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The Shaking Table Model Test of Seismic Response for Shanghai Soft Soil and Three Dimensional Mumerical Fitting Analysis

WANG Guo-bo1,YANG Lin-de2,JI Qian-qian3(1.College of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education;Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;3.Commanding Post of Shanghai Tunnel & Bridge Construction,Shanghai 201209,China)  
Three-dimensional calculation model is established for the free-field shaking table model test,which is a part of the shaking table model test for typical subway station structure in soft soil in Shanghai.The model includes four aspects: the determination of calculation area,the choice of material constitutive models,the selection of dynamic boundary condition and the inputing of seismic wave.Three-dimensional fitting analysis on this model test by the calculation model is done.The results are compared with the test results and calculation results of 2-D model,and it shows a good coincide among three methods.The result indicates that the 3-D calculation model can be used to simulate the dynamic characteristic of model soil and provide a foundation to establish 3-D calculation method of seismic response for Shanghai soft soil.
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