| 连拱隧道拱顶沉降数值分析 |
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| 引用本文： | 肖林萍,李永树.连拱隧道拱顶沉降数值分析[J].测绘工程,2008,17(5):16-18. |
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| 作者姓名： | 肖林萍 李永树 |
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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;西南交通大学土木工程学院,四川,成都,610031 |
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| 摘 要： | 在隧道施工过程中，根据现场围岩变形的监测结果，可以及时分析与预测围岩稳定性。结合小金口连拱隧道监测数据，利用数值分析方法对Ⅲ类围岩拱顶沉降位移监测数据进行处理与分析，计算得出：采用Boltzman函数拟合分析方法，能够较好地反映连拱隧道施工过程中拱顶的沉降变化情况，并得到连拱隧道拱顶沉降的控制标准。
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| 关 键 词： | 连拱隧道 拱顶沉降 围岩变形 控制标准 |
Numerical analysis on the top subsidengce of double-arch tunnel |
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| XIAO Lin-ping,LI Yong-shu.Numerical analysis on the top subsidengce of double-arch tunnel[J].Engineering of Surveying and Mapping,2008,17(5):16-18. |
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| Authors: | XIAO Lin-ping LI Yong-shu |
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| Institution: | XIAO Lin-ping, LI Yong-shu ( School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China) |
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| Abstract: | According to result of monitored and measured surrounding rock deformation, stability of surrounding rock is analyzed and predicted in the construction of the tunnel. Arch-top subsidence is calculated and analyzed in surrounding rock types Ⅲ by monitored and measured data of XIAOJINKOU double-arch tunnel in the paper. Regression analysis by Boltzman function can reflect the change of arch-top subsidence in double-arch tunnel construction. So arch-top subsidence control base of double-arch tunnel has been suggested. |
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| Keywords: | double-arch tunnel arch-top subsidence surrounding rock deformation control base |
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