ANALYSIS OF EXPLOSION EFFECTS ON UNDERGROUND MINE WORKINGS OF THE MAGNEZITOVAYA MINE
V. A. Kutuev, P. V. Menshikov, S. N. Zharikov
Institute of Mining, the Ural Branch, Russian Academy of Sciences, Ekaterinburg, Russia
Keywords: Seismic effect of an explosion, blasting operations, seismic recorders, industrial safety, safe distances, peak vibration velocity, permissible vibration velocity, seismic stability
Abstract
The seismic effect of man-induced explosions on underground mine workings of the Magnezitovaya mine was assessed. The seismic stability of rocks in the Magnezitovaya mine was determined and safe distances from man-induced explosions were calculated based on the permissible seismic effect for rocks. To establish the dynamic impact on the workings, the URAN and Minimate Plus seismic recorders with three-component seismic receivers were used. As a result of comparison of the calculated values and the results of experimental measurements, recommendations are given for setting a limit on the mass of explosives in the deceleration stage at the level of minimum dangerous values during man-made explosions in an underground mine.
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