METHOD OF HYDRAULIC COAL MINING FROM GAS-BEARING FORMATIONS

摘要

FIELD: mining.SUBSTANCE: method of hydraulic coal mining from gas-bearing formations is offered which consists in field opening by wells, destruction and transfer of mineral into hydromix, mixing, sedimentation of dead rock on the bottom of the formed cavity, pumping out of water coal suspension to the surface and its transportation by pipes to consumers. The preliminary degassing and pressure relief of overlying and underlying outburst coal beds and the containing rock mass are performed by borehole coal mining from the formation dangerous by emissions of rock coal and gas taken as protective one. The mining wells are arranged so that boundaries of protective zones of the developed formation to be arranged evenly along the protected formations.EFFECT: improvement of safety of mining operations when developing suite of gas-bearing coal beds.2 dwg