RELIEF OF ROCK-BUMP AND STRUCTURALLY DISORDERED DEPOSITS Russian patent published in 2016 - IPC E21F5/00 E21C41/16 

FIELD: mining.

SUBSTANCE: claimed process comprises drilling of wells, placing the explosive charges therein and forming of the crushed rock zone by blasts. Wells are drilled from suitable approach courses to place the explosive charges therein and to create the vertical concentrated charge to unload the rock massif in preset direction by a controlled directed shaking blast. Said vertical concentrated charge is surrounded from three sides with a buffer ply of crushed rock by exploding the charges fitted in drilled vertical wells. Then, the vertical concentrated charge is initiated to affect the rock massif strain concentration zone by seismic blast. Note here that the charge bulk is defined by the formula.

EFFECT: higher efficiency of relief, safe mining.

1 dwg