土工基础

土工基础 ›› 2026, Vol. 40 ›› Issue (2): 243-246.

• 专题论述 • 上一篇    下一篇

粉质黏土地层暗挖非对称双连拱隧道施工数值模拟分析

苟开兵1，牛瑞2，李乃义1，王安源2，林超3，张治国1   

  1. (1.上海理工大学 环境与建筑学院，上海 200093；2.中铁隧道集团二处有限公司,河北廊坊 065000；3.华东交通大学轨道交通基础设施性能监测与保障国家重点实验室，南昌 330013)
  • 收稿日期:2024-02-29 修回日期:2024-03-12 出版日期:2026-04-30 发布日期:2026-04-22
  • 作者简介:苟开兵（1998-），男，硕士研究生，研究方向为隧道及地下建筑工程。
  • 基金资助:
    中铁隧道集团二处有限公司项目课题

Numerical Simulation Analysis of Asymmetric Double-Arch Tunnel Construction in Concealed Excavation of Silty Clay Stratum

GOU Kaibing1, NIU Rui2, LI Naiyi1, WANG Anyuan2, LIN Chao3, ZHANG Zhiguo1    

  1. (1.School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093;
    2.The Second Engineering Co. Ltd., China Railway Tunnel Group, Langfang 065000;
    3.State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University，Nanchang 330013)
  • Received:2024-02-29 Revised:2024-03-12 Online:2026-04-30 Published:2026-04-22

摘要： 针对粉质黏土地层下双连拱隧道施工塌方问题，以苏州国际快速物流通道工程为背景，考虑隧道地形、地质条件、施工阶段等因素，模拟了粉质黏土地层中双连拱隧道“三导洞法”施工开挖的全过程，为防止施工坍塌，隧道设计采用双连拱复合式衬砌结构来减小复杂地层对衬砌的影响，其中，以管幕、管棚和超前锚杆为超前支护，以锚杆、钢筋网、喷射混凝土和钢拱架为初期支护，以模筑钢筋混凝土衬砌为二次衬砌。对隧道周围土体位移以及应力分布进行了分析，验证了该工法的可行性和安全性，可为同类工程施工提供参考。


关键词: 粉质黏土地层, 非对称双连拱隧道, 数值模拟, 土体位移

Abstract: The difficult problem of landslides in doublearch tunnel construction under silty clay stratum is presented in this paper. The Suzhou International Rapid Logistics Corridor project is evaluated as a case history.  Based on numerical simulation, the excavation process of the “three-guideway method” for the construction of a double-arch tunnel in a silty clay stratum is simulated by considering factors such as tunnel topography, geological conditions, and construction stages. To minimize construction collapse, the tunnel design adopts the double-link arch composite lining structure to reduce the influence of complex strata on the lining. Among them, pipe curtains, pipe shed and overtopping anchor are used as overtopping support. Ground anchors, reinforcing mesh, shotcrete and steel arch are used as initial support. Finally, pouring reinforced concrete lining as secondary lining. The soil displacement and stress distribution around the tunnel were analyzed, and the feasibility and safety of the method were verified. The results of the study can provide reference for the construction of similar projects.

Key words: Silty Clay, Asymmetric Double-Arch Tunnel, Numerical Simulation, Soil Displacement

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