Influence of foundation pit excavation on adjacent metro station and tunnel

JIA Fu-zi; WANG Li-feng; LU Wu-quan; YANG Kai-fang

doi:10.16285/j.rsm.2016.S2.085

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Influence of foundation pit excavation on adjacent metro station and tunnel

更新时间：2026-06-25

- Influence of foundation pit excavation on adjacent metro station and tunnel
- Vol. 37, Issue S2, Pages: 673-678(2016)
- 作者机构：
  
  浙江科技学院土木与建筑工程学院,浙江,杭州,310012
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.S2.085
  CLC： U452
- Online First：09 June 2018，
  
  Published：2016
- 稿件说明：
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JIA Fu-zi, WANG Li-feng, LU Wu-quan, et al. Influence of foundation pit excavation on adjacent metro station and tunnel[J]. 2016, 37(S2): 673-678.
DOI：

JIA Fu-zi, WANG Li-feng, LU Wu-quan, et al. Influence of foundation pit excavation on adjacent metro station and tunnel[J]. 2016, 37(S2): 673-678. DOI： 10.16285/j.rsm.2016.S2.085.

摘要

对基坑开挖期间近邻地铁车站和隧道变形等进行分析，总结基坑开挖期间近邻地铁车站、隧道变形的发展规律。以量化的形式定义表征隧道不均匀变形程度的不均匀变形参数，并对地铁车站引发的隧道近站部分不均匀变形分布及其大小预测进行研究。研究表明，基坑开挖期间地铁车站表现为上浮而近站隧道表现为沉降；基坑开挖期间地铁车站和近站隧道之间的位移差显著，对隧道结构的损伤严重；基坑开挖对近站隧道的影响范围约为基坑开挖深度的4倍；地铁站引发的近站隧道不均匀变形主要分布在距地铁站1倍基坑挖深的范围内，得到的分布预测公式可对隧道近站部分不均匀变形的大小和分布进行预测。所得结论及某工程参数A、B的取值可供类似工程参考。

Abstract

Based on the theoretical analysis of displacement of tunnel and station induced by the foundation pit excavation

the disciplinarians of tunnel and station are summarized. The uneven deformation parameter is defined in the form of quantization

and the influence of the station on uneven deformation of tunnel and its prediction are researched. The results show that the subway station is uplifted

but the tunnel subsided during the pit excavation. The differential displacement between tunnel and station are great

and it is serious damaged to tunnel lining. The affected range of tunnel is 4 times as much as the depth of pit excavation. The range of uneven deformation region of tunnel is 1 times as much as the depth of pit excavation. The obtained formula of can predict the size and distribution of the uneven deformation of the tunnel caused by station. The results of this paper can provide useful reference for similar projects.

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