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Volume 36 Issue zk2
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HUANG Zhao-wei, HUANG Xin, HU Xue-ying, QI Lin. Influence of foundation pit excavation on displacement of existing metro tunnels and technical measures[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 381-385. DOI: 10.11779/CJGE2014S2066
Citation: HUANG Zhao-wei, HUANG Xin, HU Xue-ying, QI Lin. Influence of foundation pit excavation on displacement of existing metro tunnels and technical measures[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 381-385. DOI: 10.11779/CJGE2014S2066
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Influence of foundation pit excavation on displacement of existing metro tunnels and technical measures

  • Tianjin Architecture Design Institute, Tianjin 300072, China

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  • Received Date: July 27, 2014
  • Published Date: July 27, 2014
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    • Abstract
  • Foundation pit excavation above metro will influence the displacement of the existing metro tunnel. Based on soil-structure interaction model, a three-dimensional analysis model for metro tunnels is established, which is used to analyze the influence of foundation pit excavation on the displacement of the existing metro tunnel. The displacement of metro tunnels is controlled using technical measures, which include soil reinforcement and block excavation. The results indicate that the displacement of metro tunnels will be changed because of foundation pit excavation. The displacement of metro tunnels can be controlled using soil reinforcement and block excavation, and soil reinforcement effect is the most obvious.
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    • References (7)
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    刘庭金. 基坑施工对盾构隧道的影响分析[J]. 铁道建设, 2008(2): 41-44. (LIU Ting-jin. Influence analysis of foundation pit construction on shield tunnel[J]. Railway Engineering, 2008(2): 41-44. (in Chinese))
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    汪彬彬. 基坑开挖对下方盾构隧道变形的影响[D]. 广州: 华南理工大学, 2010. (WANG Bin-bin. Underlying shield tunnel deformation effected by pit excavation[D]. Guangzhou: South China University of Technology, 2010. (in Chinese))
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    张 强. 开挖卸荷下既有地铁隧道的竖向变形及其控制研究[D]. 北京: 北京交通大学, 2012. (ZHANG Qiang. Influence and control on vertical deformation of an underlying tunnel due to excavation-induced unloading[D]. Beijing: Beijing Jiaotong University,2012. (in Chinese))
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