2015•Coal and Chemical IndustryRequires access
Multiple Coal Seams Mining Waterproof Height Settlement
Bai Wei-we
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Abstract
Yima Mine north wing filling mining waterproof coal pillar was set based on extremely water bearing the quaternary aquifer, in order to ensure waterproof coal pillar height under single coal seam and multiple coal seams complex mining condition of Yima Mine, the equivalent mining paste filling height was calculated, based on coal mining procedures under village, railway and water body and mine hydrogeological procedures, waterproof coal pillar height under Single coal seam and multiple coal seams was settled.