钻孔灌注桩在软土地区深大基坑围护工程中的应用

Application of Cast-in-place Bored Pile for in Soft Soil Area

摘要:

上海市某基坑工程开挖深度与开挖面积均较大，周边环境复杂，变形要求高。基坑围护工程采用钻孔灌注桩加双头水泥土搅拌桩隔水加二道支撑的方案，分层分区、限时开挖支撑，信息化施工，保证了基坑的顺利开挖，取得了令人满意的工程效果。

Abstract:

In Shanghai, a great depth and large scale excavation engineering of complex environment and high deformation requirement was constructed with water insulation by cementsoil mixing pile + twofloor support, hierarchical partition, excavating in limited interval and information construction, the engineering was carried smoothly with satisfactory project results.