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王祥秋, 杨林德, 高文华. 含软弱夹层层状围岩地下洞室平面非线性有限元分析[J]. 岩土工程学报, 2002, 24(6): 729-732.
引用本文: 王祥秋, 杨林德, 高文华. 含软弱夹层层状围岩地下洞室平面非线性有限元分析[J]. 岩土工程学报, 2002, 24(6): 729-732.
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WANG Xiangqiu, YANG Linde, Gao Wenhua. 2-D nonlinear FEM analysis for underground openings locatedin the layered rock mass with softening joints[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(6): 729-732.
Citation: WANG Xiangqiu, YANG Linde, Gao Wenhua. 2-D nonlinear FEM analysis for underground openings locatedin the layered rock mass with softening joints[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(6): 729-732.
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含软弱夹层层状围岩地下洞室平面非线性有限元分析

2-D nonlinear FEM analysis for underground openings locatedin the layered rock mass with softening joints

    摘要
  • 摘要: 对含软弱夹层的层状围岩建立有限元计算模型,提出层状岩体与软弱夹层按横观各向同性材料,层间接触面则以带转动自由度的Goodman接触面单元进行摸拟,通过对工程实测数据和弹塑性非线性有限元计算结果进行对比分析证明其是合理的。

     

    Abstract: A FEM model was established for the layered rock mass with softening joints. A method was put forward in which the layered rock mass and the soften joint were simulated by transversal isotropic material and a kind of rotational Goodman interface element was proposed to simulate the behavior of interface between the softening joint and the layered rock mass. The results of FEM were compared with the date measured in situ and it is shown that they matched with each other very well,so that this kind of analytical method is rational. 

     

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