Fragmenting of cylindrical rock specimens under explosive load: Comparison between model and laboratory results

Important parameters that describe successful sublevel stoping operation are optimal fragmentation and low damage of rock mass around stopes. In current state of operation fragmentation of blasted material is not optimal since high percentage of fragments are oversized which requires additional sizing. Also, excessive damage of surrounding rock mass is found. By proposing new blasting pattern with slightly increased amount of drilling, but with decreased hole diameter decrease of explosive usage is obtained for more than 100kg. Along with better charge distribution it is expected that rock mass damage is to be decreased as well.

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Fragmenting of cylindrical rock specimens under explosive load: Comparison between model and laboratory results

Abstract: Achieving optimal fragmentation of the blasted rock is common

Cited by 2 publications

References 11 publications

Reliability analysis of the induced damage for single-hole rock blasting

Reliability analysis of the induced damage for single-hole rock blasting

Optimization of ring blasting in sublevel stoping gold mine

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