上海世博中心基坑工程设计  

Design of deep foundation pit of Shanghai Expo Center Project

作　　者：陈畅[1] 戴斌[1] 王卫东[1] 

机构地区：[1]华东建筑设计研究院有限公司地基基础与地下工程设计研究所,上海200002

出　　处：《岩土工程学报》2010年第S1期397-403,共7页Chinese Journal of Geotechnical Engineering

摘　　要：中国2010年上海世博中心项目基坑面积巨大,不同功能区域开挖深度差异较大,基坑内部存在较多坑中坑。本工程作为世博会重点场馆之一,工期要求相当苛刻。针对基坑特点及环境特点采用了多种支护体系相结合的做法:普遍区域采用"中心岛结合钢管斜支撑"支护形式,会展区域采用板式支护体系结合水平内支撑的支护形式,舞台深坑区域创新性地采用了空间双向倾斜混凝土支撑和基础底板替代水平支撑的方式。基坑工程已顺利完成,设计方案的实施为主体地下结构的施工和实现预定的工期目标创造了有利的条件。The area the foundation pit of Shanghai Expo Center is ultra-large and the excavation depth varies greatly in different districts.However,the environment protection of this project is not very strict.Several retaining systems are adopted considering the excavation depth in different districts.Obligue steel pipe bracings are adopted for the ordinary district and it is constructed by the island excavation method.The obligue RC bracings and the foundation slabs are used to support the excavation at the local deep platform district.The excavation is successfully accomplished.This has provided convenience for the construction of the underground structures and also guaranteed the construction period of the whole project.

关 键 词：超大面积基坑 型钢水泥土搅拌墙 中心岛 斜支撑 坑中坑 

分 类 号：TU470[建筑科学—结构工程]