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Blast Sidecasting In Surface Coal Mines Scribd

Mar 16 2015018332Explosives and blasting in underground coal mining 1 EXPLOSIVES AND BLASTING IN UNDERGROUND COAL MINING M S S S SASHANK 113MN0482 2 INTRODUCTION All seams in underground coal mines are considered gassy the degree of gassiness may vary from I to III Methane gas that is released from during excavation when mixed in the proportions between 5.

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