基坑防渗体局部失效渗流场变化特征
投稿时间：2005-04-26  修订日期：2005-04-26  点此下载全文
引用本文：李守德,于达.基坑防渗体局部失效渗流场变化特征[J].钻探工程,2005,32(10):2-5.
LI Shou-de,YU Da. Study on Seepage Field of Pit Excavation Case of Local Breakage in Seepage Proof Wall[J]. Drilling Engineering, 2005,32(10):2-5.
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作者单位E-mail
李守德 河海大学 岩土工程研究所 lishoude@hhu.edu.cn 
于达 连云港港务局  
基金项目:河海大学创新基金资助项目(2003403043)
中文摘要:采用三维有限元方法分析了基坑开挖工程在防渗体出现局部失效情况下，引起渗流在失效部位的集中及渗流场空间状况。提出了以一维通道嵌入三维块体的方法模拟管涌发展过程及渗流场变化特征。讨论了管涌通道渗透性对基坑管涌发展规律的影响。
中文关键词:基坑  防渗  管涌  渗流场  变化特征
 
Study on Seepage Field of Pit Excavation Case of Local Breakage in Seepage Proof Wall
Abstract:With 3-dimensional FEM method, seepage field of pit excavation case of local breakage in seepage proof wall were put to study. In this paper, method of embedding piping tunnel in 3-dimensional block is put forward to simulate piping erosion process. The effect of piping conductivity in the piping development process was taken into discussion.
keywords:pit excavation  seepage proof  piping erosion  seepage field  change pattern
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