钻孔灌注桩桩底压浆试验与效益综述

Summary on the Experiment and Benefits of the Pressure Mud Technique on the Base of the Drilling Hole Pour Pile

钻孔灌注桩是目前应用较为普遍的桥梁基础结构。但由于钻孔过程中泥浆的影响 ,采用桩底压浆工艺可改善桩周的边界条件 ,大幅度提高桩的承载力。本文介绍了桩底压浆的效益、机理和具体试验实例 ,具有一定的推广适用价值。

Drilling Hole Pour Pile is a widely used basic structure of bridge,the pressure Mud technique can be us ed to improve the surrounding conditions of the pile.In this paper,the author introduced the benefits,mechanism and some cases of the pressure mud technique.