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作者认为阶段高度的确定,在混合回采时,不仅受穿孔爆破参数的限制,而且受到经济因素的限制。作者着重介绍了后一种情况。并对矿床开采速度、列车调车制度和设备的维护费等经济因素进行了分析。
The authors believe that the determination of the stage height is not only limited by the parameters of perforation blasting but also restricted by economic factors in the mixed mining. The author focuses on the latter case. The economic factors such as mining speed, train shunting system and equipment maintenance fee are also analyzed.