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

FIELD: mining industry. SUBSTANCE: the offered method includes drilling-in of productive field with producing holes by system of hexagonal cells, mounting of mining equipment, washing-out and extraction of mineral by borehole hydraulic giant units with formation of production rooms. Washing-out and extraction of mineral in each hexagonal cell is started form formation of central production room whose worked-out space is filled with cementing mixture. Then, fixed support is installed above filled room. Movable support is installed beyond the boundary of hexagonal cell. Mounted on the indicated supports is working platform from which washing-out and extraction of mineral are carried out with formation of periphery production rooms whose worked-out space is filled with caved enclosing rocks and formed caving funnel is filled with loose fill. EFFECT: higher efficiency.