In Situ Studies on the Characteristics of Strata Structures and Behaviors in Mining of a Thick Coal Seam with Hard Roofs
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DOI: 10.3390/en11092470
Abstract: The movements of overburden induced by mining a thick coal seam with a hard roof extend widely. The effects of breakages in the hard strata on the strata behaviors might vary with the overlying strata… read more here.
Keywords: coal seam; seam hard; thick coal; structure ... See more keywords