岩溶地区清水灌注桩施工工艺——以阳宝山特大桥为例

Construction Technology of Cast-in-Situ Piles in Karst Area--Taking Yangbaoshan Bridge as an Example

以阳宝山特大桥桩基工程为例,该工程采用清水灌注桩工艺进行施工,并对涉及的护壁砌护及一次防水处理、孔内爆破施工、钢筋笼加工及下放等技术要点展开探讨,最终保证了工程质量。

This paper takes the pile foundation project of Yangbaoshan super large bridge as an example,which is constructed by water filling pile technology,and discusses the technical key points involved in wall lining,one-time waterproof treatment,hole blasting construction,steel cage processing and lower down,etc.,finally guaranteeing the project quality.