Rational volume of the dirtied rock mass of large-scale blast during quarry development

The growing volumes of mining operations have revealed a number of tasks, one of which is a brief justification for evaluation of the rational volume of the blasted rock mass per one massive explosion when projecting the exploitation activities of solid and common minerals and planning the development of open-pit mining. During the research work, we have identified a correlation between the volume of the explosive block and the average productivity of the excavator per block. The article proposes the use of medium-volume blocks against application of a specific number of machines, which prepare the block for blasting, to increase the average productivity of the excavator per block. The identified dependence can help in projecting the exploitation of minerals and planning the development of open-pit mining, which will increase the profitability of mining production.