Mine Blasting & Explosives Technology, and Safety Regulations .In virtually all forms of mining, rock is broken by drilling and blasting the rock. . to the rock structures and cause unwanted caving and large increases in support costs. Blasting is used in both open pit and underground mining operations.big bench blasting in mining operations,A novel powder factor based bench blast design . - Scholars' MineThis research examines the typical scale of bench blasting at large surface coal mines, develops a new method of design tailored for these operations, and tests.
big bench blasting in mining operations