| 大跨小净距隧道合理开挖方法与支护参数对比研究 |
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| 引用本文： | 王更峰,熊晓晖,张永兴,王桂林.大跨小净距隧道合理开挖方法与支护参数对比研究[J].公路交通科技,2011,28(3):101-107. |
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| 作者姓名： | 王更峰 熊晓晖 张永兴 王桂林 |
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| 作者单位： | 重庆大学土工程学院,重庆,400045 |
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| 摘 要： | 结合魁岐大跨小净距隧道工程实践,建立了大跨小净距隧道施工动态有限元分析程序,对不同围岩条件下隧道施工方案进行了数值模拟分析.分析中模拟了CRD法、双侧壁导坑法、弧形导坑预留核心土法、台阶法4种开挖方案,对拱顶下沉、水平收敛、地表沉降、中间岩柱应力和围岩稳定性等进行了对比分析,比选确定出不同围岩等级条件下大跨小净距隧道合...
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| 关 键 词： | 隧道工程 有限元分析 开挖方法 支护参数 安全净距 |
Comparative Study of Rational Excavation Method and Support Parameter for Large-span Small-spacing Tunnel |
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| WANG Gengfeng,XIONG Xiaohui,ZHANG Yongxing,WANG Guilin.Comparative Study of Rational Excavation Method and Support Parameter for Large-span Small-spacing Tunnel[J].Journal of Highway and Transportation Research and Development,2011,28(3):101-107. |
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| Authors: | WANG Gengfeng XIONG Xiaohui ZHANG Yongxing WANG Guilin |
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| Institution: | WANG Gengfeng,XIONG Xiaohui,ZHANG Yongxing,WANG Guilin(School of Civil Engineering,Chongqing University,Chongqing 400045,China) |
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| Abstract: | According to the construction conditions of Kuiqi large-span small-spacing tunnel,a finite element analysis program was established to simulate the tunnel construction process under the condition of various surrounding rocks.In the program,the cross diaphragm method,double-heading construction method,arc-heading reservation core soil method and benching tunneling method were simulated,and settlements of vault and ground,level convergence,stress of the interspace rock and stability of surrounding rock were a... |
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| Keywords: | tunnel engineering finite element analysis excavation method support parameter safe spacing |
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