摘要
针对上煤层采动条件下煤层底板破坏这一实际问题,采用数值模拟试验和相似材料试验的方法对工作面不同推进距离底板破坏特征进行研究,确定了采动条件下底板的破坏特征与工作面推进距离之间的关系,可为近距离煤层下层煤开采回采巷道布置、支护及顶板管理方案的确定提供指导。
Based on the problem of coal seam floor destruction under upper coal seam mining, floor failure characteristics of different mining distance was studied by numerical simulation test and similar material test, the relationship between floor damage characteristics and working face mining distance was settled, which provided reference for the layout, support and roof manage of roadway in close coal seam mining.
作者
刘亮
Liu Liang(Jinhuagong Mine, Datong Mining Group, Datong 037000, Chin)
出处
《煤炭与化工》
CAS
2017年第11期34-37,40,共5页
Coal and Chemical Industry
关键词
近距离煤层
底板岩层
数值模拟
相似模拟
close coal seam
floor stratum
numerical simulation
similar simulation
