| 赵维炳,陈永辉,龚友平.平面应变有限元分析中砂井的处理方法[J].水利学报,1998,29(6):0053-0058 |
| 平面应变有限元分析中砂井的处理方法 |
| A methodology for modeling sand-drain ground in plain strain analysis |
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| DOI： |
| 中文关键词: 砂井 固结 平面应变有限元 砂墙 |
| 英文关键词: Sand-drain consolidation plane strain FEM sand-wall |
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| 中文摘要: |
| 为了能用平面应变有限元来分析砂井地基，本文首先推导出了砂墙地基(砂井地基在平面应变条件下的表现形式)双向渗流等应变固结理论解，然后将此解与巴隆轴对称固结理论解相比较，得到砂井地基平面应变情况和轴对称情况之间的等效公式.此公式即考虑了地基水平变形，也考虑了砂井的涂抹作用.这种等效方法能方便、准确地用于砂井地基的平面应变有限元分析之中。 |
| 英文摘要: |
| A new method is described for consolidation analysis of modelling sand-drain ground in plain strain finite element analyses. First this paper presents two-way seepage consolidation solutions of sand-wall ground, based on the assumption of equal strain boundary conditions. Second, comparisons of the solutions and Baron's axisymmetric consolidation theoretical solutions are conducted to find an equivalent and matching method for plane strain analyses and axisymmetric analyses of sand-drained ground. The effects of both the horizontal deformation and smear are considered in the matching procedure. The method introduced can be applied conveniently and accurately to analyze sand-drain ground by plane strain FEM. |
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