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

doi:10.1134/S0021894417010175

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

Authors: Feldman E.P.¹, Kalugina N.A.¹, Meln’ik T.N.²
Affiliations:
1. Institute for Physics of Mining Processes
2. Galkin Donetsk Physicotechnical Institute
Issue: Vol 58, No 1 (2017)
Pages: 155-164
Section: Article
URL: https://journals.rcsi.science/0021-8944/article/view/160667
DOI: https://doi.org/10.1134/S0021894417010175
ID: 160667

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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.