将上海饱和软土视为由固相和液相组成的两相饱和多孔介质 .根据共振柱试验、动三轴试验 ,提出一种能够全面考虑应力、应变、振动孔隙水压力、震陷的上海饱和软土等效线性化动力计算模型 ,并进行了较为详细的参数研究 .然后将其与Biot动力固结方程相结合 ,建立了土体有效应力动力计算方法 .最后应用该方法对上海土层进行了地震反应分析 ,并得到一些有益的结论 Shanghai saturated soft soil is regarded as a two-phase saturated porous medium composed of solid phase and liquid phase.According to the resonance column test and the dynamic triaxial test, a new type of saturated porous medium with stress, strain, vibration and pore pressure, Equivalent linear dynamic model of saturated soft soil is proposed, and a detailed parametric study is carried out. Then, combining with the Biot dynamic consolidation equation, an effective stress-dynamic calculation method is established. Finally, Seismic response analysis was carried out, and some useful conclusions were obtained