FIELD: blasting.
SUBSTANCE: invention is related to mining industry, construction, and also to chemical industry, and may be used in detection of relative serviceability of industrial explosives with high critical diametres. Method for detection of relative serviceability of explosives includes drilling of wells from upper surface of ledge, placement of explosives in them and explosion with rock tillage as ledge collapses. Results of tests of basis and tested explosives are used to compare difference in change of destroyed rock volumes before and after explosion in absolute indices. Then coefficient of relative serviceability of explosive is detected, by division of change in volume of rock of new explosive caused by explosion into change of volume of rock produced as a result of application of basis explosive. At the same time volumes of rock unit before and after explosion are efficiently detected with the help of laser scanning.
EFFECT: invention makes it possible to reduce expenses and increase efficiency of blast-hole drilling works.
6 dwg
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