高瓦斯工作面高抽巷合理位置与抽采效果研究

Drainage Effect and Rational Position of High Drainage Roadway of High Gas Working Face

为了研究高抽巷合理的布置位置,根据淮南矿区13-1煤的实际开采条件和上覆岩层特征,采用理论计算、相似模拟试验和现场施工观测等方法,研究分析了高抽巷合理的布置层位和对瓦斯抽采效果的影响。结果表明:13-1煤工作面垮落带高度约是采高的4倍、裂缝带高度约是采高的16倍,高抽巷合理布置层位约为距煤层顶板42m,利用相似模拟材料试验结果来确定高抽巷布置层位更为合理。

In order to study the rational position of high drainage roadway, according mining situation and overburden strata charactersof 13-1 coal seam of Huainan mining area, and then theory calculation, similar simulation experiment and practical observation wereapplied, and gas drainage effect that influenced by rational position of high drainage roadway was studied. The results showed that thecollapsed zone height is four times of mining height in 13-1 working face, fracture zone height is 16 times of mining height. The rationaldistribution position of high drainage roadway to roof of coal seam is forty-two meters, and then the rational was verified by similar simulation.