METHOD OF DRAINING OF TUBELIKE MINERAL DEPOSIT Russian patent published in 2010 - IPC E02D19/10 

FIELD: mining.

SUBSTANCE: closed working is driven in water-impermeable rocks of tubelike deposit occurrence. Fans of upward drain holes are drilled from it. Leak proof water intake chamber is constructed. Mouth of each upward drain hole is leakproof connected by pipeline to water intake chamber by running pipeline along works driven before. Water-raising holes are constructed within limits of water intake chamber. Method may be modified, for this purpose additional water intake chamber is constructed in zone of water-raising holes after working of "wet" day-drift with overlapped drainage layer of its orifice above pit bottom. "Dry" day-drift is worked above crossing "wet" day-drift. Water-removing holes are drilled to "dry" day-drift from lower water-intake chamber. Pumps supply subsurface water to "dry" day-drift through water-removing holes. Access of subsurface water and surface water from day-drifts to additional water-intake chamber is provided by gravity, providing blowoff of gas dissolved in subsurface water to atmosphere through "dry" day-drift. Then water from water intake chamber is supplied by pumps to daylight.

EFFECT: reduction of drainage works cost and improvement of their performance safety.

2 cl, 9 dwg