Problems of Engineering Seismology: article

Аnnotation: Based on the data of regional networks of seismological stations and experiments with time networks, the degree of seismic impact of industrial explosions to the south of Western Siberia is investigated. Since the explosions at all mining enterprises were ripple-fired shots, the magnitudes were studied from the total explosion charge and the dependence of magnitudes on the delay stage. On average, there is a slight increase in magnitudes with an increase in the total charge and charge of the stage, but a strong scatter of data from the averaging straight line is recorded. It is not uncommon for cases where large magnitudes are recorded for explosions with smaller charges of steps. The noted experimental features are explained by the coincidence of the initiation time of the wells in different rows, which intensifies the interference of the seismic effect of explosions with the violation of the technology of ripple-fired shots. The monitoring system made it possible to investigate the seismic impact on the region from mining enterprises for the extraction of minerals. Comparison with the registered induced seismicity showed that the sections with the strongest industrial explosions are not cuts with the strongest induced seismicity. The facts of the absence of man-caused earthquakes near the excavations with high explosive energy have been established and, on the contrary, cases of existence of induced seismicity in places where there is no direct explosive effect on the activated zone.