MINING AND GEOLOGICAL FEATURES OF FORECASTING DYNAMIC PHENOMENA IN COAL MINES

Abstract

The issues of forecasting and preventing dynamic phenomena in coal mines, despite decades of research, remain insufficiently studied. The nature of dynamic phenomena is far from being known, and as the depth of mining of coal seams increases, the phenomena become more and more formidable and, as a rule, unpredictable.Most of the dynamic phenomena are related to the stress state of the massif and the peculiarity of its gas saturation, which is partly explained by the state of sedimentary rocks. In sedimentary rocks or crystalline fractured, the number of parameters characterizing the stress state of rocks at depth increases.Studying the dynamic processes of different intensity in the coal rock massifs of the Donets Basin, it was found that the main factors that provoke them should include anomalously high formation pressures, stress state and gas content of the massif.