Hydrodynamic impact as a way of controlling the state of the coal-gas system: analysis and data processing

Abstract

Abstract The research results on hydrodynamic impact during the outburst-hazardous coal seams opening at the Donbas Central District mines are considered. Emphasis is placed on the technological processes complexity related to coal mining and the importance of systematic monitoring of the stress-strain state of rock massif. It is noted that the research and optimization of the hydrodynamic impact process parameters and the coal-gas system state require the use of statistical and probabilistic methods, in particular descriptive statistics. An analysis of the hydrodynamic impact process parameters on the stress-strain state of rock massif in the conditions of steeply sloping seams was carried out using the example of 50 openings. A data array with different characteristics and parameters distribution was obtained. Methods of data distribution normality checking and their use in normality hypothesis verifying for process control are considered. Information on research methods and analysis of parameters related to hydrodynamic impact on the rock massif is summarized. The results of studies of hydrodynamic impact parameters and control of the gasdynamic state of outburst-hazardous coal seams during their opening are considered. The results will be used in further studies of the controlling process of stress-strain state of outburst-hazardous coal seams by hydrodynamic impact.