Blasting Process In Line Mines

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Blasting is one of the most feared and least understood aspects of mining operations in Ohio and elsewhere. But on a typical day under good economic conditions, nearly half a million pounds of explosives are safely detonated in Ohio’s quarries and surface coal mines.

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In underground mines oversize may cause hang-ups in the ... Cast blasting is the controlled placement of overburden into the ... H_BLASTING IN SURFACE EXCAVATION

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Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation.

Information Circular 9135 Surface Mine Blasting Proceedings: Bureau of Mines Technology Transfer Seminar, Chicago, IL, April 15, 1987 Compiled by Staff, Bureau of Mines

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