万丰路桥大吨位矩形截面桩成孔施工技术

Hole Completion Technology for Large-tonnage Rectangular Section Pile in Wanfeng Road Bridge

摘要:

针对在卵石及基岩地层中桩孔施工时成孔难、渗漏大的问题，以液压抓斗为成孔设备，采用合理的机械结构、钻进方法、泥浆配方进行矩形截面桩的施工。

Abstract:

In order to deal with the difficulties in hole completion and resolve serious leakage in pebble and bedrock, we use hydraulic grab as drilling equipment, adopt rational mechanical structure, drilling method, mud prescription in rectangular section pile construction.