摘要
分别通过对风动冲击钻机、液压回转钻机、多功能钻机在不同地质条件下的钻凿作业进行分析,得出在软弱围岩成功实现深孔钻凿穿越的条件,为软弱围岩的超前钻探与预加固提供重要技术支持。
The drilling work can be done with the compressed-air driven percussion drill,the hydraulic pressure rotation drill and the multi-purpose drill at different geological conditions.The drilling conditions of deep holes for soft surrounding rock are obtained.The important technical support for pre-drilling and pre-reinforcement at soft surrounding rock is provided.
出处
《施工技术》
CAS
北大核心
2011年第S2期75-76,共2页
Construction Technology
关键词
地下工程
软弱围岩
钻凿技术
underground
soft surrounding rock
drilling technology
