隐伏性突出煤层群保护层开采卸压瓦斯抽采技术研究

保护层开采是对于煤与瓦斯突出矿井开采煤层群时首选的经济有效的区域防治突出措施，但开采保护层时既要治理本煤层涌出的瓦斯，还面临着被保护层卸压瓦斯涌入保护层工作面。为有效抽采上保护层开采后的卸压瓦斯，利用保护层开采“卸压增透效应”，结合新田煤矿井下生产实际情况，以新田煤矿1402保护层工作面为例，介绍保护层工作面开采期间的瓦斯治理技术。

Study on pressure relief gas drainage technology in protective seam mining of hidden outburst coal seam group

Protective seam mining is the preferred economic and effective regional outburst prevention measures for coal and gas outburst mines，but when mining protective seam，it is necessary not only to control the gas emission from the coal seam，but also to face the pressure relief gas gushing into the protective seam face.In order to effectively extract the pressure-relief gas after mining the upper protective seam，the protective seam is used to mine the "pressure-relief and permeability-increasing effect".Combining with the actual production situation in Xintian Coal Mine，taking 1402 protective seam working face of coal mine as an example，this paper introduced the gas control technology during the mining of protective seam working face.