METHOD OF BORE-HOLE HYDRAULIC MINING OF MINERALS Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: method can be used in mining deposits with unstable ores such as diamond-carrying kimberlites. Work face is dried by compressed air supplied from ground surface. Mineral falling into face area is partly collected before watering and is disintegrated. Mining is performed by hexagonal cells with initial working of peripheral chambers one after another with filling worked-out space with hardening mixtures. After hardening of filled material, mineral is extracted in last peripheral chamber and central chamber is stowed. EFFECT: high efficiency. 2 dwg