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Information × Registration Number 0221U105745, 0120U103145 , R & D reports Title Additional study of physicochemical properties of layers of satellites of formation d4, which occur in the soil and roof of the formation in the mine PJSC «Management of the mine «POKROVSKE». popup.stage_title Head Mineev Serhii P., Доктор технічних наук Registration Date 26-08-2021 Organization Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine popup.description2 The object of research - physical and chemical properties of coal seams-satellites of formation d4 in the conditions of mine of PJSC «Management of the mine "Pokrovske". The purpose of the work is to determine the physicochemical properties of the layers of satellites of the d4 formation, which lie in the sole and roof of the formation in the conditions of the mine of PJSC «Management of the mine "Pokrovske". Research methods - laboratory experiments according to the developed methods, analysis of results, calculations according to standard methods. As a result of the work, the physical and mechanical characteristics of coal from three coal seams were determined, samples of which were taken in the conditions of PJSC «Management of the mine «Pokrovske»: modulus of elasticity; the limits of coal strength on uniaxial compression; the maximum destructive force at a cut; angle of internal friction. The average values of open porosity of coal on samples from each layer were obtained. The petrographic parameters of the sandstone selected in the conditions of «Management of the mine «Pokrovske» have been established. The yield of volatile substances from coal of 3 samples and the lower limit of explosiveness of coal dust depending on the yield of volatiles were determined. The calculation of the filtration permeability of coal is performed taking into account its stress-strain state in the region of the coal massif, initiated by mining operations. As a result of the work, the physical and chemical properties of coal seams were determined, which are the initial data when calculating the parameters of various technologies that ensure the safety of mining, which is of great socio-economic and environmental importance.  Product Description popup.authors popup.nrat_date 2021-08-26 Close