摘要
针对研究区岩层性质和技术状况，通过钻具的优选和合理级配，以及钻进方法、钻头类型与参数、钻进工艺、操作技术的研究，得出一套提高钻孔钻进速度的技术措施，在研究区软-坚硬互层地层瓦斯抽放钻孔施工中，台月效率比原来提高80％以上。
According to the rock properties and technical conditions in the research area, through the optimization and reasonable gradation of drilling equipments and the analysis on drilling method , bit types and parameters, drilling technology and operating technology, a suit of technical measures for raising the drilling efficiency is obtained. The driller-month efficiency has risen by more than 80% in the construction of gas drainage boreholes in interbedded formation of soft and hard rock in research area.
出处
《探矿工程（岩土钻掘工程）》
2007年第12期9-12,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
瓦斯抽放
钻进速度
金刚石钻头
全液压坑道钻机
gas drainage
drilling efficiency
diamond bit
full hydraulic tunnel drilling machine
