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分析了煤层顶板抽放瓦斯流场分布和瓦斯抽放的关键技术的基础上,针对首采煤层采取了综合抽放瓦斯的方法,并对抽放方法进行了抽放效果及经济效益方面对比,得出采用高抽巷抽放瓦斯效果最好。
Based on the analysis of the key technologies of gas flow field distribution and gas drainage in coal seam roof gas drainage, a comprehensive gas drainage method is adopted for the first coal seam and the drainage effect and economic benefit are compared , Draw the high gas drainage tunnel drainage effect best.