METHOD OF ROCKS BREAKAGE Russian patent published in 2002 - IPC

FIELD: mining; applicable in splitting of oversizes, disassembly of structures, separation of blocks from solid mass by breakage, production of building stones and crystalline materials. SUBSTANCE: method includes drilling of boreholes, filling them with nonnewtonian fluid, and then, with loose material and intruding into loose material of wedges to which periodic loading is applied. Longitudinal fissures are formed simultaneously in three planes running through borehole axis. Angle between two any planes are within 90 to 180 dwg. EFFECT: higher efficiency of rock breakage. 3 cl, 3 dwg