摘要
针对贯通式潜孔锤反循环钻进技术在岩溶复杂地层水文水井钻进中遇到的技术难题,进行室内模拟研究。试验表明,增加了抽吸孔后的取样钻头适合在极其破碎的地层中钻进。
Aim at the technical difficulty of ran-through DTH hammer reverse circulation drilling that happened for water well drilling in karst strata, a simulator investigation was carried through in laboratory. Through this experimentation, it indicates that the sampling bit added pumping hole adapts to drilling in most fragmentized strata.
出处
《施工技术》
CAS
北大核心
2007年第1期89-91,共3页
Construction Technology
关键词
岩溶地层
贯通式潜孔锤反循环钻头
水文水井
堵塞问题
karst strata
through-type DTH hammer reverse circulation bit
water well drilling
bit block
