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地面定向分支孔探查小煤矿采空区技术研究与应用 预览 被引量:1

Research and application of ground directional branch holes for exploration of goaf in small mines
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摘要 地面定向分支钻探技术是指从地面垂直开孔,以一定的角度在目标层位变向为水平井的钻探技术。在煤矿多用于奥灰区域治理,利用地面水平定向钻探通过一个地面主孔施工多个水平分支钻孔,控制奥灰注浆改造范围,达到区域注浆改造的目的。东庞矿西庞井采用地面施工顺煤层定向分支钻孔和少量井下钻探相结合的方法,完成了对西庞井浅部小窑破坏区探查,提高了防治水工作的科技水平和探放水效率。 Ground-oriented branch drilling technology refers to the drilling technology that vertically opens the hole from the ground and turns the target layer into a horizontal well at a certain angle.The coal mine is mostly used for the treatment of the ash area,and the horizontal directional drilling of the ground is used to construct a plurality of horizontal branch holes through a main hole of the ground to control the transformation range of the ash grouting to achieve the purpose of regional grouting transformation.Xipang shaft of Dongpang Mine used a combination of directional branching drilling along the coal seam and a small amount of underground drilling to complete the exploration of the damaged area of the shallow kiln,improved the scientific and technological level of water prevention and drainage and the efficiency of water exploration and drainage.
作者 刘银波 Liu Yinbo(Department of Geodesy,Jizhong Energy Corporation Ltd.,Xingtai 054000,China)
出处 《煤炭与化工》 CAS 2018年第12期55-58,共4页 Coal and Chemical Industry
关键词 小窑 定向分支孔 伽马值 small kiln directional branch hole gamma value
作者简介 刘银波(1986-),男,湖南汨罗人,工程师。
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