FIELD: mining.
SUBSTANCE: method includes development of a coal bed, using hydromining, powered support, face-end supports and tight bridges. At the same time simultaneously with coal extraction, its transportation and grinding, methane is sucked out along the face and in couplings with the mining face, via nozzles. To do repair works, workers enter the mining face via doors installed in movable tight bridges equipped with pneumatic cushions along the perimetre.
EFFECT: improved safety of mining works.
4 dwg
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