灰岩(大理岩)地区钻孔灌注桩工程施工工艺探讨

On exploration of construction craft of bored piles in limestone areas

结合桩基工程施工经验,以果庄大桥工程为背景,简要归纳了灰岩(大理岩)地区钻孔灌注桩施工中遇到的技术难题,分析了其产生原因,并对成孔工艺的设计及应用进行了探讨,成功解决了施工中的难题。

Combining with the construction experience for the pile foundation projects, taking Guozhuang bridge engineering as the background, the paper sums up the technical difficulties for the bored piles construction in limestone areas, analyzes its reasons for formation, and explores the design and application of the pore craft, as a result, it successfully solves the construction difficulties.