摘要
详细分析了煤炭损失的构成，采取带采上分层区段煤柱、缩小区段煤柱、端头放煤、保证恰当的采放比、选择合理的放煤步距和放煤方式以及减少初采、末采丢煤等措施，提高了综放回采率。
Abstract Beginning with a detailed analysis of the composites of coal loss in fully mechanized sub-level caving longwall face,the paper presents a discussion on the precautions to increase the ratio of coal recovery,including recovering the chain pillar of the last longwall panel,reducing chain pillar size,implementing top coal caving at the two ends of the longwall face,deterrmining a proper winding caving ratio,remaining the correct caving cycle of top coal,minimizing coal loss during both commence and salvage of the longwall face.
出处
《煤矿开采》
1998年第4期9-10,13,共3页
Coal Mining Technology
