| 浅埋暗挖隧道开挖变形规律的探讨 |
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| 引用本文： | 谢大鹏.浅埋暗挖隧道开挖变形规律的探讨[J].城市轨道交通研究,2008,11(9). |
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| 作者姓名： | 谢大鹏 |
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| 作者单位： | 同济大学交通运输工程学院,201804,上海 |
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| 摘 要： | 依托广州市地铁5、6号线区庄换乘车站的工程实际,进行了车站隧道中洞施工期间的地表沉降、洞内支护结构和围岩位移变形监测,分析了浅埋隧道暗挖法开挖施工过程中的各部位变形特征,对施工中出现的变形问题进行了深入的原因分析,在此基础上提出了针对性的施工控制技术措施.通过施工监控和优化控制,实现了合理拆除临时结构,减少了隧道在施工过程中的变形.分层、分段、分块、两次衬砌施工技术方案,使得开控、支护期间结构稳定和地表沉降均控制在设计规范允许范围之内.
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| 关 键 词： | 隧道施工 浅埋暗挖 沉降变形 施工控制 |
Excavation Deformation Characteristics of Shallow Burying and Surface Excavated Tunneling in Guangzhou City |
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| Xie Dapeng.Excavation Deformation Characteristics of Shallow Burying and Surface Excavated Tunneling in Guangzhou City[J].Urban Mass Transit,2008,11(9). |
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| Authors: | Xie Dapeng |
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| Institution: | Xie Dapeng Traffic , Transportation Engineering School,Tongji University,201804,Shanghai,China |
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| Abstract: | Based on a certain metro station project,a sys- tematic monitoring plan including the surface settlement, the support structure and the adjacent rock deformation in the excavation stage are first performed,then the charac- teristics of each deformation are analysed combined with its respective construction.After a thorough research on the deformation reasons, some aimed construction technologies are proposed sequentially,hoping a safety operation envi- ronment under complex conditions can be finally ensured... |
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| Keywords: | tunnel construction shallow burying and surface excavation settlement construction control |
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