| 泰山庙隧道进口错落体成因机制与稳定性分析 |
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| 引用本文： | 李崇华,陈多才.泰山庙隧道进口错落体成因机制与稳定性分析[J].路基工程,2022,0(4):201-206. |
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| 作者姓名： | 李崇华 陈多才 |
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| 作者单位： | 中国公路工程咨询集团有限公司，武汉 430050 |
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| 摘 要： | 依托位于错落体和堆积体复杂地质区，且坡脚存在电站引水渠干扰，错落体底部位于雾渡河河床中的泰山庙隧道进口工程，在路线无更优方案情况下，为保证隧道在施工和运营期安全，通过对错落体成因分析和稳定性定性评价，尝试参照岩石折线滑动进行定量计算，对强度参数取值采用经验值和反算值来验算，得出隧道进口设计后的错落体总体处于稳定状态。错落体外侧松散堆积体通过简化Bishop法计算圆弧滑动面进行稳定性判定，为施工提出合理的处治措施。
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| 关 键 词： | 隧道 错落体 堆积体 稳定性分析 设计参数 监测 |
| 收稿时间： | 2022-06-07 |
Cause Mechanism and Stability Analysis of Staggered Falling Body at the Entrance of Taishanmiao Tunnel |
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| Abstract: | In relation to the entrance of Taishanmiao tunnel project which it is located in the complex geological area of staggered falling body and accumulation body and there is interference from the diversion channel of the power station at the foot of the slope, and the bottom of the staggered falling body is located in the riverbed of Wudu River, when there is no better scheme for the route, in order to ensure the safety of the tunnel during construction and operation, through the cause analysis and stability qualitative evaluation of staggered falling body, the quantitative calculation with reference to broken line sliding of rock is tried to make. Empirical value and inverse value are used to check the value of strength parameters. It is concluded that the staggered falling body after the tunnel inlet design is in an overall stable state. The stability of the loose accumulation body outside the staggered falling body is determined by calculating the circular sliding surface by the simplified Bishop method, putting forward reasonable treatment measures for construction and ensuring safety during construction. |
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