Finite element analysis of temperature stress in strut of foundation pit

LU Pei-yi; HAN Li-jun; YU Yong

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Finite element analysis of temperature stress in strut of foundation pit

更新时间：2026-06-25

- Finite element analysis of temperature stress in strut of foundation pit
- Vol. 29, Issue 5, (2008)
- 作者机构：
  
  天津大学土木工程系,天津,300072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU472
- Online First：24 July 2013，
  
  Published：2008
- 稿件说明：
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LU Pei-yi, HAN Li-jun, YU Yong. Finite element analysis of temperature stress in strut of foundation pit[J]. 2008, 29(5).
DOI：

LU Pei-yi, HAN Li-jun, YU Yong. Finite element analysis of temperature stress in strut of foundation pit[J]. 2008, 29(5). DOI：

摘要

在采用有限元方法模拟基坑开挖过程中支护结构与土的相互作用的基础上，提出将温度场耦合到应力场中来分析基坑支护支撑温度效应。结合工程实例，采用修正剑桥弹塑性模型并考虑开挖过程模拟支撑温度效应，分析了不同施工阶段的温度变化对支撑温度应力的影响，指出支撑的温度应力应按照各种工况的最不利组合进行设计。得出在温度变化较大时，应将温度效应作为一种工况予以考虑等结论。

Abstract

At present

the finite element method is adopted to simulate the interaction between retaining structure and soil during the pit excavation. Based on it

the authors put forward a method which couples the temperature field to the stress field to analyze the pit strut temperature effect. Combining case history

it is simulated by adopting modified Cam-clay model and considering different excavation processes. And it analyzes the strut temperature stress effect caused by different construction stages. Then it is pointed out that the strut temperature stress should be designed according to the worst cases caused by all kinds of work conditions. It comes conclusions that the effects of the temperature should be considered as a case when it changes greatly.

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