Role of unloading and filtration of gas in the development of main cracks in coal seams

  • E. P. Feldman
  • N. A. Kalugina
  • T. N. Meln’ik
Article

Abstract

The development of main cracks in coal seams due to rapid unloading is analyzed using the methods of theoretical physics. A fracture criterion and a criterion for the time to fracture of an area at the edge of a coal seam are obtained.

Keywords

coal seam gas-filled crack filtration diffusion outburst 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • E. P. Feldman
    • 1
  • N. A. Kalugina
    • 1
  • T. N. Meln’ik
    • 2
  1. 1.Institute for Physics of Mining ProcessesNational Academy of Sciences of UkraineDnepropetrovskUkraine
  2. 2.Galkin Donetsk Physicotechnical InstituteDonetskUkraine

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