摘要
分析了不同综采放顶煤支架架型对顶煤回收率的影响，并根据现场统计和实验室实验，对采用不同支架的综采放顶煤工作面的回收率进行了对比分析，指出在潞安矿区煤层地质条件或类似的其它矿区，应优先选用低位双输送机放顶煤支架，以提高顶煤回收率。
The influence of different support type in fully mechanized caving on the extraction rate of top coal are analysed.Comparison of the extraction rates at caving faces with different supports based on field statistics and laboratory experiments shows that the support with low drawing chute and two conveyors are preferred under the geological condition of coal seam in Luan Mining Area and the similar mining areas so as to raise the extraction rate of top coal.
