厚煤层可放性分析及开采工艺研究

Analysis of Top Coal Caving Liability in Thick Seam and Study of the Working Method

针对唐山矿业分公司9煤层地质条件,分析了厚煤层综采顶煤的可放性,对综放工作面放煤方式的确定、放煤步距的选择以及开采工艺提出了见解。

Analysis is made of the geological conditions of the thick seam 9 and the liability of the top coal co cave in when the seam is mined using fully-mechanized system.Then,the method for letting down the top coal,the selection of drawing interval and mining method are proposed.