Characterization of underground rock fragmentation |
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| Authors: | A Singh M Scoble Y Lizotte G Crowther |
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| Institution: | (1) Department of Mining and Metallurgical Engineering, McGill University, 3480 University St., H3A 2A7 Montreal, Quebec, Canada;(2) Canadian Mine Technology Laboratory, Canada Centre for Mineral and Energy Technology (CANMET), 555 Booth St., K1A 0G1 Ottawa, Ontario, Canada;(3) Brunswick Mining and Smelting Corporation Limited, Box 3000, E2A 3Z8 Bathurst, New Brunswick, Canada |
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| Abstract: | Summary This paper focuses on the methodology and techniques developed to characterize the rock fragments produced by blasting in an underground environment. This work formed part of an integrated approach to the optimization of blasting design at a Canadian mine. Details are given of the photographic and image analysis techniques adopted, together with data from a program of full scale, study blasts in the mine. Features of the observed fragmentation are reviewed which related to controlled variation in the blast designs, together with other factors which were observed both to influence fragmentation characteristics and to interact with loading equipment productivity. |
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| Keywords: | Image analysis blasting mine productivity |
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