软土地区深基坑工程设计实践与分析——以上海九亭某项目为例  

Design Practice & Analysis of Deep Foundation Pit in Soft Soil Area: Taking a Project in Jiuting, Shanghai as an Example

作　　者：何招智 HE Zhao-zhi(Shanghai Geological&Mineral Engineering SurveyCo.,Ltd.,Shanghai 200072,China)

机构地区：[1]上海市地矿工程勘察(集团)有限公司,上海200072

出　　处：《中国市政工程》2022年第6期97-101,128,共6页China Municipal Engineering

摘　　要：以上海某深大基坑工程为例,在分析基坑特点与周边环境的基础上,结合工程地质与水文地质条件,对基坑围护结构、水平支撑、加固方案和降水方案进行比选,并对施工工况进行设计。运用现场监测数据对设计理论计算结果进行检验。结果表明,监测数据与理论计算结果基本一致,同时基坑变形数据均在合理范围内,证明该基坑所选的围护结构较好控制了基坑围护结构和周围环境的变形,反映了所选方案的合理性。结论对于软土地区类似基坑工程方案的选择与设计具有一定的参考价值。Taking a deep & large foundation pit project in Shanghai as an example,based on the analysis of the characteristics of the foundation pit& the surrounding environment,and in combination with the engineering geological & hydrogeological conditions,the foundation pit retaining structure,horizontal support,reinforcement scheme and dewatering scheme are compared & selected,and the construction conditions are designed.The field monitoring data are used to check the design theoretical calculation results.The results show that the monitoring data are basically consistent with the theoretical calculation results,and the deformation data of the foundation pit are within a reasonable range,which proves that the selected retaining structure of the foundation pit can better control the deformation of the foundation pit retaining structure and the surrounding environment,reflecting the rationality of the selected scheme.The conclusion has certain reference value for the selection and design of similar foundation pit projects in soft soil areas.

关 键 词：软土地区 深基坑 围护结构 变形 现场监测 

分 类 号：TU473.2[建筑科学—结构工程]