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    Abstract this paper presents an approach to improve overall blasting efficiency in an iron ore mine.The problems existing in the mines were oversize fragmentation, severe backbreak, frequent secondary drilling and blasting operations, sloping bench faces and irregular bench profiles.Thorough analysis of the blasting practices and results was done in the search of key parameters affecting.

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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, tunnel or road construction.The result of rock blasting is often known as a rock cut..

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