Detonator explosive consumption per ton of ore in medium-long hole mining

the detonator consumption is 4 rounds, and the explosive consumption per meter is 24.8kg .. The consumption of traditional blasting technology in deep hole excavation in hard rock roadway is as follows: * * * 4 blastholes are arranged, the surrounding holes are extended by 1.2 meters, the cut hole depth is 1.5 meters, the blasting depth is about 1. meters, the circulating charge is 24.8kg, the detonator consumption is 4 rounds, the charge consumption per meter is 24.8kg, the utilization rate of blastholes is 83%, and the average monthly progress is 78 meters.