多层超软土大变形固结的有限差分解
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TU457


FDM for Large Strain Consolidation of Multi-Layers Super Soft Ground
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    摘要:

    对一维大变形固结方程及固结系数进行了讨论,在此基础上建立了以位移为控制变量物质描述下单向大变形固结方程的有限差分法方程,对其初始条件和边界条件进行有限差分离散,对不同超软土层间的边界进行连续性处理,最后形成了多层超软土大变形固结有限差分解的非线性方程组,并对其采用迭代法求解,在此基础上编制调试了计算程序LSCFDM作算例分析,得到与实测数据相一致的结果。

    Abstract:

    Follow in precursory relating documents, several equations of one dimension Large Strain Consolidation (LSC) and consolidation coefficients were discussed firstly. Based on this, a Finite Difference Method (FDM) equation was derived, which was the physical described LSC equation with variable displacement. Moreover, the initiate and boundary condition were dispersed by FDM, and the boundary of different layers of super soft soil was disposed of continuity. Finally,nonlinear group equations of LSC FDM solution was deduced for multi layers super soft ground by repeated method, and a FDM program of 1D nonlinear LSC analysis was compiled. Finally, a case showed a satisfied analysis result by LSCFDM.

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文海家 张永兴 柳源.多层超软土大变形固结的有限差分解[J].重庆大学学报,2003,26(6):101-104.

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  • 最后修改日期:2002-12-08
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