| 基于流-固耦合效应软弱围岩隧道CRD法开挖变形分析 |
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| 引用本文： | 蒙军.基于流-固耦合效应软弱围岩隧道CRD法开挖变形分析[J].路基工程,2016,0(2):169-174. |
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| 作者姓名： | 蒙军 |
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| 作者单位： | 广州诚安路桥检测有限公司, 广州 510000 |
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| 摘 要： | 以广东某高速公路弱质围岩隧道为工程背景,基于流-固耦合分析相关理论,对弱质围岩隧道CRD法开挖进行稳定性分析。运用FLAC3D软件分别在考虑渗流效应和不考虑渗流效应时,进行三维数值模拟,得到了相应的孔隙水压力和位移场变化特征,研究了渗流效应对隧道CRD法开挖过程中位移场的影响和在渗流效应下CRD法开挖隧道的变形控制。
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| 关 键 词： | 弱质围岩隧道 流-固耦合 CRD法 变形分析 数值模拟 |
| 收稿时间： | 2019-11-09 |
Analysis of Deformation for CRD Excavation of Weak Rock Surrounding Tunnel Based on Fluid-solid Coupling Effect |
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| Abstract: | With the weak surrounding rock tunnel in an expressway in Guangdong Province as the background, relevant theories and stability of weak surrounding rock tunnel in CRD method excavation are analyzed based on fluid-solid coupling. The FLAC3D software is adopted to respectively perform 3D numerical simulation when considering/not considering seepage effect. The corresponding porewater pressure and displacement characteristics are obtained, the influence of seepage effect on displacement in CRD method excavation process is studied and the deform control of CRD method excavation tunnel under seepage effect is studied. |
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