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对综采放顶煤开采的顶煤移动、顶煤破碎、顶煤放出等动态过程进行了分析；研究探讨了放煤步距、放煤顺序、顶煤厚度等主要放煤参数及其对顶煤回采率的影响。
The dynamic processes of top coal movement, top coal breakage and top coal release were analyzed in the fully mechanized top coal caving mining. The main parameters of caving coal such as coal caving step, coal caving sequence and top coal thickness were discussed and discussed. Impact of coal recovery rate.