| 断层影响下隧道围岩稳定性的数值分析 |
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| 引用本文： | 崔芳,高永涛,吴顺川.断层影响下隧道围岩稳定性的数值分析[J].公路,2011(9). |
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| 作者姓名： | 崔芳 高永涛 吴顺川 |
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| 作者单位： | 北京科技大学土木与环境工程学院 北京市 100083 |
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| 摘 要： | 断层等软弱结构面是隧道工程中最常见的一类规模较大的地质不连续面。诸多工程实践和研究表明,隧道围岩的变形与破坏大多受到断层等软弱结构面的控制。结合大华岭隧道施工过程,根据隧址区断层实际走向、断层面产状与隧道轴线不同夹角,利用基于有限元方法的岩土与隧道分析系统(MIDAS/GTS)对断层影响下的隧道围岩稳定性进行数值模拟分析,以DX(V)位移等值线数据分析为例,分析了特定施工段支护前后沉降对比及位移量,讨论了围岩和支护体系的结构状态及工程效果。该方法可为同类隧道设计、施工和研究提供有益借鉴。
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| 关 键 词： | 隧道工程 断层 围岩稳定 数值分析 |
Numerical Analysis and Research on Surrounding Rock Stability of Cave Tunnel Affected by Fault Crush Belts |
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| CUI Fang,GAO Yong-tao,WU Shun-chuan.Numerical Analysis and Research on Surrounding Rock Stability of Cave Tunnel Affected by Fault Crush Belts[J].Highway,2011(9). |
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| Authors: | CUI Fang GAO Yong-tao WU Shun-chuan |
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| Institution: | CUI Fang,GAO Yong-tao,WU Shun-chuan(School of Civil and Environmental Engineering,Beijing University of Science and Technology,Beijing 100083,China) |
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| Abstract: | Weak structural planes such as fault crush belts are typical defective geological discontinuity plane,which are often encountered and must be solved effectively in tunnel engineering.Many correspon-ding cases and studies show that the deformation and failure of tunnel surrounding rock are mainly controlled by weak structural planes,while the mechanism of this control is still an ambiguous question.According to the fault crush belts' actual trend,occurrence and the cave tunnel axis' different included angle ... |
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| Keywords: | tunnel engineering fault crush belts surrounding rock stability numerical analysis |
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