| 大跨度分岔隧道施工优化与地表沉降控制 |
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| 引用本文： | 刘强,漆泰岳. 大跨度分岔隧道施工优化与地表沉降控制[J]. 地下空间与工程学报, 2010, 6(5) |
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| 作者姓名： | 刘强 漆泰岳 |
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| 作者单位： | 西南交通大学土木工程学院,成都,610031;西南交通大学土木工程学院,成都,610031 |
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| 摘 要： | 为了探寻到能确保大跨度分岔隧道施工过程中使地表沉降控制在所要求的范围内的最优施工方案,首先采用数值模拟方法,对6种工法进行优化比选,初步确定工法1为最优工法,并在此基础上,对引起地表沉降变形显著增大的汇合段的开挖进行了进一步优化,提出了4步工法、5步工法、6步工法、7步工法和8步工法等5种方案,分析了因施工工序的不同而引起的地表沉降变形的规律,提出了8步工法为最优的方案,并对引起地表沉降突变的关键工序采取了相应的技术对策。
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| 关 键 词： | 隧道工程 地表沉降 数值模拟 分岔隧道 优化分析 |
Construction Optimization of Large-Span Bifurcation Tunnel and Control of Ground Subsidence |
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| Liu Qiang,Qi Taiyue. Construction Optimization of Large-Span Bifurcation Tunnel and Control of Ground Subsidence[J]. Chinese Journal of Underground Space and Engineering, 2010, 6(5) |
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| Authors: | Liu Qiang Qi Taiyue |
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| Affiliation: | Liu Qiang,Qi Taiyue (School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to choose the optimum construction method that is able to control the ground subsidence within the requested scope in the process of construction of a large-span bifurcation tunnel,a numerical simulation analysis is applied to analyze the ground subsidence caused by the construction of the bifurcation tunnel,and on this basis,a further analysis is taken to optimize the excavation process of the bifurcation tunnel which causes a significant increase of the ground subsidence during the construction.F... |
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| Keywords: | tunnel engineering ground subsidence numerical simulation bifurcation tunnel optimization analysis |
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