某基坑工程支护设计与施工方案

Supporting Design and Construction Plan of a Certain Foundation Pit Engineering

某工程基坑深10m左右,地层以粉土和粗(砾)砂为主,开挖深度较大,为确保工程安全,且不影响场地周边环境,须进行支护。该工程基坑采用了排桩联合预应力锚索及排桩(悬臂桩)进行支护,对其地质条件、基坑设计及施工工艺情况进行了详细介绍。

A certain foundation pit is about 10 m deep, with silt soil and coarse sand（gravel） as the main stratum. It is so deep that it must to be supported for project safety and to avoid affecting the surrounding environment of the site. The supporting of the engi- neering was adopted row pilescombined prestressed anchor cable and row piles （cantilever pile） method. The paper made a detailed introduction on its geological conditions, foundation pit design and construction technology.