Numerical simulation and stability analysis of soil nailing support for deep foundation pit by FEM

ZHAO Jie; SHAO Long-tan

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Numerical simulation and stability analysis of soil nailing support for deep foundation pit by FEM

更新时间：2026-06-25

- Numerical simulation and stability analysis of soil nailing support for deep foundation pit by FEM
- Vol. 29, Issue 4, (2008)
- 作者机构：
  
  1. 大连理工大学土木水利学院,大连,116024
  2. 大连理工大学工程力学系,大连,116024
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB115
- Online First：10 July 2013，
  
  Published：2008
- 稿件说明：
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ZHAO Jie, SHAO Long-tan. Numerical simulation and stability analysis of soil nailing support for deep foundation pit by FEM[J]. 2008, 29(4).
DOI：

ZHAO Jie, SHAO Long-tan. Numerical simulation and stability analysis of soil nailing support for deep foundation pit by FEM[J]. 2008, 29(4). DOI：

摘要

在平面应变条件下，对土钉支护的基坑进行了有限元数值模拟，在此基础上采用有限元稳定分析方法评价基坑的稳定性。研究了土钉拉力及基坑变形的变化规律，土钉长度及布置方式变化对基坑变形和稳定性的影响。结果表明，当土钉足够长时，基坑的潜在滑动面与最大拉力作用点连线位置通常是一致的

Abstract

Under the condition of plane strain

a 2D elastoplastic FEM is used to analyze the behavior of a soil nailing support for deep foundation pit; and stability method based on slip surface FE stress is applied to evaluate the stability of the soil-nailed wall. The variations of tensile force of soil nails and deformation of foundation pit are studied. The influence of different lengths and layouts of soil nails on stability and deformation of foundation pit is also analyzed. The result indicates that the potential slip surface of foundation pit is consistent with the position of maximal tensile force when the soil nails are long enough.

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Related Institution

The R&D Center of Civil Engineering Technology, Dalian University

Department of Engineering Mechanics, Dalian University of Technology

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Guangdong Research Institute of Water Resources and Hydropower

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