土工基础

土工基础 ›› 2025, Vol. 39 ›› Issue (4): 558-564.

• 工程实录 • 上一篇    下一篇

超大深基坑施工对邻近地铁结构影响的数值分析

刘勇志1, 巩 胜2，成潇博3，汪国权1，姚华彦3   

  1. （1.合安高铁股份有限公司，合肥 230601；2.中铁第四勘察设计院集团有限公司，武汉 430063；3.合肥工业大学土木与水利工程学院，合肥 230009）
  • 收稿日期:2024-05-16 修回日期:2024-07-30 出版日期:2025-08-31 发布日期:2025-08-27
  • 作者简介:刘勇志（1984-）,男,硕士,高级工程师,研究方向为铁路及交通工程施工与管理。

Numerical Analysis of the Impact of Super Deep Excavation Construction on Adjacent Subway Structures

LIU Yongzhi1, GONG Sheng2, CHENG Xiaobo3, WANG Guoquan1, YAO Huayan3   

  1. (1.He’an High-Speed Railway Co. Ltd., Hefei 230601;
    2.China Railway Siyuan Survey and Design Institute Group Co. Ltd., Wuhan 430063;
    3.School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009)
  • Received:2024-05-16 Revised:2024-07-30 Online:2025-08-31 Published:2025-08-27

摘要： 以合肥西站东广场深基坑为例，利用PLAXIS3D软件建立了基坑三维数值模型，考察了复杂环境深基坑施工对邻近地铁3号线轨道交通结构的影响。分析表明，西站东广场基坑施工诱发邻近地铁3号线合肥西站车站主体结构产生的水平位移、竖向沉降分别为0.87 mm、0.80 mm；出入口结构产生的水平位移最大值为2.60 mm、竖向沉降最大值2.11 mm；邻近地铁3号线合肥西站附近区间隧道产生的水平位移、竖向沉降分别为0.58 mm、0.54 mm，所有变形均满足要求，研究结果可为本地区同类工程的设计与施工提供了科学的工程案例。


关键词: 深基坑, 邻近地铁, 侧向位移, 竖向沉降

Abstract: The deep excavation case history of the East Square of Hefei West-Railway-Station is presented in this paper. A three-dimensional numerical model of deep excavation was established by using PLAXIS3D software to investigate the impact of deep excavation construction in a complex environment on the adjacent rail transit structure of Metro Line No. 3. The analysis shows that the deep excavation the East Square of the West-Railway-Station induced horizontal displacement and vertical settlement of 0.87mm and 0.80mm respectively. The maximum horizontal displacement and vertical settlement of the entrance and exit structure were 2.60mm and 2.11mm respectively; the horizontal displacement and vertical settlement of the section tunnel near Hefei West-Railway-Station adjacent to Metro Line No. 3 were 0.58mm and 0.54mm respectively. All deformations met the requirements. The research results provide a scientific engineering case for the design and construction of similar projects in this area.

Key words: Deep Excavation, Adjacent to the Subway, Lateral Displacement, Settlement

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