Numerical study of influence of adsorbed gas filtration and diffusion on dynamic phenomena in a coal seam

A. V. Dimaki, A. I. Dmitriev, S. Zavsek, S. G. Psakhie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The connected physical-mechanical model of gas-saturated coal seam with explicit taking into the account the processes of filtration and diffusion of the gas mixture in the pores of the solid skeleton has been proposed. The developed model as been verified on the basis of experimental data on desorption of CO2 from the sample of brown coal (lignite). An anomalous increase in strength and deformation capacity of gas-saturated coal sample during uniaxial loading in a certain range of pressure of gas in pores has been revealed. It has been shown that in this pressure range the destruction of the samples occurs with the formation of a large number of small fragments that can serve as a model of gas-dust emission into mine area.

Original languageEnglish
Title of host publication19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
PublisherEuropean Conference on Fracture, ECF
Publication statusPublished - 2012
Event19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 - Kazan, Russian Federation
Duration: 26 Aug 201231 Aug 2012

Other

Other19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
CountryRussian Federation
CityKazan
Period26.8.1231.8.12

Fingerprint

Coal
Lignite
Gases
Gas mixtures
Dust
Desorption

Keywords

  • Coal beds
  • Fracture
  • Solid-gas composition
  • Strength

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality

Cite this

Dimaki, A. V., Dmitriev, A. I., Zavsek, S., & Psakhie, S. G. (2012). Numerical study of influence of adsorbed gas filtration and diffusion on dynamic phenomena in a coal seam. In 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 European Conference on Fracture, ECF.

Numerical study of influence of adsorbed gas filtration and diffusion on dynamic phenomena in a coal seam. / Dimaki, A. V.; Dmitriev, A. I.; Zavsek, S.; Psakhie, S. G.

19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012. European Conference on Fracture, ECF, 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dimaki, AV, Dmitriev, AI, Zavsek, S & Psakhie, SG 2012, Numerical study of influence of adsorbed gas filtration and diffusion on dynamic phenomena in a coal seam. in 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012. European Conference on Fracture, ECF, 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012, Kazan, Russian Federation, 26.8.12.
Dimaki AV, Dmitriev AI, Zavsek S, Psakhie SG. Numerical study of influence of adsorbed gas filtration and diffusion on dynamic phenomena in a coal seam. In 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012. European Conference on Fracture, ECF. 2012
Dimaki, A. V. ; Dmitriev, A. I. ; Zavsek, S. ; Psakhie, S. G. / Numerical study of influence of adsorbed gas filtration and diffusion on dynamic phenomena in a coal seam. 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012. European Conference on Fracture, ECF, 2012.
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