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通过焦作矿务局九里山矿单体支柱放顶煤工作面现场实测， 得出单体支柱放顶煤工作面顶煤运动、破碎、放煤过程中煤流动态及放出椭球体规律， 为确定合理放顶煤工艺参数提供了可靠的依据． 合理的放煤工艺参数不但提高了回收率， 而且保证了工作面正常生产， 这对焦作矿区今后采煤方法的改革具有重要的指导意义
Through the field measurement of the coal caving face of the single pillar of Jiu Lishan Mine in Jiaozuo Mining Bureau, the coal movement, crushing and coal flow in the caving coal face with single pillar are obtained, Reasonable top coal caving process parameters provide a reliable basis. Reasonable parameters of coal extraction not only improve the recovery rate, but also ensure the normal production of working face, which has important guiding significance for the reform of coal mining method in Jiaozuo mining area in the future