Couple analysis and numerical simulation of large deformation of deep foundation pit

LUO Xiao-hui; BAI Shi-wei

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Couple analysis and numerical simulation of large deformation of deep foundation pit

更新时间：2026-06-25

- Couple analysis and numerical simulation of large deformation of deep foundation pit
- Vol. 24, Issue 6, (2003)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所,湖北,武汉,430071
  2. 华中科技大学土木工程与力学学院,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473.2
- Online First：19 August 2014，
  
  Published：2003
- 稿件说明：
移动端阅览
LUO Xiao-hui, BAI Shi-wei. Couple analysis and numerical simulation of large deformation of deep foundation pit[J]. 2003, 24(6).
DOI：

LUO Xiao-hui, BAI Shi-wei. Couple analysis and numerical simulation of large deformation of deep foundation pit[J]. 2003, 24(6). DOI：

摘要

深基坑开挖的时空效应既与深基坑工程支护设计、施工方案有关，又依赖于场地岩土介质的工程特性。依据Biot固结理论与有限变形的理论基础，采用经典的变分原理方法推导了基于大变形Lagrangian描述的U. L方法——Biot固结理论耦合系统方程及其有限元数值模拟方法。根据工程实例进行大小变形计算的比较以及深基坑开挖的时空效应分析，得出开挖时空效应显著、小变形计算的安全性不足的结论。

Abstract

Time-space dependent effect in process of excavating deep foundation pit is in close relationship with the design of support structure and construction sequence and organization but is mostly dependent on engineering behaviors of soil on site. According to Biot’s consolidation theory and large deformation theory

a coupled model and the method of FEM numerical simulation can be derived with classical variation principle

which is based on Updated Lagrangian formulation of large deformation

As for a real example of engineering

the comparison of the computing results between large deformation and small deformation is shown; and time-space dependent effect of excavating deep foundation pit is analyzed. It is the main conclusion that time-space dependent effect in process of excavation is remarkable and the security of pit using small deformation method is lack.

关键词

Keywords

references

Views

1199

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Application of modified beam-spring FEM to prestressed anchor flexible retaining wall

压气储能地下内衬储气库的开裂与屈服特性研究

动态CO2溶蚀作用下节理灰岩剪切力学性能及工程应用研究

水分入渗对青藏高原东部德马高速粉质黏土层地下冰融化影响机制

导洞条件下隧洞围岩应变能调整与破坏规律研究

Related Author

JIA Jin-qing

CHEN Guo-zhou

MENG Xiang-bo

Related Institution

Structural engineering institute of State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology

College of Communications, Ludong University

AI问答

⁰