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Journal of Mining Sciences

2020 year, number 6

A Method for Calculating Effect of a Blast-Induced Seismic Wave on Nonuniform Enclosing Rock Mass around a Tunnel

A. P. Gospodarikov, Ya. N. Vykhodtsev, M. A. Zatsepin
Saint-Petersburg Mining University, Saint-Petersburg, Russia
Keywords: multi-level Drilling and blasting, nonuniform rock mass, computer system, system of differential equations


The authors propose a mathematical model of the effect exerted by a blast-induced seismic wave on nonuniform (multi-layer) enclosing rock mass around a tunnel. The developed numerical algorithm implements the Godunov splitting method, and a computer system is constructed. The numerical calculations determine safe drilling and blasting parameters to preserve integrity of underground structures.