ABSTRACT
Researching the influences of the type of VV on the quality of the excavation outlining that is determined by the characteristic the VV brisance has been undertaken. The experiments have been made at constant burden between perimeter shotholes ax, LNS, W and the boreholes diameter, but with various VV types at a specific loading qo equal to 0,3, 0,45 and 0,1 kg/p.m.
