Experience in removing blasted underwater rock | Power …
With the large powder factor necessary for good crushing of the rock, the cost of drilling and blasting operations increases somewhat (by about 7–10%, i.e., by 0.8–1.5 rubles/m 3 ). However, the cost of removing blasted rock by the dredge decreases considerably more (by several rubles), as a result of which the total cost of rock-removing ...
