摘要
针对木瓜煤矿近距离煤层群开采的实际状况,分析了上部煤层遗留煤柱应力分布规律及对下部煤层的影响范围,提出了下部煤层回采过遗留煤柱应力集中区的方法及措施,,工程实践取得了良好效果。
According to the mining of closed distance coal seam group in Mugua Mine, the paper analyzes the stress distribution of left coal pillars of upper coal seam, as well as its influence range on the lower coal seam. It also proposes the methods and measures when the lower seam caving passes the stress concentration area of the left coal pillars. The engineering practice shows ideal effects.
出处
《山西煤炭》
2016年第1期72-74,共3页
Shanxi Coal
关键词
近距离煤层
遗留煤柱
应力集中
调斜
closed distance coal seam
left coal pillars
stress concentration
slope adjustment
