È. P. Fel'dman, N. A. Kalugina, T. N. Meln'Ik, “Role of unloading and filtration of gas in the development of main cracks in a coal bed”, Prikl. Mekh. Tekh. Fiz., 2017, Volume 58, Issue 1,Pages <nobr>177

This article is cited in 4 papers

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

È. P. Fel'dman^a, N. A. Kalugina^a, T. N. Meln'Ik^b

^a Institute for Physics of Mining Processes, National Academy of Sciences of Ukraine, Dnepropetrovsk, 49600, Ukraine
^b Galkin Donetsk Physicotechnical Institute, Donetsk, 83114, Ukraine

Abstract: The development of main cracks in a coal bed due to rapid unloading is analyzed using the methods of theoretical physics. A fracture criterion and a criterion for the time to fracture of a site on the edge of the bed are obtained.

Keywords: coal bed, gas-filled crack, filtration, diffusion, emission.

UDC: 622.831: 622.537.86

Received: 22.07.2015
Revised: 11.01.2016

DOI: 10.15372/PMTF20170117