翁其平，王卫东

（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）

 

［摘要］上海虹桥综合交通枢纽是一项综合性强、涉及面广的系统工程，西航站楼、东交通中心、车库、磁悬浮和地铁隧道及车站等单体的施工在平面、时间和空间上相互重叠、纵横交错。本工程基坑面积巨大、开挖深度超大、施工难度大，其基坑规模在上海地区乃至全国均属罕见，而且工程工期十分紧迫。设计紧扣基坑面积巨大、挖深深、地下空间布置错落高低相连，周边环境保护要求低等特点，经过多种基坑支护设计方案的技术、经济和工期的综合对比分析，最终采用多级梯次联合支护体系的设计方案。该方案的应用加快了基坑的施工速度，大幅度地节省了工程造价，取得了良好的社会和经济效益，为同类工程提供了一些借鉴。

［关键词］深基坑；多级梯次联合支护体系；虹桥综合交通枢纽；支护

中图分类号：TU753-1文献标识码：A文章编号：1002-848X(2012)05-0172-05

 

Weng Qiping, Wang Weidong

（Department of Underground Structure & Geotechnical Engineering, East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China）

 

Abstract: Shanghai Hongqiao Integrated Transport Hub consists of a series of structures including the west airport terminal, east transport center, parking garage, maglev train, metro tunnels and stations etc. These structures are inner-connected and overlap with one another in terms of space. Meanwhile, the total area of excavation is huge with considerable depth of excavation and difficult to construct. The scale of such a project is unprecedented not only in Shanghai, but also in China. The time limit of construction is urgent. An innovative multi-level supporting system is finally chosen for the group foundation pits, through thorough comparisons of a variety of plans on the technical and economical aspects. The supporting system can facilitate the fast implementation of the project and help to cut down total project cost greatly. It not only achieves desirable economical and social benefits, but also serves as a reference for future similar mega-projects.

Keywords: deep foundation pit excavation; multi-level supporting system; Hongqiao Integrated Transport Hub; supporting

*国家科技支撑计划课题(2012BAJ01B02)。

作者简介：翁其平，高级工程师，Email：qiping_weng@ecadi.com。

 

［1］上海岩土工程勘察设计研究院. 上海虹桥国际机场扩建工程［R］. 2006.

［2］王卫东, 翁其平. “两墙合一”设计关键技术问题研究［J］. 地下空间与工程学报, 2005, 1(4):574-578.

［3］刘国彬, 王卫东. 基坑工程手册［M］. 2版. 北京：中国建筑工业出版社，2009.