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Keywords: top coal
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Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-057
... optimization, and blasting effect of B1+2 steep coal seam of Weihuliang coal mine were analyzed comprehensively. Then, the pre-splitting blasting was applied successfully in 52 m sublevel top-coal caving and weak the coal effectively. Finally, the blasting effect was detected in broken zone with RSM-SY5...