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《Journal of Tongji University》 2000-03
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Dynamic Calculation Model of Shanghai Soft Soil

HUANG Yu 1, CHEN Zhu-chang 1, ZHOU Hong-bo 2 (1.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2.Shanghai Building Science Institute, Shanghai 200032, China)  
In this paper, Shanghai saturated soft soil is modeled as a two-phase porous media system consisting of solid and fluid phases. On the basis of resonant column test and dynamic triaxial test data of Shanghai saturated soft soil, the dynamic calculation model including a set of relationships of stress, strain, pore water pressure and earthquake subsidence is developed to compute the seismic response of soil. The procedure to identify soil constants for the dynamic calculation model is also reported in detail. Subsequently, a dynamic effective stress analysis with the finite element method has been recommended to predict the seismic response of soil. Finally, the developed dynamic calculation model together with the dynamic effective stress analysis is utilized to predict the seismic response of Shanghai soil strata through the finite element method and some valuable conclusions are obtained from the results.
【Fund】: 上海市建设技术发展基金资助项目
【CateGory Index】: TU43
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