Estimation of additional foundation settlements caused by dynamic loading in urban areas

• Autorzy: Sidorova A.I. , Voznesensky E.A.
• Języki publikacji: EN

Abstrakty

EN

Response of different soils to dynamic loading is of fundamental interest in many engineering, geophysical and environmental studies. Many methods have been proposed to estimate dynamic stability of soils. One more approach, based on laboratory cyclic testing, is discussed in this paper. In our tests, not only the specific features of examined soils, but also different conditions of static and dynamic loading have been taken into account. An analysis of the obtained experimental data explicitly supports the hypothesis of a logarithmic relationship between the axial deformation of soil in cyclic triaxial compression and the number of loading cycles. Evaluation of soil deformation under vibrodynamic loads can also be based on energy approach. The use of critical amount of energy dissipated by soil per its unit volume has been proved to be reliable even in a low dynamic stress range. Convergence of the proposed solution was proved using field measurements and observations. The proposed approach has been applied to evaluate additional settlements of structures founded on the basis of different soil profiles and under various static and dynamic loading conditions.

Słowa kluczowe

EN

deformation of soils; dynamic stability; vibration in urban area

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2010
• Tom: Vol. 58, no. 1
• Strony: 126--142
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Sidorova A.I.

autor

Voznesensky E.A.

• Faculty of Geology, Lomonosov Moscow State University, Moscow, Russia,

Bibliografia

• Lokshin, G.P., and I.V. Chesnokova (1992), Highways and Geological Environment, Nauka, Moscow (in Russian).
• Mitchell, J.K. (1993), Fundamentals of Soil Behaviour, 2nd ed., Wiley Inc., New York, 438 pp.
• Osipov, V.I., and O.P. Medvedev (eds.) (1997), Moscow: Geology and City, Publ. House “The Moscow Textbooks and Kartolithography”, Moscow, 400 pp. (in Russian).
• Skempton, A.W. (1961), Effective stress in soils, concrete and rocks. In: Pore Pressure and Suction in Soils, British Geotechnical Society, Butterworths, London, 4-16.
• Stokoe, K.H., S.H.H. Lee, and D.P. Knox (1985), Shear moduli measurements under true triaxial stresses. In: Advances in the Art of Testing Soils under Cyclic Conditions, Geotechn. Engin. Division, ASCE, New York, 166-185.
• Voznesensky, E.A. (1997), Soil Dynamic Behavior, MSU Publishers, Moscow, 288 pp. (in Russian).
• Voznesensky, E.A. (1999), Dynamic Instability of Soils and Rocks, URSS Publishers, Moscow, 264 pp. (in Russian).
• Zhigalin, A.D., and G.P. Lokshin (1991), Formation of vibrodynamic field in geological environment, Engineering Geology 6, 110-119 (in Russian).