井下顺煤层长钻孔抽采瓦斯技术方案的应用

Application of Technical Scheme for Underground Gas Drainage with Long Borehole along Coal Seams

焦家寨煤矿矿井瓦斯等级鉴定为高瓦斯矿井,瓦斯绝对涌出量和相对涌出量较大,严重影响煤矿开采安全。以焦家寨煤矿5132工作面为研究对象,基于“先抽后采,监测监控,以风定产”的瓦斯防治方针,提出了井下顺煤层长钻孔抽采瓦斯技术方案,对其应用进行了分析。该方案的瓦斯抽采效果理想,提高了煤矿的抗灾能力,保障了煤矿的安全生产。

The gas grade of Jiaojiazhai Coal Mine is identified as a high gas mine,and the absolute and relative gas emission is large,which seriously affects the safety of coal mining.Taking 5132 working face of Jiaojiazhai Coal Mine as the research object,based on the gas control policy of"draining first,then mining,monitoring and control,and determining production by air",this paper proposed a technical scheme for underground gas drainage with long borehole along coal seams,and analyzed its application.The application of the scheme is of ideal gas drainage effect,which has improved the disaster resistance capability of the coal mine,and guaranteed the safe production of the coal mine.