焦作九里山矿单体支柱放顶煤工作面顶煤运动放出规律浅析

Analysis of caving coal movement drawing law at the single-body breaker prop sublevel caving coal face in Jiulishan coal mine of Jiaozuo

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，

According to the field survey at the single?body breaker prop sublevel caving support coal face in Jiulishan coal mine of Jiaozuo,the coal flow state and the drawing ellipsoid?body law during the caving coal movement,crushing and the drawing process at the single?body breaker prop coal face have been obtained.Thus,some reliable basis have been provided for determining the appropriate technological parameters of the caving coal.