FIELD: mining and building equipment, particularly to cut oversized rock pieces and to separate rock blocks from rock massif, building stone production and foundation demolishing during building and building structure reconstruction.
SUBSTANCE: method involves drilling hole 2; supplying non-Newtonian liquid 5 in the hole; supplying frictional material in the hole; immersing working tool 7 in the hole and applying impact load to working tool. Before non-Newtonian liquid 5 supply expanding static action 3 is applied to hole 2 bottom and side wall in plane transversal to plane of crack to be formed. Above action is applied after non-Newtonian liquid 5 supplying up to crack initiation in rock 1, wherein frictional material 6 with elasto-plastic properties is used.
EFFECT: increased efficiency of rock cutting due to reduced power inputs.
7 cl, 2 dwg
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