深基坑综合围护施工技术

Construction Technology of Integrated Support of Deep Foundation Pit

太仓市文化艺术中心项目基坑开挖最大深度为14.1 m。浅基坑采用土钉墙支护，深基坑采用钻孔灌注桩加一道混凝土支撑，在灌注桩外侧施工一排旋喷桩作为防渗止水帷幕，基底采用深井降水。结果表明，该围护设计及施工安全、经济。

The maximized excavation depth of foundation pit is 14.1 m in the project of Culture and Art Center in Taicang city. Shal ow foundation pit applied soil nailing wal , and deep foundation pit applied the bored pile and a concrete support, and outside the bored piles is a row of jet grouting pile as wa-ter resisting curtain, and deep wel dewatering is used at the base of foundation. The results showed that the design and co-nstruction of enclosure is safe and economical.