FIELD: mining.
SUBSTANCE: method of protection of open pits against ground waters includes excavation of a water collecting trench round the perimeter of the open pit; the trench is connected with a tank provided with a pump installation. Construction of an enclosed system of water intake wells round the open pit in the water-bearing stratum at a distance less than the design depression radius. Creation of a water curtain by delivery of ground waters out of the tank into the water intake wells. Ground waters mixed with fine material is fed into the water intake wells, the mix being prepared in the tank provided with a mixing chamber.
EFFECT: reduction of costs for protection of the open pit due to reduction of the volume of ground waters fed into the water intake tank.
2 dwg
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