桥梁钻孔灌注桩断桩的原位处理技术

Original Position Processing Technology of Broken Part of Bored Cast-in-place Pile

灌注桩是必须连续施工的高隐蔽性工程,施工管理较为复杂,施工中断桩的出现是一个很难回避的事实。介绍不同情况下断桩出现的不同处理方法,重点阐述了穿心锤击法原位处理高速公路桥梁深长灌注桩地表下深处断桩问题。

The cast-in-place pile is very high covert project that must construct continuously, and the construction control is complex. It is difficult to avoid that there exists broken pile during the construction. This paper introduced several different processing methods for different kinds of broken piles and especially stressed how to deal with deep underground broken pile of deep-drawn cast-inplace pile of highway bridge using original position processing technology of hammering the center, which could be referred to related areas.