METHOD OF ELECTROHYDRAULIC BREAKAGE OF SOLID BODIES Russian patent published in 2001 - IPC

FIELD: rock working with use of electric pulse technology for breakage of rocks in manufacture of building materials. SUBSTANCE: method includes drilling in solid body to be broken of uneven number of boreholes spaced along line of body splitting, filling them with liquid and placing electrodes into then for performance of pulsed electric discharges acting on solid body by shock waves and hydraulic pressure on borehole walls. In this case, solid body is acted upon by two spaced in time pulses, where the second pulse acting on solid body is generated by pulsed electric discharges in even (intermediate) boreholes with dely relative to discharge in uneven boreholes executing the first pulse of action. Shock waves in the second pulse act on prestressed sections of body with formed fractures, sharply increase their growth and result in body splitting along preset line along which boreholes are drilled. EFFECT: possibility of splitting of large rocks including noncrystalline along desired line for one cycle with higher efficiency of work, reduced energy consumption due to its more efficient utilization. 2 dwg