FIELD: mining.
SUBSTANCE: invention relates to the field of underground mining of minerals containing precious or semiprecious stones or metals and hollow or steep incidence of veins. Method includes extracting a useful mineral by cutting it out of the bottomhole massif in large blocks using hydraulic cutting machines and hydromonitor type actuators equipped with cutting heads and mixing chambers with abrasive water and connected through metal tubes, on which they are rigidly fixed, with a water supply hose coming from multipliers, giving the water ultra-high pressure. When mining a fossil, cutting all the cracks in the array is done only by a hydro-cut method with a stationary machine with multipliers. Only the tool moves with cutting heads mounted on the carriages, which are able to move before the cleaning face of the workpiece along the horizontal and vertical guides. Abrasive is fed into the hydro-cutting head through a hose from a fixed hopper with an abrasive located directly in the cutting zone.
EFFECT: increases the productivity of the mining enterprise.
1 cl, 3 dwg
