| 隧道开挖过程中层状围岩稳定性分析 |
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| 引用本文： | 任海军.隧道开挖过程中层状围岩稳定性分析[J].探矿工程,2007,34(4):54-59. |
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| 作者姓名： | 任海军 |
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| 作者单位： | [1]长江科学院监理公司,湖北武汉430030 |
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| 摘 要： | 结合工程实例，基于块体的失稳条件和层状岩体的破坏条件，分析不同地质构造形态岩层下，隧洞开挖过程中围岩的稳定性。并根据洞室围岩产状与开挖几何边界的关系，提出围岩易破坏点的位置确定方法。最后，通过对工程实例中围岩塌方的统计，分析塌方围岩原因，进一步验证层状岩体中围岩的稳定性评价。
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| 关 键 词： | 隧道开挖 层状围岩 稳定性 塌方 董箐水电站 |
| 收稿时间： | 2006/10/30 0:00:00 |
| 修稿时间： | 2006/10/30 0:00:00 |
The Analysis on Stability of Stratified Surrounding Rock in the Tunneling Process |
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| REN Hai-jun.The Analysis on Stability of Stratified Surrounding Rock in the Tunneling Process[J].Exploration Engineering(Drilling & Tunneling),2007,34(4):54-59. |
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| Authors: | REN Hai-jun |
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| Institution: | REN Hai-jun ( Yangtze River Sci- entific Research Institute, Wuhan Hubei 430010., China) |
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| Abstract: | According to the unstable condition of the displaceable block and the breakage term of the stratified rock, this paper analyzed the stability of surrounding rock during the excavating process in different geological structures. And according to the relation between rock occurrence of the underground chamber and geometrical boundary of excavation, the paper gave the method to positioning breakage. Finally, by the analysis on the cause of collapse in engineering, evaluation on stability of surrounding rock in stratified rock was further tested. |
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| Keywords: | tunneling stratified surrounding rock stability collapse Dongjing hydropower station |
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