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分析克里沃罗格矿区和戈尔诺阿尔泰各矿山采用阶段崩落采矿法的经验表明,开掘切割槽和崩矿是这种采矿法最费劳力的两项作业。开掘切割槽需要掘进切割天井,凿岩坑道和在狭窄条件下钻凿小参数的炮孔。切割槽质量差常引起崩矿不完善,使得回收指标降低。采用向垂直切割槽崩矿的分段崩落法回采时,这种情况对矿石损失指标的影响
Analysis of the experience with the Caving mining operations at the Kreyovooglu Mine and the Gorno Altai mines using the caving mining method shows that the most labor-intensive operations of this mining method are the two excavation slots and collapses. Digging cutting grooves requires cutting tunnels, rock tunnels and small holes drilled in narrow conditions. Poor quality of the cutting groove often causes the collapse of ore is not perfect, making the recovery indicators lower. The effect of this condition on the ore loss index when using the subsided caving method for vertical cutting flume collapse