| 锦屏二级水电站交叉隧洞围岩稳定性分析 |
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| 引用本文： | 李旭升,高波,申玉生.锦屏二级水电站交叉隧洞围岩稳定性分析[J].岩土工程技术,2009,23(5):242-245,250. |
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| 作者姓名： | 李旭升 高波 申玉生 |
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| 作者单位： | 西南交通大学土木工程学院,四川成都,610031 |
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| 摘 要： | 锦屏二级水电站引水隧洞具有埋深大等复杂的地质情况，因此在已有隧洞的基础上开挖与之相交的主隧洞，主隧洞（特别是在交叉部处）围岩性质弱化并且围岩自身稳定性降低。因此结合高地应力区深埋隧洞工程，通过3D弹塑性有限元数值仿真模拟，并且通过模型试验，分析围岩在开挖中的应力释放及应力分布规律，为深埋隧洞交叉段监控量测系统的设计、施工方案优化及安全控制提供依据。
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| 关 键 词： | 交叉隧洞 有限元分析 模型试验 围岩稳定性分析 |
The Analysis of Stability of Surrounding Rock Inintersection Tunnel in Jinping Ⅱ Hydropower Station |
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| Li Xusheng,Gao Bo,Shen Yusheng.The Analysis of Stability of Surrounding Rock Inintersection Tunnel in Jinping Ⅱ Hydropower Station[J].Geotechnical Engineering Technique,2009,23(5):242-245,250. |
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| Authors: | Li Xusheng Gao Bo Shen Yusheng |
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| Institution: | Li Xusheng Gao Bo Shen Yusheng (School of Civil Engineering, Southwest jiaotong university,Chengdu 610031,Sichuan,China) |
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| Abstract: | The complex geological condition including great depth will bring about many engineering problems in Jinping Ⅱ Hydropower Station , so excavation of an main tunnel which is intersected with a tunnel can weaken the quality of surrounding rock（expecially in intersectoin）. Considering deeply-rock , we analyzed the mechanical of stress release and redistribution in the surrounding rock using 3D elastic plasticity finite element numerical and model experiment , This study offers references for design of the monitoring system , construction scheme optimization , and safe control of deeply buried tunnels. |
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| Keywords: | intersection tunnel finite element numerical analysis model experiment the analysis of stability of surround- ing rock |
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