METHOD TO RECOVER HYDROLOGICAL REGIME OF MINING FACILITY Russian patent published in 2007 - IPC E02D19/06 E21F16/00 

FIELD: mining, particularly to reduce ejection of underground water flowing into mine during mining operations to ground surface.

SUBSTANCE: method involves receiving and collecting of mine inflow, which enters mining zone from cone of depression along mine tunnels; cleaning mine inflow; accumulating thereof in underground water accumulation means and delivering mine inflow into water-bearing seam. Mine inflow is supplied out of cone of depression located outside of mining zone in direction of water-bearing seam depression line to provide water return in operating mine tunnels, wherein distance between lower edge of cone of depression and point of mine inflow supply must be not less than width of mine inflow spreading in water-bearing seam. Mine inflow to be discharged from water accumulation means is supplied to intermediate sump and then is filtered in water-bearing seam due to intermediate sump location in water-bearing seam. Mine inflow is supplied to underground or land-based intermediate sump.

EFFECT: increased efficiency of hydrological regime recovery and improved ecological safety due to landscape conservation and enhanced industrial safety due to elimination of underground gas accumulation in dewatered water-bearing seams.

4 cl, 3 dwg