ABSTRACT
The classifications and risk indicators accepted for geodynamic safety are mostly of a qualitative nature. This is explained by the complex physical process of the focal point formation and realization of a dynamic event; by a large number of mutually affecting factors, and the difficulty in mathematical formalization for determining the quantitative parameters of the hazard level.
At that, the levels of geodynamic risk, depending on a potential geodynamic event, a development stage of a dangerous situation or the description of a probable dangerous process, are subdivided into low, medium and high. The paper presents the results of estimating geodynamic risk values for the Khibiny apatite mines. Based on the values of the probable occurrence of geodynamic events, the level of consequences has been determined from the available geodynamic event database officially registered by the rockburst commissions at the Kola branch JSC Apatit mines. It is shown that the greatest damage from geodynamic occurrences is inflicted to mining excavations, that is, to the technological process. Along with the geodynamic risk forecast and assessment, the management of these risks is of paramount importance. For this reason, a series on regulatory documentation has been developed. In order to assess the expected damage from potential destruction, all the mine excavations were divided into three classes in terms of the importance for the normal mine running. Depending on the class of excavations, the magnitude of the expected damage increases. For the apatite mine excavations, the sets of preventive measures and types of fastening have been established depending on their predicted condition.
