论文部分内容阅读
文中对鹤壁矿务局四矿２４０９工作面巷道布置及生产工艺进行了介绍，对应用效果及前景进行了分析，提出了在鹤壁四矿利用水采开采煤层倾角变化较大的煤层时，仍不失为一种较好的采煤方法。
This paper introduces the layout and production technology of 2409 working face of Hebi Mining Bureau, analyzes the application effect and prospect, and puts forward that when Hebi No. 4 coal mining exploits water to change the coal seam whose dip angle changes greatly, A better method of coal mining.