摘要
依托重庆中航MyTown工程,针对超深中风化块石回填土质条件下超深钻孔灌注桩施工难题,通过对旋挖钻机、钻头、钢护筒拼接等的改进优化,采用全回转钻机协同旋挖钻机、全钢护筒跟进施工技术,解决了回填地质条件下40-80m桩的成孔、成桩技术难题。
Based on Chongqing Zhonghang MyTown building project,in view of the construction problems of extra-long bored piles in extra-deep block medium weathered stone filling stratum,through the improvement of rotating drill,bit and steel casing,using the full-circle boring machine with auger drill work together and the technology of steel casing,which solved the hard technological problem of 40 - 80 m pile in extra-deep block stone filling stratum.
出处
《施工技术》
CAS
北大核心
2016年第13期28-30,共3页
Construction Technology
