METHOD TO PRODUCE INERT MATERIALS Russian patent published in 2013 - IPC E21C41/26 E02B3/00 

FIELD: mining.

SUBSTANCE: method to produce inert materials from aggradational deposits of mountain river beds, including diversion of a water stream away from production borders with the help of gutters and dams without violation of coastal zone borders and safety benches. The stage production of rock mass and controlled wash of river sediments into a mined space of a pit along an inclined mine (trench). On the opposite board of the pit from the water conduit (current river bed) they form a separation zone with ledges protruding towards a mined space, and the inclined mine (for water conduit) stretches in direction of the separation zone. In process of controlled wash they carry out separate deposition of coarse and find fractions of sediments.

EFFECT: higher efficiency of production in limited areas without violation of coastal zone borders due to controlled formation of localisation zones in the mined space of the pit differing by size of aggradational sediments.

3 dwg