利用原有围护桩的基坑工程设计实例与分析  

Analysis on a Practical Foundation Pit Using Existing Retaining Piles

作　　者：熊巨华[1] 楼晓明[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《建筑结构》2005年第4期68-69,49,共3页Building Structure

摘　　要：某基坑工程的设计是在原方案基础上修改而成。通过对边坡稳定安全系数的计算和围护桩的一维杆系有限元分析,新的围护方案在充分利用原有围护桩的情况下,采用在坑内注浆加固、增加角撑、大深度放坡开挖等技术措施,达到了安全、经济与可行的目的。The former design of a practical foundation pit in Shanghai was bored soldier piles that have been constructed for more than 6 years. Because the upper structure changed, the location and depth of the foundation pit changed. Based on the calculation of safety factor of slope and one-dimension FEM analysis of the soldier pile, the existing retaining piles were designed to use again by using some technical measures such as soil improvement, adding some corner braces and deep slope. The results show that it is feasible in soft soil.

关 键 词：基坑工程 围护桩 设计实例 边坡稳定安全系数 有限元分析 充分利用 围护方案 注浆加固 技术措施 放坡开挖 大深度 基础 杆系 角撑 

分 类 号：TU473.2[建筑科学—结构工程] TU243[建筑科学—土工工程]