软土地基下超大型深基坑无内支撑设计优化及施工技术  

Design Optimization and Construction Technology of Super Large Deep Foundation Pit Without Internal Support Under Soft Soil Foundation

作　　者：郭延义 GUO Yanyi(Shanghai Construction No.2(Group)Co.,Ltd.,Shanghai 200090,China)

机构地区：[1]上海建工二建集团有限公司,上海200090

出　　处：《建筑施工》2022年第12期2862-2865,共4页Building Construction

摘　　要：以嘉兴南湖未来广场项目为例,在软土地基下超大型深基坑工程中施行基坑内无支撑的围护形式,通过优化基坑无内支撑设计及施工技术,使得基坑安全高效施工。工程实践证明了软土地基下超大型深基坑下无内支撑施工的可行性,为类似项目提供借鉴。Taking the project of Jiaxing Nanhu Future Plaza as an example, the super large deep foundation pit without internal support under soft soil foundation is implemented. The design and construction technology of foundation pit without internal support is optimized to ensure safe and efficient construction of foundation pit. The engineering practice has proved the feasibility of construction of super large deep foundation pit without internal support under soft soil foundation, which can provide reference for similar projects.

关 键 词：软土地基 超大深基坑 无内支撑 设计优化 

分 类 号：TU753[建筑科学—建筑技术科学]