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ACCOUNTING FOR BREACH OF NATURAL HEAT EXCHANGE IN THE DESIGN OF RAILWAY IN permafrost soil

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ACCOUNTING FOR BREACH OF NATURAL HEAT EXCHANGE IN THE DESIGN...

Predictive modeling of the permafrost thermal regime in Russian railroad subgrade support systems

2011 International Conference on Physics Science and Technology (ICPST 2011)

作者： E.S.Ashpiz L.N.Khrustalev T.S.Vavrinuk Moscow State University of Railway Departament of Track and Track Facilities Lomonosow Moscow State University Departament of Geology

The design of railway embankment with syntactical thermal insulator on permafrost soil is considered. It is shown that thermal insulator in embankment body allows one to save soils under embankment in frozen condition. It is recommended to put the thermal insulator nearly embankment foot in low embankments. The result of analytical calculation and mathematical modeling on the determination of the thermal insulator thickness are given.

关键词： analytical calculation mathematical modeling permafrost soil railway embankment synthetically thermal insulator

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Research in Cold and Arid Regions 2013年第4期5卷 404-407页

作者： Sergei Kudriavtcev Tatiana Valtseva Alexei Kazharskyi Elena Goncharova Iurii Berestianyi Far Eastern State Transport University (FESTU) Research Construction and Engineering Company "DV-GEOSYNTHETICS "

The goal of a predictive thermotechnical calculation is to model the behavior of the top permafrost boundary under current operational conditions as well as increasing average annual air temperatures that results in degradation of the permafrost layer. Numerical modeling was used to assess the efficient application of construction measures to create sustainable operation of the railroad. The numerical modeling was carried out in the programming complex FEM-models developed by geotechnical engineers of St. Petersburg, Russia under Prof. V. M. Ulitsky＇s guidance. The Termoground Program as a part of the FEM-models enables the research of freezing, heaving and thawing in different design solutions. Research was carried out in space resolution for a year cycle. The performed model has shown that the designing measures accepted for permafrost protection from retreat in the subrade support were generally effective.

关键词： reinforcement modeling deformations permafrost soil embankment

Study of moisture migration in clay soils considering rate of freezing

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Research in Cold and Arid Regions 2014年第5期6卷 474-478页

作者： S.A.Kudriavtcev A.V.Kazharskii E.D.Goncharova I.B.Berestianyi Far Eastern State Transport University (FESTU) Research Construction and Engineering Company (DV-GEOSYNTHETICS)

The paper presents some methods of numerical modeling and a study of moisture changing in frozen clay soils considering rates of freezing in the base of *** impact assessment of moisture changes in clay soils affectin... 详细信息

关键词： numerical modeling permafrost soil freezing thawing

Composite technology of earthwork construction on taliks in cryolithic zones

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Research in Cold and Arid Regions 2013年第5期5卷 577-581页

作者： Svyatoslav Ya.Lutskiy Taisiya V.Shepitko Alexander M.Cherkasov Federal State-Funded Educational Institution of Higher Vocational Education Moscow State University of Railway Engineering (MGUPS (MIIT)) Institute of Rail Track Construction and Structures permafrost Research Laboratory Federal State-Funded Educational Institution of Higher Vocational EducationMoscow State University of Railway Engineering (MGUPS (MIIT))

This paper reviews construction and technological solutions for roadbeds in talik areas of permafrost soil, and proposes an integrated technology for prevention and elimination of taliks during construction periods. It also summarizes the expe- rience of process regulation scheduling and soil conditions monitoring during construction.

关键词： integrated technology permafrost soil taliks technological adjustment