ROCK CUTTING METHOD Russian patent published in 2005 - IPC

FIELD: mining, particularly to cut oversized pieces, break building structures, cut blocks from rock massifs, produce building stone and crystalline stock material.

SUBSTANCE: method involves drilling boreholes; supplying Newtonian liquid poured in shells made of elastic-plastic material; arranging wedges in the boreholes and applying periodical impact load to wedges.

EFFECT: increased ability of borehole filling with Newtonian liquid without air pocket formation, reduced influence of accidental cracks and weakening planes on direction of crack to be formed.

4 cl, 4 dwg