| 杜丽惠,黄丽清.考虑围岩蠕变特性的轴对称有限元非线性分析[J].水利学报,2001,32(1):0085-0090 |
| 考虑围岩蠕变特性的轴对称有限元非线性分析 |
| The nonlinear axisymmetric finite element method for anlaysis of surrounding rock in consideration of creeping |
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| DOI： |
| 中文关键词: 轴对称 有限元 材料非线性 蠕变特性 开挖 衬砌 数值模拟中图分类号 |
| 英文关键词: axisymmetric finite element nonlinear creeping excavation lining numerical simulation |
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| 摘要点击次数: 2096 |
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| 中文摘要: |
| 本文采用轴对称非线性有限元方法分析竖洞开挖与混凝土的衬砌施工过程中围岩的应力应变，计算中引入破坏接近度的概念以判定材料的非线性及其破坏问题，分析了围岩的软化及其破坏形态，并进行了实际竖洞的蠕变分析。 |
| 英文摘要: |
| In this paper, the nonlinear axisymmetric finite element method is adopted to analyze the stree strain of surrounding rock of vertical tunnel in the process of excavation and lining. The failure approach concept is introduced in the discrimination of the non linearity and failure of the rock. The softening of the rock and the types of failure are simulated and the creeping of the tunnel is analyzed. |
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