Abstract
Based on the analysis of existing approaches in the prediction of dynamic phenomena of rock pressure, it was established that the basis of most methods is the kinetic concept of the destruction of solids. A team of authors from the Mining Institute of the Far Eastern Branch of Russian Academy of Sciences has developed a method of geomechanical monitoring of a rock massif state, which consists of analyzing the dynamics of the acoustic active zones formation and predicting the impact hazard based on the established regularities of changes in the geoacoustic activity. This paper proposes an automated method for identifying focal zones, based on preliminary exclusion of background radiation using a non-parametric density estimation method, identifying seismoacoustic active zones by means of probabilistic cluster analysis and parameterizing focal zones by selecting a characteristic ellipsoid.
Highlights
According to the results of the analysis of existing methods for predicting the dynamic manifestations of rock pressure, it has been established that most methods working based on the kinetic concept of the destruction of solids
The method is designed to determine the shock hazard index of a potentially dangerous focal zone, which is detected and qualified according to the results of continuous seismic-acoustic monitoring in an automated mode
The parameters of seismoacoustic events registered by the automated system of rock pressure monitoring “Prognoz ADS” on one of the sections of the mine field were analyzed
Summary
According to the results of the analysis of existing methods for predicting the dynamic manifestations of rock pressure, it has been established that most methods working based on the kinetic concept of the destruction of solids. Many scientists who adhere to this concept have found that in the process of rock destruction several characteristic stages are distinguished In these stages, the process of destruction begins with the formation of microcracks measuring in millimeters to centimeters and even meters, and may end with ruptures from dozens to thousands of meters. The process of destruction begins with the formation of microcracks measuring in millimeters to centimeters and even meters, and may end with ruptures from dozens to thousands of meters Such ruptures are characteristic of mountain tectonic impacts, man-made earthquakes, etc. The method is designed to determine the shock hazard index of a potentially dangerous focal zone, which is detected and qualified according to the results of continuous seismic-acoustic monitoring in an automated mode
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