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Registration Number

0221U102913, 0116U003004 , R & D reports

Title

Mass, heat transfer and physics of preoutburst phenomena in gas-saturated fractured-porous layered coal-rock mass

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Head

Molchanov Oleksandr М., Доктор технічних наук

Registration Date

11-02-2021

Organization

Institute of Physics of Mining Processes of the National Academy of Sciences of Ukraine

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Research Object is the phase-structural transformations process of coal massif containing gas, water filtration into mine workings through the massif, the stress field dynamics in the coal seam during its development, the cracks germination through the coal seam, methane filtration into cracks and cracks. A special object of research was electric and thermal fields in mesostructured materials with the inhomogeneous structures taking into account heat transfer through contact surfaces in layered arrays. Methane peculiarities and water mass transfer through a fractured coal rock mass and the influence of mass transfer rate on the preparation and coal solution, rock and gas emissions were studied. The purpose of the work is to establish the regularities of fractured-porous structure dynamics, changes in the gas pressure near the workings, heat transfer in gas-saturated layered rocks; determining the number role of physical and technological characteristics (reference pressure, filtration permeability, diffusion, elasticity modulus and adhesion of the material, face geometry and penetration rate) in the preparation processes and coal solution, rock and gas emissions. Research methods - derivation and analysis of kinetic system equations for fracture (main cracks size) and gas pressure both in the main crack cavity and in an array around the crack, experimental methods (NMR, impedance spectroscopy of coal/rock samples at low frequencies, secondary and secondary -spectroscopy, especially for hydrogen, magnetic resonance imaging), methods of computer modeling of mining processes. A serious known analytical correction, experimental and field destruction processes studies, and rock destruction in connection with changes in stress, gas pressure, temperature, and moisture content in coal massifs was carried out. As a result, it was possible to develop new formulaic criteria for emission and fire hazards of the gas-saturated massif, mainly at great depths.

Product Description

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Ilyashov Mihail
Inkin Aleksandr
Bilyk Olena V.
Balalaiev Oleksandr
Baranovskyi Volodymyr
Burchak Oleksandr
Vinnik Olena
Vasilkovskiy Vsevolod
Venherov Ihor
Vynohradov Yurii
Hrinov Volodymyr
Deriglazova Olena
Dovbnich Mykhailo
Zacharova Ludmila
Kirilov Andrii
Kaluhina Nadiia
Kamchatnyi Oleksii Anatoliiovych
Kosenko Andrii
Kusen Oleksiy B.
Lazebnyk Oleksandr
Minieiev Serhii
Mazur Olga
Molodetskyy Andriy
Molchanov Oleksandr
Nazimko Victor
Pichka Tetiana
Sergienko Alexandr
Stefanovych Leonid
Tynyna Sergii
Troitskyi Harri
Feldman Eduard
Khomenko Oleh
Khorolskyi Andrii
Chesnokova Oksana
Chobotko Ihor

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2021-02-11