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Gas-permeable zones in coal seams and the nature and mechanism by which they form

  • Rock Mechanics
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Journal of Mining Science Aims and scope

Abstract

The mechanism by which gas-permeable zones around mine workings and boreholes form and develop is described, on the basis of in-situ observations of the change of gas pressure in coal seams and the analysis of coal shrinkage and swelling during sorptional processes. It is shown that gas motion in the coal seam may be regarded as a filtration wave with a jump in the sorbed gas at the front, coinciding with the moving boundary of the gas-permeable zone. Hooke's law relating the components of the stresses and elastic deformations is presented, taking account of shrinkage and swelling of the coal during sorptional processes in the coal seams.

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Authors
  1. S. V. Kuznetsov
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  2. V. A. Trofimov
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Additional information

Institute of Problems of Complex Development of Bowels, Russian Academy of Sciences, Moscow. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 21–27, January–February, 1999.

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Kuznetsov, S.V., Trofimov, V.A. Gas-permeable zones in coal seams and the nature and mechanism by which they form. J Min Sci 35, 19–25 (1999). https://doi.org/10.1007/BF02562441

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  • DOI: https://doi.org/10.1007/BF02562441

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