深井高突煤层平硐石门辅助揭煤技术研究

Study on auxiliary coal exposed through horizontal crosscut technique of the high outburst coal seam in deep coal mine

为解决平煤股份十矿己15-24100机巷石门揭煤难题,根据井下煤层赋存地质条件,在己15-24100机巷向采面方向5m处施工一条66m揭煤辅助巷,巷道位于己15煤层顶板以上7m,向下施工穿层预抽钻孔,辅助巷的施工提高了钻孔施工的精度、扩大了钻孔的覆盖范围,结合己15-24100机巷钻孔,在机巷掘进头和平硐石门辅助揭煤巷同时施工抽采钻孔,消除煤层的突出危险性。

To solve the difficult problem of coal exposed through crosscut in the F15-24100 intake roadway of the 10 th Coal Mine of Pingdingshan coal industry Co.,Ltd.,according to the geological conditions of coal seams occurrence,the auxiliary coal exposed roadway which was66 mlong and located in 7mabove the roof of F15 coal seam and the down pre drainage boreholes through coal and rock seams were drilled in was constructed at 5maway from the F15-24100 intake roadway directing the working face.The construction of auxiliary coal exposed roadway improved the accuracy of the boreholes drilling and expanded the coverage of boreholes drilling.The outburst danger was eliminated by drainage boreholes which located in roadway and driving face of the F15-24100 intake roadway and auxiliary coal exposed roadway through horizontal crosscut.