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Information × Registration Number 0224U000663, 0123U103075 , R & D reports Title Justification of parameters for the gas transportation system in modern methods of methane extraction from coal deposits popup.stage_title Head Dudlia Kateryna Ye., Кандидат технічних наук Registration Date 10-01-2024 Organization Institute of Geotechnical Mechanics named after MS Polyakova of the National Academy of Sciences of Ukraine popup.description2 Mining and geological parameters of coal field development that affect the reliability of surface gas pipelines for the transportation of coal mine methane are determined. Some of the main parameters are: the angle of the seam; the depth of the coal seam; and the thickness of the coal seam. The scientific novelty of the work is to establish the regularity of stress changes in a surface gas pipeline as a function of the angle of occurrence of the coal seam, the depth of its development and its thickness, namely - with an increase in the angle of the coal seam, the maximum stress in the gas pipeline pipe decreases, and the safety factor of the gas pipeline pipe increases according to quadratic dependencies; - with an increase in the thickness of the coal seam, the maximum stress in the gas pipeline pipe increases, and the safety factor of the pipeline pipe decreases according to linear dependencies; - as the depth of coal seam development increases, the maximum stress in the gas pipeline pipe decreases according to a quadratic dependence, and the safety factor of the gas pipeline pipe increases according to a linear dependence. Practical value. The parameters of the gas pipeline that ensure safe transportation of the methane-air mixture under the conditions of ground displacement for the accepted conditions have been determined; the results can be used to develop methods for calculating stresses in surface gas pipelines during coalbed methane production and to improve the safety of its transportation. Product Description popup.authors Dudlia Kateryna Ye. popup.nrat_date 2024-01-10 Close