DEVELOPMENT METHOD OF STEEPLY-DIPPING ORE BODIES Russian patent published in 2010 - IPC E21C41/22 

FIELD: mining.

SUBSTANCE: method of development of steeply dipping ore bodies by systems with shrinkage in not-enough stable surrounding rocks, including preparation and cutting of block by deliveries 1,2,3, break, partly and total discharge through loading hatches 4 shrinked ore. During break and partly discharge of ore it is formed inside the magazine artificial massif of muck in the form of vertical column 5, and ore yield from artificial massif is implemented after full discharge of shrinked ore.

EFFECT: invention provides ensured by management of confining pressure in the range of block increasing of its working length, and work front in breakage face and effectiveness increase of stoped excavation.

4 dwg