| 地铁基坑开挖对临近隧道的影响及措施分析 |
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| 引用本文： | 韩雪峰,崔青玉. 地铁基坑开挖对临近隧道的影响及措施分析[J]. 工程建设与设计, 2012, 0(5): 161-163,166 |
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| 作者姓名： | 韩雪峰 崔青玉 |
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| 作者单位： | 1. 中铁南方投资发展有限公司,广东深圳,518000
2. 北京城建设计研究总院深圳分院,广东深圳,518052 |
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| 摘 要： | 城市轨道交通的快速发展,使新建车站或隧道越来越多的临近或穿越既有线路.为解决新建地铁车站基坑施工对先行施工隧道的影响及对策,依托深圳地铁5号线太安站和相邻区间隧道工程,采用FLAC有限差分软件,计算分析基坑开挖过程中隧道和基坑围护结构的变形情况及相应的对策.研究结果表明:为有效控制邻近隧道的位移,应加强控制基坑坑外土体的水平位移,设计中应对临近隧道段车站围护结构进行加强；基坑开挖过程中应对隧道进行临时加固.
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| 关 键 词： | 基坑 开挖 临近隧道 影响 措施 |
Analysis on the Influence of the Foundation Pit Excavation to the Adjacent Tunnel and Corresponding Measures |
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| HAN Xue-feng , CUI Qing-yu. Analysis on the Influence of the Foundation Pit Excavation to the Adjacent Tunnel and Corresponding Measures[J]. Construction & Design for Project, 2012, 0(5): 161-163,166 |
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| Authors: | HAN Xue-feng CUI Qing-yu |
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| Affiliation: | 1.China Railway South Investment & Development Co.Ltd.,Shenzhen 518000,China;2.Shenzhen Branch of Beijing Urban Engineering Design & Research Institute Co.Ltd.,Shenzhen 518052,China) |
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| Abstract: | With the instant development of the Rail Transit,more and more new stations and tunnels approach and cross the existing Metro line.The deformation of the tunnel and the retaining structure of the foundation pit of Taian station are analyzed by means of FLAC finite element method,so as to minimize the influence of the excavation of the foundation pit to the existing tunnel.The study results show that the horizontal deformation of the soil outside the pit should be controlled.The retaining structure nearing the existing tunnel should be enhanced and the tunnel should be temporarily reinforced during the excavation of the pit. |
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| Keywords: | foundation pit excavation adjacent tunnel influence measures |
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