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

FIELD: mining industry. SUBSTANCE: the offered method includes drilling-in of producing bed in each mined panel by holes, installation in each hole of pulp lifting string, washing-out of producing bed by borehole hydraulic giant with formation of production rooms, lifting of pulp to the surface, and filling of worked-out space of each extracted room. Panels are worked in two stages by rooms cylindrical in shape. Worked-out space of room in panels of the first stage is filled with cementing fill. Panels of the second stage are worked between panels of the first stage by sections consisting of, at least, two simultaneously worked rooms. Before working of the next section, separating pillar is formed on the boundary with mineral mass by leading extraction and filling of worked-out space of single room with cementing fill. EFFECT: higher efficiency. 4 dwg