上海交通大学学报

上海交通大学学报 ›› 2006, Vol. 40 ›› Issue (12): 2118-2121.doi: 10.16183/j.cnki.jsjtu.2006.12.022

所属专题： 王建华教授学报发文专辑

• •    下一篇

连续墙与土体接触特性对深基坑变形分析的影响

范巍, 王建华(), 陈锦剑   

  1. 上海交通大学土木工程系，上海 　200030
  • 收稿日期:2006-01-05 出版日期:2006-12-01 发布日期:2021-04-25
  • 作者简介:范巍（1982-)，男，浙江遂昌人，硕士生，主要从事岩土工程数值计算方面的研究．|王建华（联系人），男，教授，博士生导师，电话（Tel.):021-62932915；E-mail:wjh417@sjtu.edu.cn.

The Evaluation of Deformation Induced by Excavation Considering the Properties of Diaphragm-Soil Interface

FAN Wei, WANG Jian-hua(), CHEN Jin-jian   

  1. Dept. of Civil Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China
  • Received:2006-01-05 Online:2006-12-01 Published:2021-04-25

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摘要：

采用考虑连续墙与土体接触面的三维弹塑性有限元方法对上海银行深基坑工程进行了数值分析，得到了基坑围护墙体的变形与基坑开挖引起的周围地表沉降．结合实测数据，与不考虑接触面的分析结果进行比较，讨论了连续墙与土体接触面特性对基坑变形分析结果的影响．结果表明，考虑接触面特性的计算方法与实测结果更加吻合，不考虑墙土接触面特性所得到的基坑变形和坑外地面沉降偏小．

关键词: 深基坑, 接触面, 变形, 有限元方法

Abstract:

A three-dimensional finite element method by considering the properties of the diaphragm wall-soil interface was applied to analyze the excavation of a deep foundation pit in Shanghai soft ground. The simulation results were compared with the monitoring data as well as the simulation results without diaphragm wall-soil contact. The influence of diaphragm-soil interface on the deformation analysis of excavation was discussed. The results of simulation considering the properties of the diaphragm-soil interface show closer agreement with the measure ment data. Moreover, the model without diaphragm wall-soil contact generally gets smaller wall deformation and induced ground movement.

Key words: deep excavation, diaphragm wall-soil interface, deformation, finite element method

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