南京河西漫滩地区钻孔灌注桩施工技术

On construction technique of bored pile at Hexi floodplain at Nanjing

结合南京河西漫滩地区钻孔灌注桩的施工实例,探讨了软基上钻孔桩的施工技术,针对钢护筒设计、泥浆制作、钢筋笼安装加工及水下灌注等关键工艺进行了介绍,以供类似工程施工参考。

Combining with the construction case of the bored piles at Hexi floodplain area of Nanjing,the paper explores the construction craft of the bored pile at the soft foundation,and introduces some key crafts,including the steel casing design,the manufacturing of slurry,the installation and process of the reinforced cage,and the underwater grouting,so as to provide some reference for similar projects.