石炭井二矿主采煤层四层煤,是典型的“三软”煤层,在开采过程中,顶板管理难度大,材料消耗多。在此条件下,进行炮采放顶煤开采,分析诸多方面的因素,采用煤层短壁注水工艺,有效地改善了工作面的开采条件,取得了较好的社会及经济效益,为类似条件下炮采放顶煤开采提供了经验。 In the mining process, the roof management is difficult and the material consumption is high. Under these conditions, the mining of caving coal top-coal mining, analysis of many factors, the use of coal seam short wall water injection process, effectively improving the working face mining conditions, and achieved good social and economic benefits, under similar conditions Artillery mining top-capping mining experience.