深基坑桩锚支护体系搭接接长加固施工技术

Construction Technology of Lapping Reinforcement for Pile-anchor Supporting System for Deep Foundation Excavation

通过对深基坑桩锚支护体系中出现的支护桩嵌固深度不足的隐患研究,提出了一种于基坑内新增一排支护桩进行搭接接长的加固措施,有效解决了支护桩嵌固深度不足的安全隐患,该方案施工安全度高,各工序质量易于控制,能确保基坑周边道路、建筑物等环境安全,工程造价适中,具有施工便捷,经济性好的优点。

By the study of the risk of supporting pile embedded in deep foundation pit pile-anchor supporting system,a new strengthening method has been put forward in this paper to support the lap joint. The construction method is more safe than traditional technique,the construction procedure is more likely to be control. It can ensure the foundation pit surrounding roads and buildings safety. The construction cost is moderate,and the new method has advantage of convenience and economy.