岩溶地区高速公路桥梁桩底补强设计及应用

Design and application of reinforcement for the bottom of expressway bridge pile in karst area

针对岩溶地区高速公路桥梁端承桩持力层存在缺陷的情况,采用高压注浆方案进行补强处理,并对桥梁桩底补强处理设计、注浆施工方法、施工工艺进行阐述。

Aiming at the defective bearing layer of expressway bridge pile in karst area,this paper chooses high pressure grouting method to reiforce it. At the same time,it explains the design of reinforcement for the bottom of bridge pile,the construction method of grouting and the construction process.