THE EFFECT OF MECHANICAL VIBRATIONS IN A GAS-SATURATED COAL MASSIF AS A DEFORMABLE SYSTEM
Воздействие механических колебаний на газонасыщенный угольный массив как деформируемую систему
Pavlenko M.V. Bazarov B.A. Konakbaeva A.N. Mezentseva A.V.
2022Ugol Journal Edition, LLC
Ugol
2022Issue 446 - 49 pp.
The article is devoted to the peculiarities of changes in the properties and state of a coal seam under the influence of mechanical vibrations in the form of vibration on a gas-saturated coal mass for the formation of cracks in a low-permeability gas-saturated coal mass as a deformable system. the ability of a coal mass to accumulate small deformations as a result of mechanical influences and at the same time change its properties can be successfully used for active exposure to vibration to create gas-conducting cracks in the coal mass. Similar effects occur during coal mining, while changes in gas release at the impact site are not isolated and suggest that there is a possibility of using mechanical vibrations to actively influence the coal mass, to increase its permeability, which leads to an intensive increase in methane release from the coal seam. this is confirmed by the results obtained both in laboratory conditions and as a result of industrial experiments. It is worth noting that the results obtained using each of the above methods are in good agreement.
Coal mass , Deformations , Fracturing , Gas permeability , Gas recovery , Mechanical vibrations , System , Vibration action
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National University of Science and Technology “MISIS” (NUST “MISIS”), Moscow, 119049, Russian Federation
Karaganda Industrial University, Temirtau, 101400, Kazakhstan
National University of Science and Technology “MISIS” (NUST “MISIS”)
Karaganda Industrial University
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