定向顶板钻孔与普通顶板钻孔抽放效果对比研究  

Contrast research on the effect of directional roof drilling and normal roof drilling

作　　者：霍晓林 HUO Xiaolin

机构地区：[1]山西冀中能源集团金晖万峰煤矿有限公司,山西吕梁032300

出　　处：《中国矿山工程》2020年第5期82-84,共3页China Mine Engineering

摘　　要：为提高万峰矿工作面上隅角瓦斯治理效果,以万峰矿的地质和瓦斯资料为基础,基于构造曲率及采空区顶板"三带"和"三区理论",对该矿常用的普通顶板钻孔和定向顶板钻孔进行了设计,结合井下钻孔实际抽采效果进行对比。对比结果表明:该工作面使用定向顶板钻孔进行上隅角瓦斯治理,可以提高抽放效率且抽放效果较好。In order to improve the effect of gas control in the upper corner of Wanfeng mine,based on the geologic and gas data of Wanfeng mine,based on the tectonic curvature and"three zones"and"three zone theory"of the roof,drilling and directional roof drilling was designed,combined with the actual borehole borehole pumping results compared.The comparison results show that:the face using directional roof drilling for gas treatment in the upper corner,can improve drainage efficiency and drainage effect is better.

关 键 词：上隅角 顶板钻孔 抽放效果 

分 类 号：TD726[矿业工程—矿井通风与安全]