DYNAMIC CALCULATION MODEL OF SHANGHAI SOFT SOIL
DYNAMIC CALCULATION MODEL OF SHANGHAI SOFT SOIL
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发表时间：
2000-06
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影响因子：
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通讯作者：
Y. Huang;Chen Zhu-chang;Zhou Hong-bo
中科院分区：
文献类型：
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作者：
Y. Huang;Chen Zhu-chang;Zhou Hong-bo
本文将上海饱和软土模型化为由固相和液相组成的两相多孔介质系统。根据上海饱和软土的共振柱试验和动三轴试验资料，建立了一套包含应力、应变、孔隙水压力和震陷的动力计算模型，用于计算土的地震反应。文中还详细介绍了动力计算模型中土体参数的确定过程。随后，动力有效应力分析与有限元法已被推荐用于预测土壤的地震反应。最后，利用所建立的动力计算模型，结合动力有效应力分析，对上海地区土层的地震反应进行了有限元预测，得到了一些有价值的结论。
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.