This paper describes methods of measuring the velocity of detonation in bore holes loaded with different types of bulk explosive, such as heavy ANFO and cartridge explosives. The explosives are produced at the point of use with mobile equipment. The measurements of the velocity of detonation (VOD) involved bore holes with different diameters. On this basis the interdependence of the VOD and the bore-hole diameter was determined. The VOD measurements, with different blasting parameters, can be used for the selection of the best explosives to be produced at the site, taking into account the geological characteristics of the blasting rock.
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