Improvement of Rock Fragmentation by Blasting with Distributed Charges
A. P. ANDRIEVSKY1, B. A. AKHPASHEV2
1Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Bld. 24, Krasnoyarsk, 660041 Russia
2Siberian Federal University, pr. Krasnoyarskii rabochii 95, Krasnoyarsk, 660025 Russia
Keywords: взрывная отбойка, рассредоточенные заряды, волны напряжений, зона трещин, blasting, distributed charges, stress waves, fracturing zone
Abstract
The formulas and schemes are presented to determine the length of charges and their inert gaps. The calculations are based on the theory of superposition of seismic waves under blasting in rock mass. The proposed procedure enables calculating parameters of distributed charges under any ground and geotechnical conditions of blasting ensuring quality fragmentation, elimination of flyrock and reduction in drilling operations.
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