METHOD OF DESTRUCTION OF ROCK AND FACILITY FOR IMPLEMENTATION OF THIS METHOD Russian patent published in 2009 - IPC E21C37/02 

FIELD: mining.

SUBSTANCE: method consists in drilling boreholes, in arranging vibration oscillations sources in them, in initiating oscillations in rock massif and in destruction of rock. Pin wedges are implanted into walls of boreholes; the wedges are connected to the vibrator and are used as vibration sources. Pin wedges are implanted in planes parallel to free surface of massif. Oscillation of pin wedges is performed along axis perpendicular to planes of their implantation. The facility consists of a power cylinder with a piston, of a rod with an expansion end let through the power cylinder and designed to lengthwise travel, and of a collet with petals, whereon pin wedges are assembled; the collet is put on the rod and is connected with the power cylinder. The facility is equipped with the vibrator installed on the collet. Efficiency of the method is increased due to coincidence of destructing forces conditioned with natural stress field, oscillation excitation and wedging of rock.

EFFECT: increased efficiency of facility operation due to destructing rock with stretching force and oscillating mode.

8 cl, 2 dwg