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Gas-Kinetic State and Geomechanical Processes near the Face in a Bed of Coking Coal

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Abstract

Coking coal amounts to about half of Russia’s coal reserves. An algorithm is proposed for calculating the methane release from coal. It is suitable for all grades of coking coal in underground mining. Estimates of the stress in the rock and the steps in roof collapse permit determination of the arching of the roof rock and the unloading zone of the coking coal bed at the face. The methane distribution is determined in terms of the states in which it exists at the face, including the formation of free methane.

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Funding

This research was conducted within a state program of the Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences: specifically, project FWEZ-2021-0001 on the creation of multifunctional monitoring and prediction systems for gas-dynamic phenomena, monitoring of the associated stress state, and the development of preventive methods in underground coal mining (registration number AAAA-A21-121012290020-4).

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Authors and Affiliations

  1. Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia

    M. V. Shinkevich

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  1. M. V. Shinkevich
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Correspondence to M. V. Shinkevich.

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Translated by B. Gilbert

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Shinkevich, M.V. Gas-Kinetic State and Geomechanical Processes near the Face in a Bed of Coking Coal. Coke Chem. 66, 104–108 (2023). https://doi.org/10.3103/S1068364X2370062X

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  • DOI: https://doi.org/10.3103/S1068364X2370062X

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