Determination of Water-Proof Coal (Rock) Pillar Height in Mining Coal Seam Group under Water-Bearing Rock Stratum
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DOI: 10.1155/2021/6699726
Abstract: In order to determine the reasonable height of water-proof coal (rock) pillar when mining multiple coal seams under aquifer, this paper analyzes the expansion height of water-conducting fracture zone when coal seams mining. Considering the… read more here.
Keywords: proof coal; water; water proof; coal rock ... See more keywords