加筋水泥土桩锚在“土岩组合”深基坑支护中的应用

Application of the reinforced cement-soil anchorage pile for deep excavation support composed of soil and weathered rock stratum

介绍了青岛岩石地区"土岩组合"深基坑的一种新型支护技术,加筋水泥土桩锚技术。结合一个工程实例,将这种支护技术总结成四种典型支护形式,以及四种支护形式的适用范围和对应的地质情况。分析了在施工中容易遇见的问题及解决办法,结合监测数据总结了本工程的实施效果,验证了该技术的可行性。

A new type of deep excavation support technology in rock area of Qingdao is introduced,technology of reinforced concrete anchor pile.Four typical forms of the technology are summarized and their applications respectively in a real engineering case.Problems that occurs in the constructions and their solution are analyzed.According to the monitoring data and the results of the project implementation,the technology is proved feasible.