【摘要】 介绍了在淮南矿区松软、突出煤层中提高突出煤层钻孔孔深的技术途径,并在该矿区的谢一矿、潘一矿等矿井进行了现场试验,取得了较好的效果,为类似矿区瓦斯治理长钻孔施工总结、积累了宝贵的经验。更多还原

【Abstract】 This paper describes the technical approach to the improvement of the depth of holes drilled along loose outburst coal seam in Huainan Coal Mining Area, on-the-spot tests were conducted in Xie No.l and Pan No.l mines in this area, and good results were obtained, this thus sums up and accumulates valuable experience for long-hole drilling in gas control in the similar coal mine.更多还原