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Information × Registration Number 0222U005077, 0120U100290 , R & D reports Title Providing of scientific and technical assistance in carrying out hydrodynamic action before the coal seams drilling with drift to prevent sudden coal and gas emissions popup.stage_title Head Sofiyskiy Kostiantyn K, Доктор технічних наук Registration Date 19-12-2022 Organization Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine popup.description2  The object of research is the processes occurring in a stressed gas-saturated coal-rock mass under hydrodynamic impact (GDI) on it through a well drilled from the bottom of an intermediate crosscut through soil rocks onto a coal seam. The purpose of the work is to adjust the parameters of the GDI method through one underground well to coal seams prone to GDP before they are opened in the conditions of the "Tsentralna Mine" of the SE "Toretskvugillya". Research methods - analytical, mine experimental research. An industrial test of the GDI method was carried out on m2-"Thin" and m3-"Thick" coal seams, prone to GDP, before they were opened through one technological well in the conditions of the Tsentralnaya Mine, SE "Toretskvugillya". It has been established that when performing GDI through one well with a diameter of 100 mm, drilled through a rock plug of soil or roof with a thickness of more than 5 m along the normal from the face of an opening working with a section in penetration up to 12.3 m2 into a coal seam, in the amount of 18-45 cycles and extraction from the processing zone, at least 2% of coal brings the coal seam into a non-outburst hazardous state in a section with a radius of 4.1-12.3 m. Opening of coal seams m3-"Thick" with intermediate crosscuts No. 27 and m2-"Thin" with intermediate crosscuts No. 27 and No. 28 in section No. 41-1146 m, as well as m3-"Thick" with crosscuts No. 12 and No. 13 and m2-"Thin » by industrial crosscut No. 13 at section No. 42-1146 m were performed without signs of manifestation of gas-dynamic phenomena. The performed studies make it possible to adjust the GDI parameters for a coal seam, which will reduce the cost of processing the seam, improve the conditions and safety of miners. GAS DYNAMIC PHENOMENON, HYDRODYNAMIC IMPACT, SIGN-ALTERNATIVE LOAD, CROSSBOW, AVERAGE DAILY METHANE CONCENTRATION, TECHNOLOGICAL WELL. Product Description popup.authors Ahaiev Ruslan A. Vlasenko Vasyl V. Dudlia Kateryna Ye. Zberovskyi Vasyl V. Petukh Oleksandr P. popup.nrat_date 2022-12-19 Close