Theoretical Background of Large-Scale and Selective Blasting Effect on Rocks in Complex Ground Conditions
S. D. VIKTOROV, V. M. ZAKALINSKY, A. A. OSOKIN
Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
Keywords: open pit mining, underground mining, geotechnology, stripping, explosive, structure of rocks, scale of breaking, charge design
Abstract
This is the first attempt to analyze theoretically large-scale blasting effect on rocks in complex ground conditions, including selective breaking. The authors consider utilization of the direction effect of blast energy using different charge designs, which is implemented as replacement of large diameter charge with a round of smaller size charges with equivalent total energy. Under discussion are new options of blast energy transfer and distribution in rocks.
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