| 摘要 |
FIELD: mining, particularly to cut blocks from massifs, road construction in mountainous territories, as well as for building stone and crystalline material production. ^ SUBSTANCE: method involves drilling blast-holes; filling thereof with non-newtonian liquid; supplying working tools in blast-holes; applying impact pulses to working tools. The working tools are pistons. Impact pulses are created by accelerating rod striking the pistons. Device comprises working tool arranged in blast-hole filled with non-newtonian liquid and means, which applies impact pulses to working tool. The device also has guiding pipe adapted to receive means for impact pulses application to working tool so that the means is concentrically arranged inside the guiding pipe and may slide in longitudinal direction. The means is formed as rod. Working tool is made as piston coaxial to guiding pipe and cooperating with rod end. ^ EFFECT: increased efficiency of rock cutting due to creation of impact load inside blast-holes and impact application directly to working tools, as well as simplified device structure. ^ 8 cl, 5 dwg |
