土工基础

›› 2013, Vol. 27 ›› Issue (5): 37-40.

• 工程实录 • 上一篇    下一篇

基坑开挖过程中渗流作用的影响

蔡廉锦，陈志波，李方振，王 腾   

  1. (福州大学环境与资源学院资源与城乡建设系，福州大学岩土工程与工程地质研究所，福州 350108)
  • 收稿日期:2012-12-28 出版日期:2013-10-22 发布日期:2013-10-28
  • 作者简介:蔡廉锦(1989-)，男，福建福州人，福州大学岩土工程专业硕士研究生。
  • 基金资助:
    国家自然科学基金（41102167）、福州大学科技发展基金（2011-XQ-12）

The effect of seepage during excavation

CAI Lianjin，CHEN Zhibo，LI Fangzhen，WANG Teng   

  1. (College of Environment and Resources & Institute of Geotechnical and Geological Engineering,Fuzhou University Fuzhou 350108)
  • Received:2012-12-28 Online:2013-10-22 Published:2013-10-28

摘要： 建立基坑二维有限元模型，对基坑开挖过程中不考虑渗流作用和考虑渗流作用下的基坑变形性状进行对比研究，得到两种工况下的基坑外地表沉降、基坑内开挖面隆起和基坑支护结构位移等变形规律，并对比分析了基坑开挖过程中渗流作用的影响。研究结果表明，考虑渗流作用的基坑变形比不考虑渗流作用更大。

关键词: 渗流作用, 基坑开挖, 有限元, 基坑变形

Abstract: A comparison study was performed to assess the effect of considering seepage in foundation pit excavation,using twodimensional finite element analysis (FEA).The following were predicted using FEA:settlement of ground surface outside the foundation pit,heaving of the bottom of excavation,strut reaction and displacement.The results show that the predicted deformation considering seepage is greater than that without seepage.

Key words: Seepage, Deep Excavation, Finite Element Analysis, Deformation of Supporting System