本文分析了放顶煤开采煤炭损失的构成以及提高放顶煤开采煤炭回收率的途径和方法。文章认为,提高放顶煤开采的煤炭回收率,应从工作面内外两个方面考虑,重点放在工作面外的那部分损失,即提高放顶煤开采煤炭回收率的关键问题是采用无煤柱沿空掘巷,同时分析了掘巷的位置选择及采取的技术措施。 This paper analyzes the composition of caving coal during caving mining and the ways and methods to increase coal recovery rate after top coal caving. The article believes that to improve the coal recovery rate of top coal caving mining should consider both inside and outside the work surface, with emphasis on the part of the loss outside the work surface, that is, to improve the recovery rate of top coal caving coal recovery key issue is the use of non-coal pillar Roadway driving along the gully, at the same time analyzed the location of roadway selection and technical measures taken.