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A quarry may need several explosives supervisors to cover all the work, for example where blasting takes place on several shifts. If this is necessary for the working of the

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Drilling and blasting - Wikipedia

Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining , quarrying and civil engineering such as dam or road construction.

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A better approach than attempting to blame factors that are beyond the shotfirer’s control is to try to solve these problems and reduce excess blasting, uneven floors, and possibly mechanical removal, by following a systematic approach to identify what is causing the toe.

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Complementing Orica’s Bulk Systems and Packaged Explosives products, these products are suitable for application in surface and underground mining, construction, quarrying and tunnelling applications.

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Chapter 8 BLAST DESIGN - National Park Service

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