METHOD FOR CUT-AND-COVER MINERAL FIELD DEVELOPMENT Russian patent published in 2005 - IPC

FIELD: mining industry, particularly methods of underground or surface mining.

SUBSTANCE: method involves performing opencast mining; performing underground preparation and cutting workings; excavating mineral in breakage face; transporting the mineral to day surface in open pits; installing cutting-off support along pillar to be excavated in worked out space at day surface as breakage face moves forward; forming rubble band with waterproofing layer at day surface, wherein rubble band width B is determined as B≥5m, where m is mineral deposit thickness.

EFFECT: provision of efficient mine venting, prevention of flooding thereof with rain water.

2 dwg