摘要
通过对综放工作面的现场观测 ,分析了顶煤的活动规律 ,总结出顶煤破碎的原因及分带情况 。
Through observing on spot in compound mining face,the activity rule of roof coal is analyzed,the reason of roof coal crushing and distribution state are summrised,the reasonable drawing interval and questions noticed in roof and floor mannge are provided.
出处
《煤炭技术》
CAS
2000年第5期23-25,共3页
Coal Technology
关键词
综放工作面
活动规律
放煤步距
混矸率
compound caving face
roof coal
activity rule
drawing interval
refuse rate
