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山东大学学报 (工学版) ›› 2026, Vol. 56 ›› Issue (3): 15-24.doi: 10.6040/j.issn.1672-3961.0.2024.201

• 土木工程 • 上一篇    下一篇

软土基坑稳定性分析方法的研究进展

黄茂松1,2,谭廷震1,2,付臣志1,2,刘奕晖1,2   

  1. 1.岩土及地下工程教育部重点实验室(同济大学), 上海 200092;2.同济大学土木工程学院, 上海 200092)
  • 发布日期:2026-06-09
  • 作者简介:黄茂松(1965— ), 男, 浙江玉环人, 教授, 博士生导师, 博士, 主要研究方向为岩土工程. E-mail:mshuang@tongji.edu.cn
  • 基金资助:
    国家自然科学基金重点资助项目(51738010)

Research progress of stability analysis methods for excavations in clay

HUANG Maosong1,2, TAN Tingzhen1,2, FU Chenzhi1,2, LIU Yihui1,2   

  1. HUANG Maosong1, 2, TAN Tingzhen1, 2, FU Chenzhi1, 2, LIU Yihui1, 2(1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China;
    2. College of Civil Engineering, Tongji University, Shanghai 200092, China
  • Published:2026-06-09

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摘要： 针对软土基坑稳定性分析中的若干关键问题,简要评述基坑抗隆起稳定性问题在数值模拟及理论计算方面的研究现状,介绍在极限分析上限法与极限平衡法方面取得的一些最新研究成果。考虑在实际工程中挡墙刚度可能处于刚性或柔性两种情况,提出两种不同的上限解析机构,并与数值模拟方法进行对比验证。系统阐述国内规范采用的圆弧滑动法存在的问题,提出一种合理考虑圆弧滑动半径和极限弯矩的改进圆弧滑动法并证明其合理性。详细解释承压水地层中抗突涌稳定性规范验算方法存在的不足,介绍相应的改进计算方法。所提出的改进方法可为基坑规范的修订提供理论参考。

关键词: 软土基坑, 极限分析上限法, 圆弧滑动法, 承压水, 稳定性分析

Abstract: Focusing on key issues in the stability analysis of excavations in clay, numerical simulations and theoretical methods for basal heave stability were briefly reviewed, and recent advances in upper-bound limit analysis and limit-equilibrium methods were introduced. Considering the fact that the embedded wall could be rigid or flexible in engineering, two series of upper-bound mechanisms were proposed and verified by comparison with numerical simulation methods. In addition, this paper systematically clarified the problems existing in the circular sliding method adopted by domestic codes and proposed an improved circular sliding method. The proposed circular sliding method considered the circular radius and ultimate bending moment. The shortcomings of the checking method for stability against inrush in domestic codes were explained in detail, and corresponding improved checking methods were introduced. These methods could provide theoretical references for the revision of current excavation stability codes.

Key words: excavation in clay, upper bound limit analysis, circular sliding method, confined water, stability analysis

中图分类号: 

  • TU432
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