钻孔灌注桩加搅拌桩止水帷幕支护体系综合应用技术

THE INTEGRATED APPLICATION TECHNOLOGY OF MIXING PILE-BORED PILE SEALING CURTAIN SYSTEM

钻孔灌注桩加水泥搅拌桩止水帷幕的施工方式是上海软土地区基坑支护常用施工方法。工程综合考虑周边场地及临近构筑物情况,因地制宜地采用了放坡开挖和排桩支护相结合的方式,巧妙地解决了临近隧道的施工问题,降低了排桩桩顶标高,节约了支护费用。

The bored pile-cement mixing pile sealing curtain system is an excavation support method that is often used for soft soil construction in Shanghai.This system was used for the project with site conditions and adjacent buildings taken into account,which solved the problems of construction near the tunnel,thus reducing the elevation of the top of piles and saving cost of the support system.