岩溶地区钻孔灌注桩的施工方法和技术措施

Construction Method and Technical Measure for Bored Cast in-situ Pile in Karst Area

本文通过对在岩溶地区钻孔灌注桩的施工方法与主要的技术措施介绍,系统说明了在岩溶发育地区进行钻孔灌注桩施工,是一项工作繁杂、工序严密、技术性强、工期较短、需连续三班作业的地下隐蔽工程。因此,为了提高和保证钻孔灌注桩的耐久使用性,应因地制宜,综合考虑地层性质、地下水、场地条件与环境、施工设备性能、起吊载荷大小等因素,精心组织好施工,制订切实可行的施工措施,以确保工程质量。

By presenting the construction method and the main technical measure for bored cast in-situ pile in Karst area,the article systematically illustrates that the construction of bored cast in-situ pile in Karst developed area is a concealed work of great complex that requires strict procedure,strong technology,short construction period and three successive shifts. In order to ensure and improve the durability of bored cast in-situ pile,all the relevant factors such as the stratum property,underground water,site condition and environment,construction machines and the lifting load etc. shall be fully considered,and the construction shall be elaborately organized with feasible construction measure to ensure project quality.