Quarry Drilling and Blasting Works

Abstract

Drilling - blasting work during welding ensures the formation of the weld section of the specified shape and size , precise demarcation of its shape , high-quality crushing of rocks, high coefficient of use of spurs . . This requirement is subject to the condition of correct selection of drilling -blasting parameters : type of explosive, size and structure of the charge in the spur, depth of the spurs , number and location of the spurs. To justify the impact of blasting quality on increasing the efficiency of drilling and blasting in open mining of mineral deposits.