| 基于有限元的浅埋隧道受力分析及变形破坏处理 |
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| 引用本文： | 王朋朋,;王亚辉.基于有限元的浅埋隧道受力分析及变形破坏处理[J].水运科技信息,2014(4):112-114. |
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| 作者姓名： | 王朋朋 ;王亚辉 |
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| 作者单位： | [1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550081; [2]长安大学地质工程与测绘学院,西安710054 |
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| 摘 要： | 采用有限元软件对浅埋隧道受力进行分析，分别从垂直向位移、主应力及剪应变来分析隧道围岩受力情况，分析结果与实际变形破坏一致。垂直向位移最大发生在拱顶，主应力最大集中在拱顶及拱脚，剪应变最大在拱脚。根据分析结果制定合理的隧道变形破坏处理方案，处理后，隧道变形较小，结构稳定。
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| 关 键 词： | 浅埋隧道 变形破坏 垂直向位移 主应力 |
Stress Analysis and Deformation Failure Treatment of the Shallow Tunnel Tunnels Based on the Finite Element |
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| Institution: | Wang Pengpeng , Wang Yahui (1. Guizhou Communication Planning Survey and Design Academe, Guiyang550001, China; 2. Chang＇an University School of Geology Engineering and Geomatics, Xi＇an 710054, China) |
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| Abstract: | Using the finite element software, the force of the shallow tunnels is analyzed in this paper. The vertical displacement, the principal stress and shear strain of the tunnel are analyzed respectively. The results agree with the actual results of deformation and failure mode. The analysis and calculation show that the maximum vertical displacement occurs in the vault, the maximum principal stress concentration in the vault and the arch foot, and the maximum shear strain occurs in the arch foot respectively. According to the results, a reasonable program of tunnel deformation and failure processing is proposed. After the processing, the tunnel deformation is decreased and the structural stability is guaranteed. |
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| Keywords: | shallow tunnel deformation failure vertical displacement principal stress |
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