泵吸反循环钻孔扩底桩施工技术研究及其应用

Pump-Absorption Anti-cycle Drilling Club-Footed Pile Construction Technique Research and Using

概述了扩底桩关键技术问题及难点 ,重点阐述了泵吸反循环钻孔扩底桩施工技术研究开发的要点 ,介绍了该项技术的应用效果 ,分析了其经济技术特点 ,展望了钻孔扩底桩的应用前景。

The article summarizes key technique problem and difficult points of drilling club\|footed pile. Sets forth emphatically main points of punp\|absorption anti\|cycle drilling club\|footed pile construction technique research and development, introduces its using results, analyses its economic technique characterization, predict drilling club\|footed pile using prospects.