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pro vyhledávání: '"Dan Neilans"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 26, Iss 1, Pp 9-18 (2016)
A coal outburst is a severe safety hazard in room-and-pillar mining under deep cover. It is more likely to occur during pillar retreating. Multi-seam mining dramatically increases the risk of coal outburst within the influence zones created by remnan