摘要
文章阐述了近距离煤层群中有突出危险煤层上保护层区段煤柱 ,对被保护煤层采面布置的影响 ,提出了减小保护层区段煤柱的途径。
The paper expounds the influence of rib pillars in the upper protecting burst prone coal seam of close range seams on the layout of mining faces in the lower protected seam, presents the path to reduce the pillar sizes
出处
《煤矿开采》
2001年第2期13-15,共3页
Coal Mining Technology
