METHOD OF HYDRAULIC BOREHOLE MINING Russian patent published in 1998 - IPC

FIELD: mining; applicable in mineral borehole mining. SUBSTANCE: method consists in dividing of deposit into panels with three rows of wells. Wells of extreme rows are used for installation of hydraulic giant tools, and wells of the middle row are used for pulp lifting. Panel is worked successively by chambers of two types with creation of sloping bottom plate. In chambers of the second type, bottom plate is created with additional sloping from medium line drawn from chamber corners in which well of extreme row is found. In overdrilled parts of lifting wells rock collectors are installed and packaged. EFFECT: reduced losses of minerals in the form of crystal raw material; decreased power consumption for transportation of mineral; higher efficiency of mining of mineral deposits. 3 cl, 2 dwg