论文部分内容阅读
石港矿15101综放面主采15#煤,鉴于该层煤煤质松软以及顶煤距内错尾巷底板间距较小,容易发生顶煤冒落,不能充分发挥其治理瓦斯的作用。根据内错尾巷实际情况,尝试性地布置在14#煤层。通过对工作面各巷道瓦斯涌出情况现场实测数据的对比分析,以及对内错尾巷布置在14#与15#煤层时,数值模拟结果对比,总结出15101工作面内错尾巷布置在不同高度下的特点及其瓦斯治理效果。
In the 15101 fully mechanized caving face of Shigang Mine, 15 # main coal is adopted. Due to the soft coal in the coal seam and the small spacing between the bottom of the top coal seam, the top coal caving is prone to occur and can not give full play to its role in controlling gas. According to the actual situation within the wrong tail lane, tentatively arranged in 14 # seam. By comparing and analyzing the measured data of the gas emission in each roadway in the working face and the comparison of the numerical simulation results when the internal staggered tailings are arranged in the coal seam Nos. 14 # and 15 #, it is concluded that the layout of the staggered tail lanes in 15101 working face is different The characteristics of the height and its gas control effect.