| 昆明白泥井3号隧道围岩稳定性FLAC3D模拟 |
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| 引用本文： | 吴传斌,施斌,孙宇,赵永贵.昆明白泥井3号隧道围岩稳定性FLAC3D模拟[J].水文地质工程地质,2004,31(6):52-55. |
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| 作者姓名： | 吴传斌 施斌 孙宇 赵永贵 |
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| 作者单位： | 1. 南京大学地球环境计算工程研究所,南京,210093
2. 云南航天新技术工程有限公司,昆明,650217 |
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| 基金项目： | 国家教育部重点项目资助(01086);国家杰出青年科学基金项目(40225006) |
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| 摘 要： | 应用FLAC^3D数值模拟软件对昆明白泥井3号隧道围岩稳定性进行了分析和评价。结果表明隧道支护后围岩的最大变形出现在隧道右侧拱顶，为1．00cm；隧道支护后左侧拱和右侧拱脚处剪应变明显增大，为应力集中区；围岩可以通过自身应力、应变和能量的调整，使整个隧道围岩处于稳定状态；同时也表明FLAC^3D用于隧道围岩变形分析是可行的。
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| 关 键 词： | FLAC^3D 摩尔一库仑准则 围岩稳定性 白泥井3号隧道 |
| 文章编号： | 1000-3665(2004)06-0052-04 |
| 修稿时间： | 2004年3月8日 |
Numerical simulation analyses on stability of the No.3 tunnel of Bainijing in Kunming by FLAC3D |
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| WU Chuan-bin,SHI Bin,SUN Yu,ZHAO Yong-gui.Numerical simulation analyses on stability of the No.3 tunnel of Bainijing in Kunming by FLAC3D[J].Hydrogeology and Engineering Geology,2004,31(6):52-55. |
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| Authors: | WU Chuan-bin SHI Bin SUN Yu ZHAO Yong-gui |
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| Institution: | WU Chuan-bin~1,SHI Bin~1,SUN Yu~2,ZHAO Yong-gui~2 |
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| Abstract: | The No.3 tunnel surrounding rock stability of Bainijing in Kunming is analyzed and evaluated by numerical simulation program FLAC~(3D),on this account reasonable conclusions are available. Firstly,the maximal deformation of 1.00cm occurs at the right crown after supporting of the tunnel. Secondly,the left arch and the right arch spring generate the regions of stress concentration for the shear strain distinctly increasing.Thirdly,the mechanical equilibrium state of the surrounding rock is reached by readjusting its stress, strain and energy.Finally,FLAC~(3D) is very capable of solving the deformation analysis of the tunnel surrounding rock. |
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| Keywords: | tunnel surrounding rock FLAC~(3D) Mohr-Coulomb rule stability analysis the No 3 tunnel of Bainijing |
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