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Modeling Top Coal Disintegration in Thick Seams in Longwall Top Coal Caving

  • Mineral Mining Technology
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Journal of Mining Science Aims and scope

Abstract

The geomechanical model of the powered roof support-top coal-roof rock system is developed. For investigation of disintegration processes in top coal of thick seam, numerical modeling with finite element discretization of a study domain is carried out using the authors’ original code. The computational experiment reveals stress distribution in rock mass, as well as evaluates position, shape and size on uncontrolled caving zones in top coal.

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Funding

This study was carried out in the framework of the Federal Targeted Program on Research and Development in the Priority Areas of Science and Technology in Russia in 2014–2020, Subject: Technology for the effective development of coal deposits by a robotized system with a controllable top coal discharge, contract no. 14.604.21.0173 dated September 26, 2017.

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Authors and Affiliations

  1. Institute of Coal, Federal Research Center of Cola and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, 650065, Russia

    V. I. Klishin & G. Yu. Opruk

  2. Siberain State Industrial University, Novokuznetsk, 654007, Russia

    V. N. Fryanov & L. D. Pavlova

Authors
  1. V. I. Klishin
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  2. V. N. Fryanov
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  3. L. D. Pavlova
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  4. G. Yu. Opruk
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Corresponding authors

Correspondence to V. I. Klishin or L. D. Pavlova.

Additional information

Original Russian Text © The Author(s), 2019, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2019, No. 2, pp. 79–88.

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Klishin, V.I., Fryanov, V.N., Pavlova, L.D. et al. Modeling Top Coal Disintegration in Thick Seams in Longwall Top Coal Caving. J Min Sci 55, 247–256 (2019). https://doi.org/10.1134/S1062739119025527

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  • DOI: https://doi.org/10.1134/S1062739119025527

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