近距离煤层开采瓦斯立体抽采防突技术应用

Application of Stereo Gas Drainage Technology for Outburst Prevention Mining under Closed Distance Seam Group

民新煤矿在近距离保护层开采过程中,依据瓦斯立体抽采防突技术原理,采取本煤层顺层钻孔、高位钻孔、底板穿层钻孔、采空区埋管抽采工作面上隅角瓦斯等相应的瓦斯治理措施,取得较好的防治效果。

In the protection layer mining under closed distance seam group in Minxin Coal Mine,according to the theories of stereo gas drainage for outburst prevention,the corresponding gas control measures are adopted,such as the coal seam bedding boring,high drilling,floor wearing a layer of drilling,extraction pipe mined-out area of work surface corner.The better control effects are obtained.