软土性质对基坑围护结构稳定性的影响  

Influence of Soft Soil on the Stability of Pit Enclosure Structure

作　　者：原文奎 党海军 郭庆昊 王体广 

机构地区：[1]中铁第五勘察设计院集团有限公司

出　　处：《城市轨道交通研究》2010年第5期75-78,共4页Urban Mass Transit

摘　　要：结合某地铁车站基坑工程,对软土地区基坑围护结构稳定性进行了三维有限元分析计算,并就软土性质对基坑变形和围护结构稳定性的影响进行了灵敏程度分析和讨论。土体的塑性应变基本上集中在基坑底部开挖面附近;土的内摩擦角的增加或减小对基坑的最大变形影响很大。Abstract Deformation of station pit foundation engineering and the stability of pit enclosure structure in soft soil are analyzed bases on one station＇s foundation engineering of an urban traffic project. A three-dimensional finite element analysis has been accomplished; meanwhile, the sensitivity analysis has been carried out on the effect of soft soil property on pit foundation＇s deformation and stability of enclosure structure.

关 键 词：软土地基 基坑围护结构 三维有限元分析 

分 类 号：TU447[建筑科学—岩土工程]