贵州矿区煤层透气性差,进行本煤层抽放难度较大,为提高抽放效果,以新田煤矿14采区为研究背景,利用钻屑量法测了煤壁应力横三区,研究并试验三花眼布置方式,按照2 d1个循环,长短钻孔配合,达到长钻孔卸压、短钻孔抽采交叉迈步式浅孔抽放技术。在回采工作面生产过程中,取得良好的效果。 In order to improve drainage effect, taking the 14 mining area of ​​Xintian Coal Mine as a research background, we measured the horizontal stress of coal wall in three areas by drilling cuttings method, studied and tested three Arranged according to the pattern of 2 d1, the length and the length of the holes are matched to reach the long borehole relief pressure, and the short bore hole extraction adopts the step-by-step shallow hole drainage technique. In the mining face production process, achieved good results.