南门山岩石高切坡工程的设计实践与体会

Design Practice and Experience in the High Cutting Rock Slope Project of South Gate Hill

南门山岩石高切坡工程坡顶有居民建筑,设计需按静止侧向岩石压力确定边坡的支护结构型式,并要求逆作法施工。但施工中部分区段未严格按逆作法施工造成坡顶建筑开裂,与之相反,严格按逆作法施工的边坡在施工期间和施工完成2年内监测得到的变形位移很小,治理效果明显。该文介绍了此类边坡的设计理念和施工效果,供同类工程设计施工参考。

There are some residential buildings in the high cutting rock slope engineering at the top of the South Gate Hill. Supporting structure type is determined by static lateral rock pressure and top-down construction method is required. But buildings at the hill top crack because some sections in the construction don＇t apply the top-down construction method. By contraries, the slope strictly constructed with top-down construction method deforms lit- tle in constraction period and within two years＇ monitoring after construction completion. This offers some references for the design and construction of similar projects.