FIELD: mining.
SUBSTANCE: invention relates to mining industry and can be used in stone blocks production. Method includes formation of bench, block delineation by blast holes system located in vertical, side and horizontal planes, blast holes filling with not explosive destructive means, block separation from formation by creating of stretching forces along its contour, bench side surface is formed with angle of 90°, in vertical blast holes arranged along block length sections of detonation cord are placed and sealed with plug, initiating detonation cord and block is shifted into stripped area under detonation wave effect.
EFFECT: higher safety of operations, excluding of additional works on chipped off block displacement and obtaining of regular-shaped blocks.
1 cl, 2 dwg
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