【摘要】 该文运用三维有限差分软件FLAC3D(Fast Lagrangian Analysis of Continua)对水泥土桩加固的液化砂土地基建立模型并进行地震响应分析,从计算机数值模拟的角度对水泥土桩加固模型地基竖向位移、超静孔隙水压力、孔压比、剪应变增量、接触面剪力及表面加速度作了较系统地分析,总结了这些参数的变化规律,得到了一些有价值的结论,对实际工程有一定的指导意义。更多还原

【Abstract】 The three-dimensional finite difference program FLAC3D(Fast Lagrangian Analysis of Continua) is used to establish the model of the improved foundation soil by cement piles and to analyze seismic response.From the point of the numerical analysis,it adopts a visualized way to make a systematic analysis about the vertical displacement,the excess pore water pressure,the pore pressure ratio,the shear strain increment,the shear stress on interface elements and the surface acceleration.It helps us to obtain some valuable conclusions by summarizing the changing patterns of above parameters.It has definite instruct meaning for practical projects in the future.更多还原