摘要
介绍了贯通式潜孔锤气力喷反钻具系统的工作原理、结构设计、钻具特点及测试和生产试验情况。
The operating principle, structural design, drilling tool features, as well as test, production trial. are described of the pneumatic jet-type reverse circulation tool of the central hollow DTH hammer.
出处
《探矿工程》
1997年第4期32-33,39,共3页
Exploration Engineering(Drilling & Tunneling)
基金
地矿部"八五"重点科技攻关项目!中心取样(心)地质钻探技术及设备的研究
8501012
关键词
贯通式潜孔锤
取心钻具
潜孔锤
气力喷反钻具
central hollow DTH hammer, pneumatic jet-type reverse circulation, reverse circulation, coring tool
