paper considers the method of data structure modeling. A lot of attention is driven to attributes
to be implemented in information objects. The structure is to be formed in the following way: semantic
attributes, commercial attributes, executive attributes, organizational attributes, service attributes.
Characteristics of each type of attributes are described in details.
For example, the name of the document, its content, the list of enclosures, the language of the
document represent semantic attributes.
Commercial attributes are the attributes that cannot be defined as semantic ones. For instance,
the account number, its date, sum, currency, indices reflect the degree of complexity, the
current scope of work performed, etc.
Executive attributes represent the process of the document execution, or its coordination between
the parties involved in the construction process.
Organizational attributes may indicate the registration date, the document version, privileges
of users, etc.
Service attributes are used to keep, to copy and to archive documents. For instance, file
name, file format, place of storage, etc.
The proposed data structure can be implemented in the development of integrated information
systems.

DOI: 10.22227/1997-0935.2012.4.226 - 230

References
  1. Malykha G.G. Nauchno-metodologicheskie osnovy avtomatizatsii proektirovaniya v mezhdunarodnykh stroitel'nykh proektakh [Scientific and Methodological Principles of Computer-aided Design of International Construction Projects]. Moscow, Moscow State University of Civil Engineering (MSUCE), 1999, 299 p.
  2. Pavlov A.S. Nauchnye osnovy peredachi informatsii i raspoznavaniya ob’ektov v sistemakh stroitel'nogo proektirovaniya [Scientific Principles of Information Transmission and Object Recognition in Construction-related Computer-aided Design Systems]. Moscow, Moscow State University of Civil Engineering (MSUCE), 2003, 357 p.
  3. Vaynshteyn M.S. Metodologiya mnogofunktsional'noy avtomatizatsii poelementno-invariantnogo proektirovaniya zdaniy i sooruzheniy [Methodology of Multifunctional Automation of Per-element and Invariant Design of Structures and Buildings]. Moscow, Moscow State University of Civil Engineering (MSUCE), 2005, 377 p.

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MODEL OF SYNTHESIS OF A HARDWARE AND SOFTWARE SYSTEM DESIGNATED FOR AN INTELLIGENT OFFICE BUILDING

Vestnik MGSU 6/2012
  • Ogirenko Andrey Grigor'evich - Naftam-INPRO Joint Stock Company Candidate of Technical Sciences, Director of Department, +7 (495) 228-77-00, Naftam-INPRO Joint Stock Company, Building 1, 4 Yakimanskaya Embankment, Moscow, 119180, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 48 - 53

The problem of synthesis of technology-intensive constituents of an intelligent office system, implemented in advanced office buildings, is the subject matter of this article. On the basis of the proposed classification and the analysis performed by the author, the general structure of the multilevel distributed system, that has radial treelike lines of communications, is developed. The structure of the intelligent office system designated for advanced real estate facilities represents an integration of two structures, including the functional constituent and the hardware constituent. The model of optimization of the hardware constituent is proposed by the author. The article also contains an overview of the model implementation within the framework of a set of intelligent buildings in the centre of Moscow.

DOI: 10.22227/1997-0935.2012.6.48 - 53

References
  1. Mesarovich M., Takakhara Ya. Obshchaya teoriya sistem: matematicheskie osnovy [General Systems Theory: Mathematical Foundations]. Moscow, Mir Publ., 1978.
  2. Buslenko N.P. Modelirovanie slozhnykh system [Modeling of Composite Systems]. Moscow, Nauka Publ., 1978.
  3. Tsvirkun A.D. Struktura slozhnykh system [Structure of Composite Systems]. Moscow, Sovetskoe Radio Publ., 1975.
  4. Ogirenko A.G. Prikladnye modeli ekonometriki. Mezhdunarodnyy forum informatizatsii MFI-93. Vsemirnyy kongress ITS-93 «Informatsionnye kommunikatsii, seti, sistemy i tekhnologii» [Applied Models of Econometrics. International Forum of Informatization MFI-93. World Congress ITS-93. Information Communication, Networks, Systems and Technologies]. Moscow, 1993.
  5. Ogirenko A.G., Smirnov M.I. Reshenie ekologicheskikh voprosov pri sokhranenii i reabilitatsii arkhitekturnogo kompleksa zdaniy tekstil'noy fabriki v istoricheskom tsentre Moskvy [Resolution of Ecological Problems as part of Conservation and Rehabilitation of Buildings of the Textile Factory in the Historic Centre of Moscow]. Ekologicheskie sistemy i pribory, 2009, no. 9.

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Plastic deformation and fracture of masonry under biaxial stresses

Vestnik MGSU 2/2016
  • Kabantsev Oleg Vasil’evich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Professor, Department of Reinforced Concrete and Masonry Structures, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 34-48

Masonry is a complex multicomponent composite composed of dissimilar materials (brick / stone and mortar). The process of masonry deformation under load depends on the mechanical characteristics of the basic composite materials, as well as of the parameters belonging to the elements, which define the link between brick and mortar being the structural elements. The paper provides an analysis of the experimental study results of masonry behaviour in two-dimensional stress state at primary stresses of opposite signs; identifies the mechanisms of masonry failure that are in compliance with the conditions of stress state. The work shows the key role that structural elements play in the formation of masonry failure processes. On the basis of failure mechanisms educed from the experiments, there was developed a discrete model of masonry. The processes and the corresponding strength criteria, which play a key role in the implementation of plastic deformation phase, have been detected. It has been shown that the plastic deformation of masonry under biaxial stresses occurs in case of the physical linear behavior of the basic materials (brick and mortar). It has been also substantiated that the plastic properties of masonry under biaxial stresses are determined by the processes occurring at the contact interaction nodes between brick and mortar in bed and cross joints. The values of the plasticity coefficients for masonry depending on the mechanical properties of a brick, a mortar and adhesive strength in their interaction have been obtained basing on the results of the performed numerical investigations.

DOI: 10.22227/1997-0935.2016.2.34-48

References
  1. Geniev G.A. O kriterii prochnosti kamennoy kladki pri ploskom napryazhennom sostoyanii [On the Strength Criteria of Masonry with Plane Stress State]. Stroitel’naya mekhanika i raschet sooruzheniy [Structural Mechanics and Analysis of Constructions]. 1979, no. 2, pp. 7—11. (In Russian)
  2. Tyupin G.A. Deformatsionnaya teoriya plastichnosti kamennoy kladki [Deformational Theory of Masonry Plasticity]. Stroitel’naya mekhanika i raschet sooruzheniy [Structural Mechanics and Analysis of Constructions]. 1980, no. 6, pp. 28—30. (In Russian)
  3. Polyakov S.V., Safargaliev S.M. Monolitnost’ kamennoy kladki [Monolithic Masonry]. Alma-Ata, Gylym, 1991, 160 p. (In Russian)
  4. Kashevarova G.G., Ivanov M.L. Naturnye i chislennye eksperimenty, napravlennye na postroenie zavisimosti napryazheniy ot deformatsiy kirpichnoy kladki [Full-scale and Numerical Experiments to Create the Dependencies of Stresses from Masonry Deformations]. Privolzhskiy nauchnyy vestnik [Volga Region Scientific Proceedings]. 2012, no. 8, pp. 10—15. (In Russian)
  5. Kashevarova G.G., Zobacheva A.Yu. Modelirovanie protsessa razrusheniya kirpichnoy kladki [Modeling the Fracture Process of Masonry]. Vestnik Permskogo natsional’nogo issledovatel’skogo politekhnicheskogo universiteta. Stroitel’stvo i arkhitektura [Perm National Research Polytechnic University Bulletin. Construction and Architecture]. 2010, no. 1, pp. 106—116. (In Russian)
  6. Grishchenko A.I., Semenov A.S., Semenov S.G., Melnikov B.E. Influence of Structural Parameters of the Masonry on Effective Elastic Properties and Strength. Inzhenerno-stroitel’nyy zhurnal [Magazine of Civil Engineering]. 2014, no. 5, pp. 95—106. (In Russian)
  7. Derkach V.N. Anizotropiya prochnosti na rastyazhenie kamennoy kladki pri raskalyvanii [Anisotropy of Tensile Strength of Masonry in Case of Cleaving]. Nauchno- tekhnicheskie vedomosti SPbGPU [St. Petersburg State Polytechnical University Journal]. 2012, no. 147-2, pp. 259—265. (In Russian)
  8. Schubert P., Bohene D. Schubfestigkeit von Mauerwerk aus Leichtbetonsteinen. Das Mauerwerk. Ernst & John, 2002, vol. 6, no. 3, pp. 98—102.
  9. Capozucca R. Shear Behaviour of Historic Masonry Made of Clay Dricks. The Open Construction and Building Technology Journal. 2011, no. 5. (Suppl 1-M6), pp. 89—96. DOI: http://dx.doi.org/10.2174/1874836801105010089.
  10. Sousa R., Sousa H., Guedes J. Diagonal Compressive Strength of Masonry Samples — Experimental and Numerical Approach. Materials and Structures. 2013, vol. 46, pp. 765—786. DOI: http://dx.doi.org/10.1617/s11527-012-9933-z.
  11. Calio I., Marletta M., Panto B. A New Discrete Element Model for the Evaluation of the Seismic Behaviour of Unreinforced Masonry Buildings. Engineering Structures. 2012, no. 40, pp. 327—338. DOI: http://dx.doi.org/10.1016/j.engstruct.2012.02.039.
  12. Mohebkhah A., Tasnimi A.A. Distinct Element Modeling of Masonry-Infilled Steel Frames with Openings. The Open Construction and Building Technology Journal. 2012, no. 6 (Suppl 1-M2), pp. 42—49. DOI: http://dx.doi.org/10.2174/1874836801206010042.
  13. Kabantsev O.V. Diskretnaya model’ kamennoy kladki v usloviyakh dvukhosnogo napryazhennogo sostoyaniya [Discrete Model of Masonry under Biaxial Stresses]. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta [Vestnik Tomsk State University of Architecture and Building]. 2015, no. 4 (51), pp. 113—134. (In Russian)
  14. Kabantsev O.V., Tamrazyan A.G. Modelirovanie uprugo-plasticheskogo deformirovaniya kamennoy kladki v usloviyakh dvukhosnogo napryazhennogo sostoyaniya [Modeling Elastoplastic Deformation of Masonry under Biaxial Stresses]. International Journal for Computational Civil and Structural Engineering. 2015, no. 3, vol. 11, pp. 87—100. (In Russian)
  15. Vil’deman V.E., Sokolkin Yu.V., Tashkinov A.A. Mekhanika neuprugogo deformirovaniya i razrusheniya kompozitsionnykh materialov [Mechanics of Inelastic Deformation and Destruction of Composite Materials]. Moscow, Nauka. Fizmatlit Publ., 1997, 288 p. (In Russian)
  16. Burago N.G. Modelirovanie razrusheniya uprugoplasticheskikh tel [Modelling of Elastoplastic Bodies Destruction]. Vychislitel’naya mekhanika sploshnykh sred [Computational Continuum Mechanics]. 2008, vol. 1, no. 4, pp. 5—20. (In Russian)
  17. Trusov P.V. Nekotorye voprosy nelineynoy mekhaniki deformiruemogo tverdogo tela (v poryadke obsuzhdeniya) [Some Problems of Nonlinear Mechanics of Solids (In the Form of Discussion)]. Vestnik Permskogo natsional’nogo issledovatel’skogo politekhnicheskogo universiteta. Mekhanika [Perm National Research Polytechnic University Bulletin. Mechanics]. 2009, Vol. 17, pp. 85—95. (In Russian)
  18. Kabantsev O.V., Karpilovskiy V.S., Kriksunov E.Z., Perel’muter A.V. Tekhnologiya raschetnogo prognoza napryazhenno-deformirovannogo sostoyaniya konstruktsiy s uchetom istorii vozvedeniya, nagruzheniya i deformirovaniya [Technology of Computational Prediction of Stress-Strain State of Constructions Taking into Account the History of Erecting, Loading and Deformation]. International Journal for Computational Civil and Structural Engineering. 2011, no. 3, vol. 7, pp. 110—117. (In Russian)
  19. Kopanitsa D.G., Kabantsev O.V., Useinov E.S. Eksperimental’nye issledovaniya fragmentov kirpichnoy kladki na deystvie staticheskoy i dinamicheskoy nagruzki [Experimental Researches of Masonry Fragments on the Effect of Static and Dynamic Loads]. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta [Vestnik Tomsk State University of Architecture and Building]. 2012, no. 4, pp. 157—178. (In Russian)
  20. Il’yushin A.A. Mekhanika sploshnoy sredy [Continuum Mechanics]. Moscow, Izdatel’stvo Moskovskogo universiteta Publ., 1978, 287 p. (In Russian)
  21. Parton V.Z., Morozov E.M. Mekhanika uprugoplasticheskogo razrusheniya. Osnovy mekhaniki razrusheniya [Mechanics of Elastic-Plastic Destruction. Fundamentals of Destruction Mechanics]. 3rd edition, revised. Moscow, LKI Publ., 2008, 352 p. (In Russian)
  22. Sokolov B.S., Antakov A.B. Rezul’taty issledovaniy kamennykh i armokamennykh kladok [The Results of Masonry and Reinforced Masonry Research]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2014, no. 3, pp. 99—106. (In Russian)
  23. Tonkikh G.P., Kabantsev O.V., Simakov O.A., Simakov A.B., Baev S.M., Panfilov P.S. Eksperimental’nye issledovaniya seysmousileniya kamennoy kladki naruzhnymi betonnymi applikatsiyami [Experimental Researches of Seismic Reinforcement of Masonry by Exterior Concrete Applications]. Seysmostoykoe stroitel’stvo. Bezopasnost’ sooruzheniy [Earthquake Engineering. Constructions Safety]. 2011, no. 2, pp. 35—41. (In Russian)
  24. Pangaev V.V., Albaut G.I., Fedorov A.V., Tabanyukhova M.V. Model’nye issledovaniya napryazhenno-deformirovannogo sostoyaniya kamennoy kladki pri szhatii [Model Research of the Stress-Strain State of Masonry in Case of Compression]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2003, no. 2, pp. 24—29. (In Russian)
  25. Kabantsev O.V. Deformatsionnye svoystva kamennoy kladki kak raznomodul’noy kusochno-odnorodnoy sredy [Deformation Properties of Masonry as the Multimodulus Piecewise Homogeneous Continua]. Seysmostoykoe stroitel’stvo. Bezopasnost’ sooruzheniy [Earthquake Engineering. Constructions Safety]. 2013, no. 4, pp. 36—40. (In Russian)
  26. Popov N.N., Rastorguev B.S. Dinamicheskiy raschet zhelezobetonnykh konstruktsiy [Dynamic Calculation of Reinforced Concrete Constructions]. Moscow, SI Publ., 1974, 207 p. (In Russian)
  27. Karpilovskiy V.S., Kriksunov E.Z., Malyarenko A.A., Mikitarenko M.A., Perel’muter A.V., Perel’muter M.A. SCAD Office. Versiya 21. Vychislitel’nyy kompleks SCAD++ [SCAD Office. Version 21. Computer Complex SCAD++]. Moscow, SKAD SOFT Publ., 2015, 808 p. (In Russian)

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FOAM CONCRETE REINFORCEMENT BY BASALT FIBRES

Vestnik MGSU 6/2012
  • Zhukov Aleksey Dmitrievich - Moscow State University of Civil Engineering (MSUCE) Candidate of Technical Sciences, Professor, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rudnitskaya Viktoriya Aleksandrovna - Moscow State University of Civil Engineering (MSUCE) master student, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 83 - 87

The authors demonstrate that the foam concrete performance can be improved by dispersed reinforcement, including methods that involve basalt fibres. They address the results of the foam concrete modeling technology and assess the importance of technology-related parameters. Reinforcement efficiency criteria are also provided in the article.
Dispersed reinforcement improves the plasticity of the concrete mix and reduces the settlement crack formation rate. Conventional reinforcement that involves metal laths and rods demonstrates its limited application in the production of concrete used for thermal insulation and structural purposes. Dispersed reinforcement is preferable. This technology contemplates the infusion of fibres into porous mixes. Metal, polymeric, basalt and glass fibres are used as reinforcing components.
It has been identified that products reinforced by polypropylene fibres demonstrate substantial abradability and deformability rates even under the influence of minor tensile stresses due to the low adhesion strength of polypropylene in the cement matrix.
The objective of the research was to develop the type of polypropylene of D500 grade that would demonstrate the operating properties similar to those of Hebel and Ytong polypropylenes. Dispersed reinforcement was performed by the basalt fibre. This project contemplates an autoclave-free technology to optimize the consumption of electricity. Dispersed reinforcement is aimed at the reduction of the block settlement in the course of hardening at early stages of their operation, the improvement of their strength and other operating properties. Reduction in the humidity rate of the mix is based on the plasticizing properties of fibres, as well as the application of the dry mineralization method.
Selection of optimal parameters of the process-related technology was performed with the help of G-BAT-2011 Software, developed at Moscow State University of Civil Engineering. The authors also provide their overview of intellectual property rights and an economic efficiency assessment.

DOI: 10.22227/1997-0935.2012.6.83 - 87

References
  1. Novitskiy A.G., Efremov M.V. Volokno iz gornykh porod dlya armirovaniya betonov [Rock Fibres Designated for Concrete Reinforcement]. Proceedings of the 7th All-Russian Scientific and Practical Conference in Belokurikha. Moscow, Khimmash Publ., 2007, pp. 116—120.
  2. Sakharov G.P., Strebitskiy V.P., Voronin V.A. Novaya effektivnaya tekhnologiya neavtoklavnogo porobetona [New Effective Technology of the Autoclave-Free Concrete]. Stroitel’nye materialy i obrudovanie tekhnologii XX veka [Building Materials and Equipment Technologies of the 20th Century]. 2002, no. 6, pp. 28—29.
  3. Zhukov A.D., Chugunkov A.V. Lokal’naya analiticheskaya optimizatsiya tekhnologicheskikh protsessov [Local Analytical Optimization of Technology-related Processes]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 4, pp. 273—279.

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Geo-enviromental monitoring system of the oil storages on petrol stations

Vestnik MGSU 3/2014
  • Shimenkova Anastasiya Anatol'evna - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Head, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 212-219

In large cities, fuel consumption is growing rapidly, and therefore the number of filling stations. And they are a source of anthropogenic impact on the environment and represent current scientific and practical task, because recently no research was conducted into the optimization of monitoring systems in the construction of gas station storage tanks, and no activity on replacing the obsolete design with new storage tanks. In this regard, much attention should be paid to the creation of geo-environmental systems integrated assessment of the environment, as well as modeling and forecasting various negative situations. In the modern world, the creation of such systems is possible with the help of modern computer tools such as geographic information systems.

DOI: 10.22227/1997-0935.2014.3.212-219

References
  1. Graf M. La. Obzor osnovnoy problemy vzaimodeystviya toplivnogo biznesa i ekologii v mire [Overview of the Main Problem of Interaction of the Fuel Business and Ecology in the World] Sbornik dokladov Mezhdunarodnoy nauchno-prakticheskoy konferentsii «Ekologicheskaya i pozharnaya bezopasnost' sovremennykh AZS» [Collection of the International Scientific-Practical Conference "Environmental and Fire Safety of Modern Gas Stations"]. Moscow, 1998, ðð. 10—12.
  2. Lampert F. Vybrosy parov benzina i reshenie etoy problemy v stranakh Evropeyskogo Soyuza [Gasoline Vapor Emissions and Solution of this Problem in the Countries of the EU]. Sbornik dokladov Mezhdunarodnoy nauchno-prakticheskoy konfe-rentsii «Ekologicheskaya i pozharnaya bezopasnost' sovremennykh AZS» [Collection of the International Scientific-Practical Conference "Environmental and Fire Safety of Modern Gas Stations"]. Moscow, 1998, ðð. 35—39.
  3. Belyaev A.Yu. Otsenka vliyaniya avtozapravochnykh stantsiy (AZS) na geologicheskuyu sredu [Assessment of the Impact of Gas Stations on the Geological Environment]. Sbornik Mezhdunarodnoy konferentsii «Lomonosov—2000: molodezh' i nauka na rubezhe XXI veka» [Collection of International Conference «Lomonosov—2000: Youth and Science of the 21st Century»]. Moscow, 2000, pp. 178.
  4. Belyaev A. Yu., Kashperyuk P.I. Issledovaniya zagryazneniya poverkhnostnogo stoka s territorii AZS (na primere mnogofunktsional'nykh avtozapravochnykh kompleksov «BP» v g. Moskve) [Investigation of Pollution of Surface Runoff Caused by a Filling Station (on the Example of Multifunctional Filling Stations «BP», Moscow)] Sbornik Akademicheskie chteniya N.A. Tsitovicha [Collection of Academic Readings N.A. Tsitovich]. Moscow, 2003, pp.190—194.
  5. Dhanapal G. GIS-based Environmental and Ecological Planning for Sustainable Development. January 2012. Available at: http://www.geospatialworld.net. Date of access: 05.02.14.
  6. Antonio Miguel Mart?nez-Gra?a, Jose Luis Goy, Caridad Zazo. Cartographic-Environmental Analysis of the Landscape in Natural Protected Parks for His Management Using GIS. Application to the Natural Parks of the “Las Batuecas-Sierra de Francia” and “Quilamas” (Central System, Spain). Journal of Geographic Information System. February 2013, vol. 5, no. 1, ðp. 54—68. DOI: 10.4236/jgis.2013.51006.
  7. Reshma Parveen, Uday Kumar. Integrated Approach of Universal Soil Loss Equation (USLE) and Geographical Information System (GIS) for Soil Loss Risk Assessment in Upper South Koel Basin, Jharkhand. Journal of Geographic Information System. December 2012, vol. 4, no. 6, ðp. 588—596. DOI: 10.4236/jgis.2012.46061.
  8. Gol'dberg V.M., Zverev V. P., Arbuzov A. I., Kazennov S. M., Kovalevskiy Yu. V., Putilina V. Tekhnogennoe zagryaznenie prirodnykh vod uglevodorodami i ego ekologicheskie posledstviya [Anthropogenic Pollution of Natural Waters with Hydrocarbons, and its Environmental Consequences]. Moscow. Nauka Publ., 2001,125 p.
  9. Dobrovol'skiy S.A., Kashperyuk P.I., Potapov A.D. K otsenke vliyaniya avtomobil'nykh vybrosov na zagryaznenie gruntov tyazhelymi elementami v razlichnykh zonakh polos gorodskikh avtodorog [To the Question of Assessing the Impact of Automobile Emissions on the Pollution of Soils with Heavy Elements in Different Areas of Urban Roads] Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 1, pp. 299—304.
  10. Dobrovol'skiy S.A. O zagryaznenii uchastkov vdol' avtomagistraley g. Moskvy tyazhelymi metallami [On the Pollution of the Areas along the Highways of Moscow by Heavy Metals]. Inzhenernye izyskaniya [Engineering Research]. 2010, no. 10, pp. 52—56.
  11. Dobrovol'skiy S.A., Potapov A.D., Kashperyuk P.I. Nekotorye podkhody k postroeniyu modeli zagryazneniya vozdushnoy sredy avtotransportnymi vybrosami [Some Approaches to Building a Model of Air Pollution by Road Transport Emissions]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 4, pp.155—158.
  12. Timofeev S.S., Perminova D.V. Otsenka neuchtennoy ekologicheskoy nagruzki sistemy nefteproduktoobespecheniya na atmosferu goroda Irkutska i Irkutskoy oblasti [Assessment of unaccounted environmental load of the system of oil products supply to the atmosphere of the city of Irkutsk and the Irkutsk on public]. Vestnik Irkutskogo gosudarstvennogo tekhnicheskogo universiteta [Proceedings of the Irkutsk State Technical University]. 2011, no. 3, vol. 50, pð. 25—29.
  13. Chernyavskaya T.A. Mesto geoinformatsionnoy sistemy v informatsionnom prostranstve neftegazodobyvayushchey kompanii [Place of GIS in the Information Space of an Oil and Gas Company]. Zhurnal «ArcReview» [Journal "ArcReview"]. 2011, no. 1(56). Available at: http://www.dataplus.ru. Date of access: 01.02.14.
  14. Alekseev V.V., Kurakina N.I., Orlova N.V., Geoinformatsionnaya sistema monitoringa vodnykh ob"ektov i normirovaniya ekologicheskoy nagruzki [The Geoinformational System of Water Objects Monitoring and the Normalization of the Ecological Load]. Zhurnal «ArcReview» [Journal "ArcReview"]. 2006, no. 1(36). Available at: http://www.dataplus.ru. Date of access: 01.02.14
  15. Alekseev V.V., Kurakina N.I., Zheltov E.V. Sistema modelirovaniya rasprostraneniya zagryaznyayushchikh veshchestv i otsenki ekologicheskoy situatsii na baze GIS [System of Simulating the Spread of Pollutants and Estimation of the Ecological Situation on the Basis of GIS]. Informatsionnye tekhnologii modelirovaniya i upravleniya [Information Technologies of Modeling and Control]. Voronezh, 2005, no. 5(23), pp. 765—769.

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Concept for the generation of the model designated for the simulation of interaction between enterprises comprising one major construction company

Vestnik MGSU 11/2014
  • Dubovkina Alla Viktorovna - Moscow State University of Civil Engineering (MGSU) postgraduate student, Assistant Lecturer, Department of Information Systems, Technologies and Automation in Construction, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 180-187

The author offers an original concept designated for the generation of the model designated to simulate interaction between the enterprises comprising one major construction company within the framework of the production and logistics chain, comprising production facilities, transport enterprises, construction and assembly companies. The author has identified the factors that may produce an adverse effect on construction operations or cause untimely commissioning of a construction facility. The author employed methods of mathematics to describe the operations performed by each constituent enterprise. A graphic model describing each operation was compiled through the integration of mathematical functions. The model binds specific operations, performed by constituent companies, to deadlines, drives attention to interaction bottlenecks, and makes adjustments to assure reliable attainment of the main goal, that is, the timely commissioning of a construction facility.

DOI: 10.22227/1997-0935.2014.11.180-187

References
  1. Alekseev N.S. Evolyutsiya sistem upravleniya predpriyatiem [Evolution of Enterprise Management Systems]. Problemy teorii i praktiki upravleniya [Problems of the Theory and Practice of Management]. 1999, no. 2. Available at: http://vasilievaa.narod.ru/ptpu/19_2_99.htm/. Date of access: 12.10.2014. (In Russian)
  2. Bowersox D., Closs D. Logistical Management: The Integrated Supply Chain Process. McGraw-Hill Companies, 4th edition, 496 p.
  3. Egorov A.I. Osnovy teorii upravleniya [Fundamentals of Management Theory]. Moscow, FIZMATLIT Publ., 2011, 504 p.
  4. Zaytsev E.I. Logistika i sinergetika. Novaya paradigma v teoreticheskoy logistike [Logistics and Synergy. A New Paradigm in Theoretical Logistics]. Logistika i upravlenie tsepyami postavok [Logistics and Supply Chain Management]. 2004, no. 1, pp. 7—13. (In Russian)
  5. Bigdan V.B., Pepelyaev V.A., Sakhnyuk M.A. Aktual’nye problemy i tendentsii v oblasti sovremennogo imitatsionnogo modelirovaniya [Current Problems and Trends in the Field of Modern Simulation] // Problemy programmuvaniya [Problems of Programming]. 2004, no. 2, 3, pp. 505—509. Naukova elektronna b³bl³oteka per³odichnikh vidan’ NAN Ukra¿ni [Scientific Internet Library of Periodicals of the National Academy of Sciences of Ukraine]. Available at: http://dspace.nbuv.gov.ua/bitstream/handle/123456789/2304/68%20-%20Bigdan.pdf?sequence=1. Date of access: 12.10.2014. (In Russian)
  6. Burkov V.N., Irikov V.A. Modeli i metody upravleniya organizatsionnymi sistemami [Models and Methods for Managing Organizational Systems]. Moscow, Nauka Publ., 1994, 270 p. (In Russian)
  7. Gol’dshteyn G.Ya. Strategicheskiy innovatsionnyy menedzhment: tendentsii, tekhnologii, praktika : monografiya [Strategic Innovation Management: Trends, Technology, Practice: a Monograph]. Taganrog, TRGU Publ., 2006, 179 p. (In Russian)
  8. Degtyarev Yu.I. Issledovanie operatsiy [Operations Research]. Moscow, Vysshaya shkola Publ., 1996, 320 p. (In Russian)
  9. Dubeykovskiy V.I. Effektivnoe modelirovanie s CA ERwin Process Modeler (BPwin; AllFusion Process Modeler) [Effective Modeling with CA ERwin Process Modeler (BPwin; AllFusion Process Modeler)]. Moscow, Dialog-MIFI Publ., 2009, 384 p. (In Russian)
  10. Ivanov D.A. Razrabotka modeli upravleniya logisticheskimi tsepyami v slozhnykh proizvodstvennykh strukturakh [Developing a Model of Logistic Chains in Complex Production Structures]. Biznes i logistika — 2003 : sbornik materialov Moskovskogo Mezhdunarodnogo logisticheskogo foruma [Business and Logistics — 2003: Collection of the Moscow International Logistics Forum]. Moscow, Stolichnyy biznes Publ., 2003, pp. 33—37. (In Russian)
  11. Moiseev N.N. Elementy teorii optimal’nykh sistem [Elements of the Theory of Optimal Systems]. Moscow, Nauka Publ., 1975, 528 p. (In Russian)
  12. Moiseev N.N. Matematicheskie zadachi sistemnogo analiza [Mathematical Problems of System Analysis]. Moscow, Nauka Publ., 1981, 488 p. (In Russian)
  13. Savin G.I. Sistemnoe modelirovanie slozhnykh protsessov [System Modeling of Complex Processes]. Moscow, Fazis Publ., 2000, 280 p. (In Russian)
  14. Toluev Yu.I., Nekrasov A.G., Morozov S.I. Analiz i modelirovanie material’nykh potokov v setyakh postavok [Analysis and Modeling of Material Flow in Supply Chains]. Integrirovannaya logistika [Integrated Logistics]. 2005, no. 5, pp. 7—14. (In Russian)
  15. Toluev Yu.I. Metodologiya sozdaniya modeley logisticheskikh setey na baze standartnykh sredstv imitatsionnogo modelirovaniya [Methodology for creating models of logistics networks based on the standard tools of simulation]. Logistics, Supply Chain Management and Information Technologies: Proceedings of the German-Russian Logistics Workshop. St. Petersburg, Publishing House of the State Polytechnic University, 2006, pp. 133—142. (In Russian)
  16. Nekrasov A.G. Vzaimodeystvie informatsionnykh resursov v logisticheskikh tsepochkakh postavok (na primere transportnoy otrasli) [Interaction of Information Resources in Logistic Supply Chains (on the Example of the Transport Sector)]. Moscow, Tekhpoligraftsentr Publ., 2002, 205 p. (In Russian)
  17. Stock J., Lambert D. Strategic Logistics Management. McGraw-Hill/Irwin; 4 edition, 2000, 896 p.
  18. Davidow W., Malone M. The Virtual Corporation: Structuring and Revitalizing the Corporation for the 21st Century. New York, Harper Collins, 1992, 187 p.
  19. Orlovskiy S.A. Problemy prinyatiya resheniy pri nechetkoy iskhodnoy informatsii [Decision Making with Fuzzy Initial Information]. Moscow, Nauka Publ., 1981, 208 p. (In Russian).
  20. Nishiyama D., Radosavljevic M. Mathematical Modelling of Decision Making Processes in Construction Projects. 25th Annual ARCOM Conference, 7—9 September 2009, Nottingham, UK. 2009, pp. 95—94.

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MATHEMATICAL AND INFORMATION SUPPORT OF HYDRAULIC EXPERIMENTS AT PIPELINES

Vestnik MGSU 5/2013
  • 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 .
  • Zotkin Sergey Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Informatics and Applied Mathematics; +7 (495) 953-36-35, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Koblova Elena Viktorovna - Moscow State University of Civil Engineering (MGSU) postgraduate student; Department of Water Supply; 7 (495) 516-96-88., Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 214-219

The article contains summarized results of the research into developed software programme capable of processing findings of hydraulic experiments held at pressure pipelines (protective coatings). The authors describe the algorithm of the analysis procedure, sequential analysis, mathematical and hydro-mechanical modeling of the process of transformation of hydraulic values. The authors provide their concept of the dialog box and description of input and output information, as well as functions of the software programme at intermediate stages of the hydraulic analysis. Basic input information supplied into the hydraulic analysis software programme includes the pipeline, its inner diameter, length, and acceptable roughness error.Whenever a user presses the “display result” button, interim information is displayed on the screen and, if necessary, a set of output information is provided in the form of tables and graphs. The choice for the optimal solution is made on the basis of the minimum margin of error between experimental and analytical values of the pipe roughness.The findings may be useful to researchers involved in the study of hydraulic characteristics of pipelines made of various materials and to designers and builders engaged in renovation of sections of pipelines.

DOI: 10.22227/1997-0935.2013.5.214-219

References
  1. Khramenkov S.V. Strategiya modernizatsii vodoprovodnoy seti [Strategy for Modernization of a Water Supply Network]. Moscow, Stroyizdat Publ., 2005, 398 p.
  2. Orlov V.A., Orlov E.V., Pimenov A.V. Podkhody k vyboru ob”ekta renovatsii na truboprovodnoy seti, vosstanavlivaemoy polimernym rukavom [Approaches to the Choice of the Renovated Section of a Pipeline Restored by a Polymeric Sleeve]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 3, pp. 129—131.
  3. Zotkin S.P., Orlov V.A., Orlov E.V., Maleeva A.V. Algoritm i avtomatizirovannaya programma optimizatsii vybora metoda bestransheynogo vosstanovleniya napornykh i beznapornykh truboprovodov [Algorithm and Software Programme for Optimization of Choice for the Method of Trenchless Renovation of Pressure and Free-flow Pipelines]. Nauchnoe obozrenie [Scientific Review]. 2011, no. 4, pp. 61—65.
  4. Khurgin R.E., Orlov V.A., Zotkin S.P., Maleeva A.V. Metodika i avtomatizirovannaya programma opredeleniya koeffitsienta Shezi «S» i otnositel’noy sherokhovatosti «n» dlya beznapornykh truboprovodov [Methodology and Software Programme for Identification of Chezy Factor and Relative Roughness for Free-flow Pipelines]. Nauchnoe obozrenie [Scientific Review]. 2011, no. 4, pp. 54—60.
  5. Orlov V.A., Maleeva A.V. Vodootvodyashchie truboprovodnye seti. Vybor ob”ekta renovatsii na baze ranzhirovaniya destabiliziruyushchikh faktorov [Water Discharge Pipeline Networks. Choice of an Item to Be Renovated on the Basis of the Ranking of Destabilizing Factors]. Tekhnologii Mira [World Technologies]. 2011, no. 1, pp. 31—34.
  6. Kiselev P.G. Spravochnik po gidravlicheskim raschetam [Reference Book of Hydraulic Analysis]. Moscow, Energiya Publ., 1972, 312 p.
  7. Al’tshul’ A.D., Zhivotovskiy L.S., Ivanov L.P. Gidravlika i aerodinamika [Hydraulics and Aerodynamics]. Moscow, Stroyizdat Publ., 1987, 414 p.
  8. Shevelev F.A., Shevelev A.F. Tablitsy dlya gidravlicheskogo rascheta vodoprovodnykh trub. [Tables for Hydraulic Analysis of Water Supply Pipelines]. Moscow, Stroyizdat Publ., 1984, 117 p.
  9. Al’tshul’ A.D. Gidravlicheskie soprotivleniya [Hydraulic Resistances]. Moscow, Nedra Publ., 1970, 216 p.
  10. Prozorov I.V., Nikoladze G.I., Minaev A.V. Gidravlika, vodosnabzhenie i kanalizatsiya gorodov. [Hydraulics, Water Supply and Urban Sewage]. Moscow, Vyssh. shk. publ., 1975, 422 p.

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Using WUFI®plus software to simulate energy arameters of buildings

Vestnik MGSU 7/2013
  • Usmonov Shukhrat Zaurovich - Khujand Politechnic Institute of Tajik Technical University by academic M. Osimi (PITTU); Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Khujand Politechnic Institute of Tajik Technical University by academic M. Osimi (PITTU); Moscow State University of Civil Engineering (MGSU), 226 Lenina st., Khujand, 735700, Tajikistan; applicant, Department of Architecture of Civil and Industrial Buildings; 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 176-180

The author explores the main principles of modeling the energy performance of residential buildings using WUFI®plus software. The author also assesses and analyzes images generated using WUFI+ software within the framework of the simulation of energy parameters of residential buildings. The article also has an experimental analysis of expensive and time-consuming factors that can be avoided thanks to the WUFI®plus software which allows for (1) easy and quick changes in the structure and its design, (2) input of different boundary conditions as well as (3) various values of parameters like material characteristics.

DOI: 10.22227/1997-0935.2013.7.176-180

References
  1. Fundamentals of WUFI®plus. Simultaneous Calculation of Transient Hygrothermal Conditions of Indoor Spaces and Building Envelopes. Holzkirchen, Fraunhofer-lnstitut f?r Bauphysik, 2008, 68 p.
  2. WUFI®plus: general information (October 10, 2010). Retrieved: February 19, 2011, from WUFI-Wiki.
  3. Building Energy Software Tools Directory. Available at: http://apps1.eere.energy.gov. Date of access: 15.06.13.

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VARIATIONS OF ALGORITHMIZATIONS OF GEOMETROGRAPHIC MODELS OF TRIMETRIC PARALLEL MONOPROPTIONS

Vestnik MGSU 4/2017 Volume 12
  • Polezhaev Yuri Olegovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Associate Professor, Associate Professor of Department of Descriptive Geometry and Graphics, Member of the International Union of Russian Artists, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Borisova Anzhelika Yurievna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor of Department of Descriptive Geometry and Graphics, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 464-469

At all stages of the construction design, from conceptual searches to approving the project documentation development, images are important as monoprojections on which the construction basic forms are effectively and expressively shown. Studying the construction of such monoprojections is began even in the first year of higher education, and then they are used to perform term papers and the thesis design. Purpose of study is the choice of the preferred algorithm for solving the problem of constructing monometric projections of trimetric axonometries in the context of the mapping processe computerization, taking into account the form of the object and the conditions for its presentation. In the article, the methodology of the trimetric axonometry monoprojection formation is considered in conditions of the mapping processe computerization. The methods of the metric object point fixation can be selected under the following conditions: orthogonal coordination in the reference point planes; oblique dependence; mixed, i.e., ortho-oblique-angled coordination; they can also contain intermediate transformations for various simplifications. Problems of constructing trimetric axonometry monoprojections at the mapping processe computerization are considered. Since in such cases the number of parameters of the necessary geometrical transformation increases, it becomes possible to use various algorithms for solving the problem. Based on the undertaken studies, conclusions were drawn on possible transformations for obtaining a trimetric monoprojection model and greatly simplifying the solution of problems in the construction object design.

DOI: 10.22227/1997-0935.2017.4.464-469

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Numerical implementation of Voigt and Maxwell models for simulation of waves in the ground

Vestnik MGSU 11/2014
  • Sheshenin Sergey Vladimirovich - Moscow State University (MSU) Doctor of Physical and Mathematical Sciences, Professor, Department of Composite Mechanics, Moscow State University (MSU), 1 Leninskie Gory, Moscow, 119991, Russian Federation; +7 (495) 939-43-43; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zakalyukina Irina Mikhaylovna - Moscow State University of Civil Engineering (MGSU) Candidate of Physical and Mathematical Sciences, Assosiate Professor, Department of Theoretical Mechanics and Aerodynamics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-24-01; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Koval’ Sergey Vsevolodovich - 26 Central Research Institute, branch of 31 State Project Institute of Special Building (31 SPISB) Doctor of Technical Science, Ciief Research Worker, Department of Special Construction and Seismic Resistance, 26 Central Research Institute, branch of 31 State Project Institute of Special Building (31 SPISB), 19 Smolenskiy Bul’var, Moscow, 119121, Russian Federation; +7 (499) 241-2248; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 82-89

A lot of papers have been dedicated to simulation of dynamic processes in soil and underground structures. For example, some authors considered wave distribution in underground water pipes for creation of vibration monitoring system, others considered theoretical and algorithm aspects of efficient implementation of realistic seismic wave attenuation due to viscosity development with the help of Finite Difference Method, etc. The paper describes the numerical simulation, designed for simulation of the stress-strain state in the ground subjected to wave processes. We consider the ground with a concrete structure immersed in. The purpose of the work is the description of small vibrations in hard soil, which can nevertheless make undesirable impact on the objects in the ground or on the surface. Explicit Wilkins type scheme is used for time integration. It has proven to be successful, including the use in a well-known LS-DYNA code. As a result we created our own computer code based on the finite element method (FEM). An example of its practical usage is given.

DOI: 10.22227/1997-0935.2014.11.82-89

References
  1. Tsvetkov R.V., Shardakov I.N., Shestakov A.P. Analiz rasprostraneniya voln v podzemnykh gazoprovodakh primenitel’no k zadache proektirovaniya sistem monitoringa [Analysis of Wave Propagation in Underground Pipelines in Relation to Monitoring Systems Design]. Vychislitel’naya mekhanika sploshnykh sred [Computational Mechanics of Continuous Media]. 2013, vol. 6, no. 3, pp. 364—372. (In Russian).
  2. Kristek J., Moczo P. Seismic-Wave Propagation in Viscoelastic Media with Material Discontinuities: A 3D Fourth-Order Staggered-Grid Finite-Difference Modeling. Bulletin of the Seismological Society of America. 2003, vol. 93, no. 5, pp. 2273—2280. DOI: http://dx.doi.org/10.1785/0120030023.
  3. Kochetkov A. V., Poverennov E. Yu. Primenenie metoda kvaziravnomernykh setok pri reshenii dinamicheskikh zadach teorii uprugosti v neogranichennykh oblastyakh [Application of Quasi-uniform Nets Method in the Process of Solving the Dynamic Problems of the Elasticity Theory in Unbounded Domains]. Matematicheskoe modelirovanie [Mathematical Simulation]. 2007, no. 19, pp. 81–92. (In Russian).
  4. Glazova E.G., Kochetkov A.V., Krylov S.V. Chislennoye modelirovanie vzryvnykh protsessov v merzlom grunte [Numerical Simulation of Explosive Processes in Frozen Soil]. Izvestiya Rossiyskoy akademii nauk. Mekhanika tverdogo tela [News of the Russian Academy of Sciences. Solid Mechanics]. 2007, no. 6, pp. 128—136. (In Russian).
  5. Potapov A.P., Royz S.I., Petrov I.B. Modelirovanie volnovykh protsessov metodom sglazhennykh chastits (SPH) [Modeling of Wave Processes Using Smoothed Particle Hydrodynamics (SPH)]. Matematicheskoye modelirovaniye [Mathematical Modeling]. 2009, no. 7. Vol. 21. Pp. 20—28. (In Russian).
  6. Potapov A.P., Petrov I.B. Modelirovanie volnovykh protsessov pri vysokoskorostnykh soudareniyakh metodom sglazhennykh chastits (SPH) [Modeling of Wave Processes in High-Speed Collisions by Smoothed Particle Hydrodynamics (SPH)]. Vestnik Baltiyskogo federal'nogo universiteta im. I. Kanta [Proceedings of Immanuel Kant Baltic Federal University]. 2009, no. 10, pp. 5—20. (In Russian).
  7. Zamyshlyaev B.V., Evterev L.S. Modeli dinamicheskogo deformirovaniya i razrusheniya gruntovykh sred [Models of Soil Dynamic Deformation and Destruction]. Moscow, Nauka Publ., 1990, 215 p. (In Russian).
  8. Kiselev F., Sheshenin S.V. Modelirovanie kontakta podzemnykh sooruzheniy s uprugovyazkoplasticheskim gruntom [Modeling of Underground Structures Interaction with Elastic Ground]. Vestnik Moskovskogo universiteta. Seriya 1. Matematika i mekhanika [Proceedings of Moscow University. Series 1. Mathematics and Mechanics]. 2006, no. 3, pp. 61—65. (In Russian).
  9. Kondaurov V.I., Nikitin L.V. Teoreticheskie osnovy reologii geomaterialov [Theoretical Foundations of Rheology Theory for Geomaterials]. Moscow, Nauka Publ., 1990, 207 p. (In Russian).
  10. Rykov G.V., Skobeev A.M. Izmereniye napryazheniy v gruntakh pri kratkovremennykh nagruzkakh [Measurement of Stress in the Soil under Impulse Loadings]. Moscow, Nauka Publ., 1978, 168 p. (In Russian).
  11. Tukhvatullina A.V., Kantur O.V. Matematicheskie modeli deformirovaniya myagkikh gruntov [Mathematical Models of Soft Soil Deformation]. Sovershenstvovanie metodov rascheta i konstruktsiy podzemnykh sooruzheniy [Advancing Calculation Methods and Structures of Underground Constructions]. Moscow, 26 TSNII MO RF Publ., 2000. (In Russian).
  12. Del?pine N., Lenti L., Bonnet G., Semblat J.-F. Nonlinear Viscoelastic Wave Propagation: an Extension of Nearly Constant Attenuation Models. Jornal of Engineering Mechanics. 2009, vol. 135. Issue 11, pp. 1305—1314. DOI: http://dx.doi.org/10.1061/(ASCE)0733-9399(2009)135:11(1305).
  13. Morochnik V., Bardet J.P. Viscoelastic Approximation of Poroelastic Media for Wave Scattering Problems. Soil Dynamics and Earthquake Engineering. 1996, vol. 15, no. 5, pp. 337—346. http://dx.doi.org/10.1016/0267-7261(96)00002-4.
  14. Keunings R. Progress and Challenges in Computational Rheology. Rheologica Acta. 1990, vol. 29, no. 6, pp. 556—570.
  15. Brandes K. Blast — Resistant Structures. Proceedings of the International Workshop on Blast — Resistant Structures. Tsinghua Univ., Beijing, China, 1992.
  16. Wilkins M.L. Calculation of Elastic-Plastic Flow. Methods of Computational Physics. 1964, Academic Press, New York, vol. 3.
  17. Reshetova G., Tcheverda V., Vishnevsky D. Parallel Simulation of 3D Wave Propagation by Domain Decomposition. Journal of Applied Mathematics and Physics. 2013, no. 1, pp. 6—11. DOI: http://dx.doi.org/10.4236/jamp.2013.14002.
  18. ?erveny V., P?en??k I. Plane Waves in Viscoelastic Anisotropic Media—I. Theory. Geophysical. Jornal International. 2005, vol.161, no. 1, pp. 197—212.
  19. Daley P.F., Krebes E.S. SH Wave Propagation in Viscoelastic Media. CREWES Research Report. 2003, vol. 15, pp.1—25.
  20. Radim C., Saenger E.H., Gurevich B. Pore Scale Numerical Modeling of Elastic Wave Dispersion and Attenuation in Periodic Systems of Alternating Solid and Viscous Fluid Layers. Journal of the Acoustical Society of America. 2006, vol. 120 (2), pp. 642—648. DOI: http://dx.doi.org/10.1121/1.2216687.

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THERMOPHYSICAL MODELING IN URBAN

Vestnik MGSU 1/2012
  • Shukurov Ilhomzhon Sadrievich - Moscow State University of Civil Engineering (MSUCE) рrofessor, doctor of technical sciences, Professor +7-926-421-68-50, Moscow State University of Civil Engineering (MSUCE), 26, Yaroslavskoe shosse, Moscow, 129337; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Khongorova Irina Vyacheslavovna - Moscow State University of Civil Engineering (MSUCE) Assistant to chair ASP, Mytishchinsky branch MGSU, Moscow State University of Civil Engineering (MSUCE), 50, Olympic prospectus, Mytishchi, Moscow region; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 12 - 16

In urban areas it is impossible to hold credible generalized field observations of climate due to the vastness and diversity of the territories. Therefore, the most acceptable way to resolve problems should be considered as the application of thermophysical modeling.

DOI: 10.22227/1997-0935.2012.1.12 - 16

References
  1. Venikov V.A., Venikov G.V. Teorija podobija i modelirovanija (primenitel'no k zadacham jelektrojenergetiki) [Similarity theory and modeling (applied to the problems of electric power)]. Moscow, 1984, 439 p.
  2. Shukurov I.S. Matematicheskoe modelirovanie vlijanija zhiloj zastrojki na teplovoe sostojanie cheloveka [Mathematical modeling of influence of a housing estate on a thermal condition of the person]. Zhiliwnoe stroitel'stvo [Housing construction], no 1, 2006, Pp. 11—13.
  3. Shukurov I.S. Primenenie fiziologo-geometricheskogo modelirovanija dlja issledovanija mikroklimata zhiloj zastrojki [Application of fiziologo-geometrical modeling for èññëåäîâàíèÿ a housing estate microclimate]. Biomedicinskaja tehnologija i radiojelektronika [Biomedical technology and radio electronics], no 6, 2005, Pp. 70—73.
  4. Shukurov I.S. Vlijanie materialov dejatel'noj poverhnosti na ozdorovlenie okruzhajuwej sredy zhiloj zastrojki [Influence of materials active ïîâåðõíîñòè on improvement of environment of a housing estate]. Gigiena i sanitarija [Hygiene and sanitary], no 1, 2006, Pp. 60—61.

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GEOMECHANICAL MONITORING OF UNDERGROUND CONSTRUCTION PROJECTS

Vestnik MGSU 11/2012
  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Manko Artur Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 227 - 235

The authors argue that optimization of monitoring systems is a complicated task, as multiple
factors need to be taken account of at one and the same time. The authors consider a monitoring
system as a system of "supervision" that incorporates a set of tools, as well as registration,
archiving, classification, and analysis of inspection results, inclusive of their comparison with the
projected data, development and implementation of engineering solutions.
The basic goal of any geomechanical monitoring project consists in development of a methodology
of rational arrangement of items of monitoring equipment that employ GIS technologies. The
objective of this research is to apply advanced numerical methods in combination with geographic
information systems with a view to the optimization of a system of monitoring applicable to subterranean
structures. Should the proven methodological and scientific validity of the research findings
be in place, long-term geomechanical projections of the structural behaviour will be feasible. The
proposed methodology may be introduced as a standard method of structural behaviour monitoring
in the course of construction and operation of structures for engineering solutions to be made in the
real-time mode. The principal goal of a monitoring system is the identification of the rock nature,
processes initiated in the medium, their development pattern, and the identification of technical and
economic factors of impact onto the engineering solutions to be made at each stage of engineering
surveys, design, construction and operation of major subterranean structures.
The analysis of calculations made for various loading scenarios have proven that any further
research should take account of a lateral load that is equal to doubled vertical loads.
The research was performed at a subterranean structure composed of two parallel chamber pits.
The analysis of GIS modeling methods has proven that development of GIS projects requires
the employment of statistical methods of the multidimensional analysis. Employment of multidimensional
analysis methods makes it possible to examine the geological features that demonstrate a
high degree of complexity. Terrain modeling requires the employment of models of formal characterization
and differentiation. Identification of positions of geological strata and tectonic dislocations
may be reduced to interpolation and extrapolation.
The model of a subterranean structure is implemented in the GIS and databases, and it incorporates
the data banks entitled "Rock", "Massif", "Structure and Massif", as well as the data banks.
that contain surveying, geological and supplementary information. The GIS also comprises a topographic
site plan, a geologic description of a massif (stratifi cation, lamination, as well as a complete
assessment of each major massif crack).
The subterranean structure of a radioactive waste storage site was the subject of a 3D numerical
experiment. Its results were entered into the GIS project database. Positions and lengths
of extensometers were optimized on the basis of the simulation performed in furtherance of the
methodology developed by the authors. Positions of extensometers were registered in the GIS as
reference points.

DOI: 10.22227/1997-0935.2012.11.227 - 235

References
  1. Man’ko A.V. Organizatsiya optimal’nogo monitoringa okruzhayushchey sredy dlya podzemnogo stroitel’stva [Organization of Optimal Monitoring of the Environment for the Purposes of Underground Construction]. Moscow, ASV Publ., 2009.
  2. Bereznyakov A.I. and other coauthors. Monitoring geotekhnicheskikh sistem: zadachi, osobennosti i metodologiya vypolneniya [Monitoring of Geotechnical Systems: Objectives, Peculiarities and Methodology of Performance]. Moscow, 1998.
  3. Berlyant A.M. Geoinformatsionnoe kartografirovanie [Geoinformational Mapping]. Moscow, Russian Academy of Natural Sciences, MGU Publ., 1997, 64 p.
  4. Geoinformatsionnye sistemy: obzornaya informatsiya. Seriya: geodeziya, aeros”emka, kartografiya [Overview of Geoinformation Systems. Geodesy, Aerial Mapping, Cartography Series]. Moscow, TsNIIGAiK Publ., 1992, 52 p.
  5. Konovalov N.V., Kapralov E.G. Vvedenie v GIS [Introduction into GIS]. Moscow, Biblion Publ., 1997, 160 p.
  6. Bernhardsen T. Georgaphic Information Systems: an Introduction. New York, John Wiley & Sons, 2002. 320 p.
  7. Trofimov V.T., editor. Gruntovedenie [Pedology]. Moscow, Nauka Publ., 2005, 1024 p.
  8. Pashkin E.M., Kagan A.A., Krivonogova N.F. Terminologicheskiy slovar’-spravochnik po inzhenernoy geologii [Dictionary and Reference Book of Engineering Geology]. Moscow, Knizhnyy dom publ., 2011, 950 p.
  9. Anan’ev V.P., Potapov A.D. Inzhenernaya geologiya [Engineering Geology]. Moscow, Vyssh. shk. publ., 2008, 260 p.

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MODELING OF CONSTRUCTION PROCESSES FOR A SPECIFIC OBJECT BASED ON ENVIRONMENTAL PARAMETERS

Vestnik MGSU 7/2017 Volume 12
  • Abramyan Susanna Grantovna - Institute of Architecture and Civil Engineering of Volgograd State Technical University (IACE VSTU) Candidate of Technical Sciences, Associate Professor, Department of Construction Technology, Institute of Architecture and Civil Engineering of Volgograd State Technical University (IACE VSTU), 1 Akademicheskaya str., Volgograd, 400074, Russian Federation.
  • Burlachenko Oleg Vasil’evich - Institute of Architecture and Construction of Volgograd State Technical University, (IoAaC of VSTU) Doctor of Technical Science, Professor, Chair of the Department of Construction Production Technology, Institute of Architecture and Construction of Volgograd State Technical University, (IoAaC of VSTU), 1 Akademicheskaya str., Volgograd, Russian Federation, 400074.
  • Oganesyan Oganes Valer'evich - Institute of Architecture and Civil Engineering of Volgograd State Technical University (IACE VSTU) student, Faculty of Construction and Housing and Communal Services, Institute of Architecture and Civil Engineering of Volgograd State Technical University (IACE VSTU), 1 Akademicheskaya str., Volgograd, 400074, Russian Federation.

Pages 797-803

This paper suggests that building information modeling is predominantly aimed at deriving certain economic benefits. The construction schedule is prepared without considering the proper balance in the environment. Due to their complex and diverse nature, construction operations cannot be ideally modeled in terms of environmental sustainability. Still, a reduction of some hazardous impacts is manageable. This paper primarily focuses on the methodology that can be used to calculate the volume of polluting substances emitted during machinery operation. It highlights that during construction of large residential and environmental complexes, when several objects and linear facilities of tens or hundreds kilometers are being built simultaneously, it is especially dangerous to use a fleet of machines and mechanisms. The originality of this paper is underpinned by the conceptually new approach to the environmental basis of the construction processes during building construction. Hazardous emissions are suggested to be calculated using the generally known methodology for determining the maximum amount of technical resources required per shift. Given a known machinery brand, engine capacity and the number of operating shifts of a machine or mechanism, the maximum emission volume can be derived. By comparing the calculation results with the maximum allowable concentrations, the final conclusion can be made regarding the conformity of the construction schedule with the applicable environmental standards.

DOI: 10.22227/1997-0935.2017.7.797-803

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DETERMINATION AND VERIFICATION OF PARAMETERS OF THE SOFT SOIL MODEL WITH ACCOUNT FOR CREEP

Vestnik MGSU 6/2018 Volume 13
  • Ter-Martirosyan Armen Zavenovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor of the Department of Soil Mechanics and Geotechnics, Head of Research and Education Center «Geotechnics», Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Sidorov Vitaliy Valentinovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Assistant Professor, Department of Soil Mechanics and Geotechnics, Researcher at the Research and Education Center «Geotechnics», Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Ermoshina Lyubov’ Yur’evna - Moscow State University of Civil Engineering (National Research University) (MGSU) Engineer of Research and Education Center «Geotechnics», Moscow State University of Civil Engineering (National Research University) (MGSU), Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 697-708

Subject: a technique for optimizing parameters of the soft soil model with account for creep (soft Soil Creep model) using the PLAXIS 3D geotechnical software package is presented. The results of laboratory tests of soils are compared with the results of modeling in the software package, the process of optimizing the parameters obtained in the laboratory for use in software systems is described, and description of the process of testing the obtained parameters for adequacy (approximation to the behavior in the process of testing) is given. The obtained technique is relevant for application in geotechnical calculations. Research objectives: description of the technique for optimizing parameters of the soft soil model with creep taken into account using the PLAXIS 3D geotechnical software package; comparative analysis of the obtained results of laboratory tests of soils with simulation results in the software package. Materials and methods: when describing the technique for optimizing parameters of the soft soil model, taking into account the creep, numerical methods of solution were used. Laboratory studies of soils were carried out on certified equipment in accordance with the current set of regulations, and the numerical calculations were performed on a certified PLAXIS 3D software package. Results: the technique presented in the article on optimization of parameters of the soft soil model, taking into account the creep, allows us to estimate the degree of correctness of the soil massif behavior simulation in the software package relative to the behavior of the real soil in laboratory setup. This is necessary when this technique is used in geotechnical calculations, since it is very important for designers and analysists to know how well the soil behavior modeled with the software system can approximate the behavior of the soil during actual testing. Conclusions: the conducted comparative analysis and the proposed technique for optimizing parameters of the soft soil model with allowance for creep are obtained from the practical experience of works carried out for determining parameters of the described soil model and applying this model for geotechnical analysis of the stress-strain state of the bases of buildings and structures, being designed and under construction.

DOI: 10.22227/1997-0935.2018.6.697-708

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Modeling of suspension displacement process

Vestnik MGSU 8/2018 Volume 13
  • Galaguz Yuri P. - National Research Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of Applied Mathematics, National Research 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 .
  • Safina Galina L. - National Research Moscow State University of Civil Engineering (MGSU) , National Research 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 944-951

Subject: transport of fluid containing suspended solid particles significantly affects the strength and stability of underground storage facilities, tunnels and hydraulic structures. The process of suspension filtration and displacement of suspension by a flow of fluid is considered in this article. Research background: filtration problems have been intensively studied for the last half-century. During this period, filtration models have become much more advanced. When modeling long-term deep bed filtration, modern researchers have to take into account the numerous factors that influence the transport and deposition of microscopic particles in the porous media. A number of models are being constructed on the basis of balance relationship between suspended and retained particles. Stochastic approaches to filtration problems using the Boltzmann model, network models and random walk equations are also successfully being developed. Research objectives: the study of an advanced one-dimensional model of suspension filtration in a solid porous medium when the suspension is being displaced with pure water. Materials and methods: we consider the process of displacement of suspension with pure water in a porous medium at which the transfer of fine particles and the accumulation of a deposit occur. The mechanical and geometric interaction of particles with a porous medium is the basis of our mathematical model: the solid particles freely pass through the large pores and get stuck in the pores whose size is smaller than the particle diameter. It is assumed that the fluid flow or other particles cannot knock out the retained particles. Deep bed filtration model is described by the equation of mass balance of suspended and retained particles of suspension and the kinetic equation for growth of deposit. When deep bed filtration process is long, the number of free small pores is significantly reduced, which leads to the changes in permeability and porosity of the porous medium. In order to account for this phenomenon, in contrast to the classical filtration equations, the dependence of the coefficients of mass balance equation on deposit concentration is introduced. In this problem at the initial moment a porous medium is filled with a suspension of retained and suspended particles at given concentrations. At filter inlet the pure water starts flowing, which displaces the suspension and gradually fills the porous medium. In the porous medium with pure water the filtering of suspension is terminated, the suspended particles concentration becomes zero, and the retained particles concentration is constant. The numerical calculation is performed by the method of finite differences. Results: for the deep bed filtration problem with variable porosity and permeability, a moving boundary between two phases has been identified, i.e., the front of the moving water flow, and its graph is constructed. Three-dimensional plots of retained and suspended particles concentrations and plots of their two-dimensional cross-section at a fixed time and for a prescribed distance from the filter input are created. The numerical solution is compared with the exact solution for the case of constant coefficients. Conclusions: it is shown that the filtration model with constant functions of porosity and permeability for small values of time can be a linear approximation of more general nonlinear models. Practical significance: planning and development of modern technologies for wastewater and industrial waste treatment, protection of underground structures from groundwater and flood waters, strengthening of porous soil by the concrete grouting method are based on the results of mathematical modeling of filtration problems. The results of the paper allow us to reduce the amount and cost of laboratory research and optimize the cleaning technologies of filter systems.

DOI: 10.22227/1997-0935.2018.8.944-951

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A model of organization life cycle of a medical building

Vestnik MGSU 12/2018 Volume 13
  • Dorogan Igor A. - Almaz-SP Director for construction, Almaz-SP, 7 Obraztsova st., Moscow, 127025, Russian Federation.

Pages 1474-1481

Introduction. An approach to the development of the organizational-technological model of the life cycle of a medical facility building is presented. Buildings of medical organizations have a number of features in the design, construction and operation. The buildings of nuclear medicine are subject to particularly high requirements of radiation and fire safety. Materials and methods. To organize the design, construction and maintenance of medical buildings, it is advisable to create and develop an organizational and technological model of the medical building life cycle. Such model was created by the author in the form of a business processes sequence. Confirmation of the effectiveness of the model is carried out with the help of multi-criteria expert evaluation. Results. To solve this problem, it is proposed a number of changes in the order of the investment project carrying. A new element is the Preliminary justification of the requirements for the health facility. It should become a mandatory document when obtaining a town-planning plan of the ground area, which is in Russia a de facto permission to design. It is also proposed to prepare technical requirements of three levels. The first level requirements are used for pre-design stage procedures. The requirements of the second level are included in the medical and technical design assignment. The requirements of the third level are applied to the detailed design, as well as to the construction and maintenance of the facility. Requirements are included in the requirement system and must be checked at key stages of the project. At the preliminary project phase, it is also advisable to make a technical and economic calculation with the justification of the main technical solutions and technical and economic indicators. This document should also include a project management plan. New elements are included in organizational and technological models of different stages of the object life cycle. Conclusions. On the basis of the developed model, it is proposed to make adjustments to the normative guideline used in the construction management. For example, it is necessary to make mandatory documents of the pre-design stage. These works have to be paid by investor therefore the standard of design cost has to be increased.

DOI: 10.22227/1997-0935.2018.12.1474-1481

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