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DYNAMIC FRACTURE OF GAS-BEARING COAL SEAM DURING ZONAL DISINTEGRATION

  • ROCK FAILURE
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Journal of Mining Science Aims and scope

Abstract

The study focuses on the theory of zonal disintegration in gas-bearing coal seams and on gas-dynamic phenomena in underground structures. The concept of unstable geomechanical behavior of coal seams is conditioned by instability of deformation during micro-cracking and macro-cracking. In the zone of disintegration in a gas-bearing coal seam, occluded methane releases from coal substance. As a result of increasing pressure of free methane, a zone of damaged coal and gas appears deep in the coal seam and can induce such gas-dynamic events as blower, sloughing and outbursting. The obtained values and relations of geomechanical and gas-dynamic parameters agree with the actual practice data.

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Authors and Affiliations

  1. Academician Melnikov Research Institute for Comprehensive Exploitation of Mineral Resources—IPKON, Russian Academy of Sciences, 111020, Moscow, Russian Federation

    V. N. Odintsev

  2. Far Eastern Federal University, 690600, Vladivostok, Russian Federation

    V. V. Makarov

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  1. V. N. Odintsev
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  2. V. V. Makarov
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Correspondence to V. N. Odintsev or V. V. Makarov.

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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2020, No. 6, pp. 61–77. https://doi.org/10.15372/FTPRPI20200606.

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Odintsev, V.N., Makarov, V.V. DYNAMIC FRACTURE OF GAS-BEARING COAL SEAM DURING ZONAL DISINTEGRATION. J Min Sci 56, 932–946 (2020). https://doi.org/10.1134/S106273912006006X

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