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ArticleName Connecting seismic event distribution and tectonic structure of rock mass
DOI 10.17580/gzh.2020.01.05
ArticleAuthor Kotikov D. A., Shabarov A. N., Tsirel S. V.

Saint-Petersburg Mining University, Saint-Petersburg, Russia:

D. A. Kotikov, Senior Researcher, Candidate of Engineering Sciences
A. N. Shabarov, Director of Science Center for Geomechanics and Mining Practice Problems, Doctor of Engineering Sciences,
S. V. Tsirel, Chief Researcher, Doctor of Engineering Sciences


The article studies the dependence of the location and distribution of blasts and seismic events of different energy according to the distance from the local geological faults. The statistical method was chosen for the research. This method is the most appropriate to process massive volumes of data, such as data on the seismic events and blasts. The sufficient accuracy in the localization of faults can only be guaranteed within the boundaries of the mining field sections near mining sites. The required accuracy of the fault location outside these areas is questionable. Therefore, the analysis was focused on the sections (layers) of the mining field lying near the working horizons of the mine. The data on the intersections of working horizons from the known geologic faults were selected from the geological model. The information was obtained from the primary documentation: mine development registers, mapping results and faults detection by method of magnetic induction. Events that lie within the analyzed areas were selected from the array of seismic events. The analysis was carried out retrospectively. The analyzed period was about thirty years. Seismic events lying within the fault zone were chosen taking into account the accuracy of determining the position of faults and hypocenters of seismic events. These seismic events were considered to have occurred under the influence of the faults. After the selection of the relevant seismic events lying in the fault zones, the chosen seismic events were analyzed according to the energy distribution. From the data obtained during this study, the quantitative indicators allowing determining the influence of the geological faults on the seismicity of the rock mass were identified. The seismic events were distributed according to their intensity and depending on the distance from the geologic faults. The influence of massive explosions on the general energy level of seismic events was taken into account. The dependence of the influence of mining on the rock mass seismicity was found. The conclusion about the need to improve the accuracy of the geological model of the field was made.

keywords Seismic, tectonics, geological faults, blasts, rock mass, tectonic blocks, monitoring system, statistical analysis

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