有相邻建筑物的顺层岩质基坑支护设计实例

Example of Design of Bedding Rock Foundation Pit Support for Adjacent Buildings

以坡顶有相邻重要建筑物的重庆临江门某高层顺层岩质基坑支护作为工程实例,结合基坑边坡破坏模式,对比分析了基坑常用支护结构的优缺点,确定采用抗滑桩+锚索的基坑支护方案,并按照变形控制法原则对基坑工程进行了支护设计,采用施工过程中的关键控制技术。监测结果表明:基坑支护设计安全有效地保证了基坑自身和坡顶建筑物的安全。

Taking the bedding rock foundation pit support for a high-rise building adjacent to the important buildings on the slope top in Linjiangmen,Chongqing as the engineering example,this paper,combining with slope failure mode,compared the advantages and disadvantages of the support structures often used in foundation pit,and determined the support scheme of anti-sliding pile ＋ anchor cable; then according to the deformation control principle,the support design thereof was conducted with key technology used in the construction. The result of monitoring shows that the foundation pit support designed ensures the safety of the pit and building on the top.