工作面中部定向长钻孔回采期间治理效果分析  

Analysis of Treatment Effect during Directional Long Borehole Mining in Middle of Working Face

作　　者：杜军 DU Jun(Yuwu Coal Company,Lu′an Chemical Group,Changzhi 046000,China)

机构地区：[1]潞安化工集团余吾煤业有限责任公司,山西长治046000

出　　处：《煤炭技术》2025年第2期77-80,共4页Coal Technology

摘　　要：因工作面中部受地质构造影响或钻孔施工工艺缺陷,钻孔轨迹无法在工作面中部形成15 m压茬,导致工作面煤体中部留存空白带区域,通过布置施工定向钻孔,对工作面煤体空白区域进行全覆盖。为更好地了解定向长钻孔补打综采工作面中部空白带施工效果,针对工作面回采期间揭露定向长钻孔过程时,对工作面作用效果进行跟踪分析。Due to the influence of geological structure or defects in drilling construction technology in the middle of the working face,the drilling trajectory cannot form a 15 m stubble in the middle of the working face,resulting in the retention of a blank area in the middle of the coal body ofthe working face.By arranging directional drilling for construction,the blank area of the coal body of the working face is fully covered.In order to better understand the construction effect of directional long drilling in the middle blank zone of the fully mechanized mining face,the effect of the working face is tracked and analyzed when the directional long drilling process is exposed during the mining process.

关 键 词：工作面回采 瓦斯抽采 定向长钻孔 梳状分支 中部空白带 钻孔揭露 

分 类 号：TD712[矿业工程—矿井通风与安全]