论文部分内容阅读
介绍了重复采动对地面建筑物的危害,并提出危害特点、提出了在垂深较小时,多煤层重复开采,地面建筑又较密集时,应加以经济对比,避免吨煤增加成本。
The hazards of repeated mining on the ground buildings are introduced and the characteristics of the hazards are proposed. It is proposed that when the vertical depth is small, multiple coal beds are repeatedly mined and the ground buildings are relatively dense, economic comparison should be made to avoid the increase of the cost of the coal.