克里沃罗格矿山企业生产联合公司(ПО“Кривбассруда”)的各地下矿,采用矿房回采、崩落矿石和围岩的阶段采矿法开采磁铁石英岩极厚矿床。应用这些采矿方法,矿体都划分成矿块,而矿块的采准和回采一般都是按矿块为单元进行。对矿块采准和回采方式的研究确定,掘进天井、从天井和水平巷道中开凿巷道和完成补偿空间的劳动和材料消耗最大。 The underground mines throughout the Kreyovo Rog mine production company (ПО “Кривбассруда”) exploit the ultra-thick magnetite quartzite deposits using the stage mining method of mining, caving and surrounding rock mining. Application of these mining methods, the ore body is divided into ore blocks, and mining block mining and mining are generally based on the unit as a unit. A study of the methods of quarrying and recovery of nuggets identified that the labor and materials consumed to excavate the pavements, excavate the tunnels from the patios and horizontal tunnels, and to complete the compensation space are the largest.