土工基础

土工基础 ›› 2025, Vol. 39 ›› Issue (5): 692-698.

• 工程实录 • 上一篇    下一篇

复杂环境下基坑施工对地铁隧道结构影响分析

李家平1,3，雷 丹2,3，杨石飞2,3，袁 钊2,3,4   

  1. （1.上海申通地铁集团有限公司，上海 200003；2.上海勘察设计研究院（集团）有限公司，上海 200093；3.上海市岩土与地下空间综合测试工程技术研究中心，上海 200093；4.同济大学 地下建筑与工程系，上海 200092）
  • 收稿日期:2023-07-26 修回日期:2023-08-29 出版日期:2025-10-31 发布日期:2025-10-30
  • 作者简介:李家平（1972-），男，教授级高工，研究方向为岩土工程、地下空间与隧道工程。
  • 基金资助:
    上海市启明星人才计划杨帆专项（22YF1427900）

Analysis of Influence of Deep Excavation on Subway Tunnel Structure in Complex Environment

LI Jiaping1,3, LEI Dan2,3, YANG Shifei2,3, YUAN Zhao2,3,4   

  1. (1.Shanghai Shentong Metro Co. Ltd., Shanghai 200003;
    2.SGIDI Engineering Consulting (Group) Co. Ltd., Shanghai 200093;
    3.Shanghai Engineering Research Centre of Geotechnical Test for Underground Space, Shanghai 200093;
    4.Department of Geotechnical Engineering, Tongji University, Shanghai 200092)
  • Received:2023-07-26 Revised:2023-08-29 Online:2025-10-31 Published:2025-10-30

摘要： 随着城市地下空间开发环境越来越复杂，临近地铁的基坑项目对运营隧道的影响也备受关注。以上海某临近地铁的基坑项目为依托，在施工过程中对隧道变形实测数据进行跟踪分析，并采用数值模拟方法分析了上方已有建筑叠加施工对隧道变形的影响情况，并对后续施工进行预测分析。研究表明，当基坑开挖深度小于隧道腰部埋深时，临近隧道呈现斜向上的“横鸭蛋”变形趋势；由于软土的触变性，隧道上方建筑对基坑施工期间的隧道变形影响不容忽视；过程中跟踪预测后续施工影响，并在关键节点及时采用侧向微扰动注浆方法有效控制了隧道的变形，为类似工程案例提供了借鉴。


关键词: 复杂环境, 运营隧道, 基坑施工, 变形控制

Abstract: With the increasingly complex development environment of the urban underground space, the impact of the deep excavation project near the subway on the operation of the tunnel has also attracted much attention. Based on a deep excavation project near a subway in Shanghai, the measured data of the tunnel deformation are evaluated during the construction process. The influence of the upper building on the tunnel deformation is analyzed by the numerical simulation method, and the subsequent construction is also predicted and analyzed. The research shows that when the excavation depth of the foundation is less than the tunnel waist embedment depth, the “horizontal laid duck egg” deformation trend is inclined upward near the tunnel. Due to the thixotropy of the soft soil, the influence of the buildings above the tunnel on the tunnel deformation during the deep excavation construction cannot be ignored. During the process, the impact of followup construction is tracked and predicted, and the lateral microdisturbance grouting method is timely adopted at key nodes to effectively control the deformation of the tunnel. This study provides reference for similar engineering cases.

Key words: Complex Environment, Operational Tunnel, Deep Excavation Construction, Deformation Control

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