BEDDINGS AND FOUNDATIONS, SUBTERRANEAN STRUCTURES

Thermal behaviour of moscow soil and its influence on geotechnical properties of the active zone of bases of structures

Vestnik MGSU 3/2013
  • Kashperyuk Aleksandra Aleksandrovna - Moscow State University of Civil Engineering (MGSU) student, Department of Soils, Foundation Soils and Foundations; +7 (499) 129-18-72, 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 .
  • Kashperyuk Pavel Ivanovich - Moscow State University of Civil Engineering (MGSU) Candidate of Geological and Mineralogical sciences, Associate Professor, Department of Engineering Geology and Geo- ecology, 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 .
  • Potapov Ivan Aleksandrovich - Scientific and Research Institute of Emergency Healthcare named after N.V. Sklifosovskiy engineer, Scientific and Research Institute of Emergency Healthcare named after N.V. Sklifosovskiy, ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 88-97

The authors consider particular aspects of influence of the thermal behaviour of soils of the active zone of bases of structures on the moisture and heat transfer inside the soil, their condition and deformation behaviour in the urban environment. It is noteworthy that any changes of the temperature gradient of soils caused by the moisture and heat transfer alter both the value of filtration ratios of soils having various compositions and their stress-strained state.The authors analyze the process of construction of a specific high-rise building in Moscow to prove that availability of systems of utilities emitting heat in Moscow soils at the depth of 3 — 10 meters below the ground level may increase the soil temperature up to 30 degrees C and even higher, whereas demounting of utility networks will cause an abrupt change in the thermal behaviour of the soil. Moisture redistribution causes heated and dehydrated soils to absorb moisture and to change their condition and principal physical mechanical properties.Having completed a series of field tests, the authors have identified that 1C reduction in the clay soil temperature reduces its modulus of deformation by 0.7…..1.0MPa. It is noteworthy that no projections of alterations in the principal physical and mechanical properties of base soils in the urban environment are possible absent of thermometrical tests accompanying geological engineering surveys. Findings of experimental and field research projects and their theoretical justification have proven that research into filtration properties of soils in the top zone of bases of buildings and structures and engineering networks in the environment of urban ecosystems require wide scale groundwater research to be performed within tight urban territories.

DOI: 10.22227/1997-0935.2013.3.88-97

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