DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

INTERACTION BETWEEN LONG PILES AND THE SOIL BODY AS PART OF THE SLAB-PILE FOUNDATION

Vestnik MGSU 3/2012
  • Ter-Martirosyan ZavenGrigorevich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Distinguished Scholar of the Russian Federation, Head of Department of Soils, Ground Foundation and Foundation Mechanics 8 (499) 261-59-88, 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 .

Pages 74 - 78

The paper provides a definition of and a solution to the problems of interaction between long piles and the soil body as part of the slab-pile foundation with the due account for the interval between the piles, the length of piles and their correlations, as well as the nonlinear properties of soil identified by analytical and numerical methods through the application of Plaxis-2d software.
It is proven that the above properties produce a substantial impact onto the stress-strain state of soils that interact with the pile and the grid, and the impact values make it possible to assess the rigidity of the slab-pile foundation that is needed to solve the problems of the multiplicity of piles as well as the problems of distribution of the total load between the piles and the grid.

DOI: 10.22227/1997-0935.2012.3.74 - 78

References
  1. Ter-Martirosyan Z.G. Mekhanika gruntov [Soil Mechanics]. Moscow, ASV, 2009, 550 p.
  2. Ter-Martirosyan Z.G., NguenZang Nam. Vzaimodeystvie svay bol’shoy dliny s neodnorodnym massivom s uchetom nelineynykh i geologicheskikh svoystv gruntov [Interaction between Long Piles and the Heterogeneous Soil Body with the Account for Nonlinear and Rheological Properties of Soils].Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering], 2008, Issue 2, pp. 3—14.
  3. Ter-Martirosyan Z.G., Trinh Tuan Viet. Vzaimodeystvie odinochnoy dlinoy svai s osnovaniem s uchetom szhimaemosti stvola svai [Interaction between a Single Long Pile and the Bedding with the Account for the Compressibility of the Pile Shaft]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering], Issue 8, 2011, pp. 104—111.

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Efficiency of trench barriers used to protect structures from dynamic loads and studyof the stress — strain state of soils based on strain hardeningand elastic models

Vestnik MGSU 3/2013
  • Orekhov Vyacheslav Valentinovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, chief research worker, Scientific and Technical Center “Examination, Design, Inspection”, 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 .
  • Negahdar Hassan - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Soil Mechanics, Beddings and Foundations, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 105-113

Wave barriers are intended to mitigate vibration transmission in the soil. They include open and infilled trenches, sheet piles, etc. In this study, a two-dimensional finite difference element analysis was performed using FLAC-2D software as a research into the efficiency of open and infilled barriers exposed to dynamic loading with or without the presence of structures. In this contribution, two constitutive models are considered to study the soil response in the elastic and elastoplastic range with account for yield, failure and potential functions of soil plasticity. The results were assessed with account for reduced soil particle displacements on the ground surface exposed to impulse loading.The numerical analysis has proven that the results obtained by assigning elastic properties to the soil material fail to comply with the results obtained by analyzing the model having non-linear properties of soils. The presence of a structure produces a significantly larger effect onto the efficiency of barriers by reducing the surface wave energy.

DOI: 10.22227/1997-0935.2013.3.105-113

References
  1. Barkan D.D. Dynamics of Bases and Foundations. McGraw-Hill Book Company Inc., 1962, pp. 374—406.
  2. Al-Hussaini T.M. and Ahmad S. Numerical and Experimental Studies on Vibration Screening by Open and Infilled Trench Barrier. International Workshop on Wave Propagation, Moving Load and Vibration Reduction. Brookfield, 2000, pp. 241—250.
  3. Musaev V.K., Kurantsov V.A. O razrabotke metodiki rascheta sooruzheniy neglubokogo zalozheniya pri vnutrennikh vzryvnykh volnovykh vozdeystviy [Development of Methodology of Analysis of Shallow Foundation Structures Exposed to Internal Explosive Wave Impacts]. Vestnik Rossiyskogo universiteta druzhby narodov. Seriya problemy kompleksnoy bezopasnosti. [News Bulletin of Russian Peoples’ Friendship University. Comprehensive Safety Problems Series]. 2008, no. 1, pp. 75—76.
  4. Musaev V.K., Sazonov K.B. Chislennoe modelirovanie bezopasnosti sooruzheniy neglubokogo zalozheniya pri vneshnikh vzryvnykh vozdeystviyakh [Numerical Modeling of Safety of Shallow Foundation Structures Exposed to External Explosive Impacts]. Vestnik Rossiyskogo universiteta druzhby narodov. Seriya problemy kompleksnoy bezopasnosti. [News Bulletin of Russian Peoples’ Friendship University. Comprehensive Safety Problems Series]. 2008, no. 3, pp. 6—13.
  5. Musaev V.K. Komp’yuternoe modelirovanie bezopasnosti okruzhayushchey sredy s pomoshch’yu polostey pri vzryvnykh vozdeystviyakh v sooruzheniyakh neglubokogo zalozheniya [Computer Simulation of Environmental Safety Using Cavities in Case of Exposure of Shallow Foundation Structures to Explosions] Bezopasnost’ i ekologiya tekhnologicheskikh protsessov i proizvodstv. Materialy Vserossiyskoy nauchno-prakticheskoy konferentsii. Poselok Persianovskiy Rostovskoy oblasti. [Safety and Ecology of Manufacturing and Production Processes. Works of the All-Russian Scientific and Practical Conference. Persianovskiy Settlement, Rostov Region.] Donskoy gosudarstvennyy agrarnyy universitet [Don State University of Agriculture]. 2009, pp. 110—115.
  6. Orekhov V.V., Negakhdar Kh. Nekotorye aspekty izucheniya primeneniya transheynykh bar’erov dlya umen’sheniya energii poverkhnostnykh voln v grunte [Particular Aspects of Research into Application of Trench Barriers Aimed at Reduction of the Surface Wave Energy in the Soil]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 1, pp. 98—104.

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