ORE BODY MINING METHOD Russian patent published in 2011 - IPC E21C41/22 

FIELD: mining.

SUBSTANCE: method involves division of the working area into chambers, preparation of cutting space and ore receiving openings in lower part of the chamber, layer-by-layer ore breaking to the filling mass with battery of wells with simultaneous ore supply by break force to ore receiving openings, backfilling of chambers after they have been worked out. As the layers are broken in parallel wells with simultaneous short delay breaking of the opening for their drilling with D width equal to two lines of least resistance, flexible covering is mounted in sections above the filling mass consisting of loose backfill material; width of section of the above covering is equal to least resistance line, and inclination angle of chamber is equal to angle of natural slope of loose backfill material; at that, height of chambers is accepted on the basis of the most complete filling with loose backfill material.

EFFECT: reducing the prime cost of finished product, enlarging the application area, reducing labour intensity for execution of method related operations.

2 cl, 2 dwg