| 浅埋偏压小净距隧道开挖顺序研究 |
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| 引用本文： | 王建华,陈力华,张蕾.浅埋偏压小净距隧道开挖顺序研究[J].公路交通技术,2011(1):99-101. |
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| 作者姓名： | 王建华 陈力华 张蕾 |
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| 作者单位： | 招商局重庆交通科研设计院有限公司;中国人民解放军后勤工程学院军事建筑工程系; |
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| 基金项目： | 重庆市自然科学基金(CSTC,2009BB6226) |
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| 摘 要： | 采用改进的有限元强度折减法计算某浅埋偏压小净距隧道2种开挖方式在各个施工阶段的安全系数大小.比较这些安全系数,找到2种开挖方式在整个开挖过程中最容易产生破坏的施工步,得出浅埋偏压小净距隧道先开挖深埋侧可避免出现较危险的施工状态这一结论,希望对研究对类似工程的施工具有一定的指导意义.
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| 关 键 词： | 开挖顺序 有限元强度折减法 安全系数 |
Research on Excavation Sequence of Shallow-depth Unsymmetrical Loading Small Spacing Tunnel |
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| WANG Jianhua,CHEN Lihua,ZHANG Lei.Research on Excavation Sequence of Shallow-depth Unsymmetrical Loading Small Spacing Tunnel[J].Technology of Highway and Transport,2011(1):99-101. |
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| Authors: | WANG Jianhua CHEN Lihua ZHANG Lei |
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| Institution: | WANG Jianhua1,CHEN Lihua1,ZHANG Lei2 |
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| Abstract: | The modified FEM Strength Reduction Method is adopted to calculate the safety factors of two excavation modes during various construction phases in some shallow-depth unsymmetrical loading small spacing tunnel.By comparing these safety factors,this paper finds out the construction steps that are easiest to be damaged by the above two excavation modes during excavation,and draws a conclusion that excavating deep-buried side first of the shallow-depth unsymmetrical loading small spacing tunnel can avoid occur... |
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| Keywords: | excavation sequence FEM Strength Reduction Method safety factor |
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