Authors: M.A. Vlasov, O.V. Gerasimov, N.Y. Nikulin, S.M. Prostov

Title of the article: Adjustment of seismicity of the section of the north-western bypass of Kemerovo

Year: 2023, Issue: 4, Pages: 15-25

Branch of knowledge: 1.6.9. Geophysics, geophysical methods of prospecting for minerals

Index UDK: 550.34.06

DOI: 10.26730/1999-4125-2023-4-15-25

Abstract: The technique of conducting seismic micro-exploration by the method of refracted waves and a complex of borehole geophysical studies, including methods of gamma-gamma and gamma-logging, apparent resistances and natural polarization, is described. In order to construct a velocity section, seismic sounding was performed in the modification of single seismic sounding with the receipt of a pair of counter hodographs and a hodograph obtained at the central excitation point. Model including parameters of seismic domains of the research area and lineaments is constructed. The domains cover the volumes of the geological environment, within which the foci of moderate and low magnitude earthquakes are located (scattered) with equal density. Lineaments are a model of faults, their coordinates in the plan are obtained by interpreting the structural-tectonic map, and the seismic regime is calculated from the processing of the earthquake catalog. The lineaments carry the main part of the seismic potential, since the foci of the largest earthquakes are located along them. Based on a comprehensive analysis, the results of estimating the calculated intensity, velocity cross sections and oscillation parameters for earthquakes with different recurrence periods are presented. An assessment of the seismic intensity is given based on the results of seismic micro-exploration and a forecast of the seismic properties of soils, according to the results of which the seismic intensity was reduced by 1 point on each support.

Key words: seismic micro–exploration work wave refraction gamma-gamma logging domains lineaments velocity sections seismic intensity

Receiving date: 17.05.2023

Approval date: 20.09.2023

Publication date: 27.09.2023

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