近距离煤层下行开采巷道布置研究

Roadway Layout of Downward Mining in Close-distance Coal Seam

针对神东公司柳塔矿近距离煤层下行式开采出现的问题,分析了对上煤层煤柱的稳定性及煤柱下底板压力传播规律,得出了下煤层回采巷道难以维护的原因,并根据现场实测数据及理论分析,最终得出相应的治理对策,取得了良好的使用效果。

To solve the problems in the downward mining in close-distance coal seam in Liuta mine, the paper found out the causes of difficult maintenance of lower seam roadways on the analysis of the stability of upper seam pillars and stress transmission law of the floor beneath the pillars. In addition, according to the experiment data and theoretical study, the countermeasures were proposed and have achieved ideal effects.