Conducting excavations in the rock massif and the impact of blasting on it leads to differentiation of the massif into zones of different geomechanical and gasdynamic state. Identification of patterns of formation and distribution of zones of different degrees of disintegration is of great importance to ensure the safety of mining operations and gas extraction from the coal massif. Analytical studies carried out by the author have allowed to determine the algorithm of interdependence of sizes of zones of geomechanical and gasdynamic state in the mountain massif, disturbed by mining works....