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CONTAMINATION OF WATER-SATURATED SANDY-CLAY SOILS IN THE UNDERGROUND SPACE OF MEGALOPOLISES AND ITS CONNECTION TO BUILDINGS LONG-TERM STABILITY (THE CASE STUDY OF SAINT-PETERSBURG)
Abstract
The paper considers the main natural and technogenic factors forming the ecological state of the underground space and its influence on the long-term stability of buildings in such megalopolises as Saint Petersburg. Various contamination sources of Saint Petersburg underground environment, including sandy-clayey sediments, groundwater, gases of different genesis, microorganisms, as well as above-ground and underground structures, are analysed. Peculiar natural and technogenic processes, which activation or development can cause intensive underground space contamination, are described. The principle block diagram showing multicomponent underground space and assessing its interaction with buildings is proposed as a basis for developing computational models to ensure the long-term stability of the system.
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References3
Dashko, R.E., Karpova, Y.A., Engineering-geological features of moraine deposits in the underground space of Saint Petersburg, Engineering geology, №1, p. 22-30, 2014.
Shashkin, A.G., Design of buildings and underground constructions in complicated engineering geological conditions of St. Petersburg., Moscow, «Academic Science» - Geomarketing publishing, 352 pp, 2014.
Ulitsky, V., Shashkin, A., Lisyuk, M., Paramonov, V., Providing safety and reliability during reconstruction and preservation of historical Cities, Journal of Harbin Institute of Technology (New Series), Volume 16, Issue SUPPL. 1, p. 54-57, 2009.
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