International Scientific Journal

Thermal Science - Online First

online first only

Effect of damage on gas seepage mechanism in coal seam based on a coupled model

Damage has a significant impact on gas migration in coal seam. In this paper, a coupled hydraulic-mechanical-damage model is established, which takes into account the coupling relationship among coal damage, gas seepage and coal deformation. The simulation results show that the damage of coal body has little effect on seepage characteristic in the initial stage, but the influence of damage on gas seepage is increasing with the increase of time. Both the distribution of gas pressure and the gas adsorption content of coal body have a significant change.
PAPER REVISED: 2018-06-21
PAPER ACCEPTED: 2018-08-15
  1. Yang, X. J., et al., Nonlinear dynamics for local fractional burgers' equation arising in fractal flow, Nonlinear Dynamics, 84 (2016), 1, pp. 3-7
  2. Xue, Y., et al., The influence of the backfilling roadway driving sequence on the rockburst risk of a coal pillar based on an energy density criterion, Sustainability, 10 (2018), 2, pp. 2609
  3. Chang, X., et al.,. Mechanical performances of coal-concrete bi-material disks under diametrical compresion, International Journal of Rock Mechanics and Mining Sciences, 104 (2018), 3, pp. 71-77
  4. Russian, A., et al., Multi-continuum approach to modelling shale gas extraction, Transport in Porous Media, 109 (2015), 1, pp. 109-130
  5. Orem, W., et al., Organic substances in produced and formation water from unconventional natural gas extraction in coal and shale, International Journal of Coal Geology, 126 (2014), 3, pp. 20-31
  6. Cao, Z., et al., Joint Bearing Mechanism of Coal Pillar and Backfilling Body in Roadway Backfilling Mining Technology, Computers, Materials & Continua, 54 (2018), 2, pp. 137-159
  7. Liu, C., et al., Gas emission quantity prediction and drainage technology of steeply inclined and extremely thick coal seams, International Journal of Mining Science and Technology, 28 (2018), 3, pp. 415-422
  8. Xue, Y., et al., An elastoplastic model for gas flow characteristics around drainage borehole considering post-peak failure and elastic compaction, Environmental Earth Sciences, 77 (2018), 19, pp. 669
  9. Wang, J., et al., Model experiment on frost-heave force of foundation pit at deepseasonal frozen regions, Journal of China University of Mining & Technology, 47 (2018), 4, pp. 815-821
  10. Estrada, J. M., Bhamidimarri, R., A review of the issues and treatment options for wastewater from shale gas extraction by hydraulic fracturing, Fuel, 182 (2016), 4, pp. 292-303
  11. Xue, Y., et al., Evaluation of the Non-Darcy Effect of Water Inrush from Karst Collapse Columns by Means of a Nonlinear Flow Model, Water, 10 (2018), 9, pp. 1234
  12. Lin, B. , Shen, C., Coal permeability-improving mechanism of multilevel slotting by water jet and application in coal mine gas extraction, Environmental Earth Sciences,73 (2015), 10, pp. 5975-5986
  13. Liu, G., et al., A fractal approach to fully-couple coal deformation and gas flow, Fuel, 240, (2019), 3, pp. 219-236
  14. Shi, S., et al., Assessment of gas and dust explosion in coal mines by means of fuzzy fault tree analysis, International Journal of Mining Science and Technology, 28 (2018), 6, pp. 991-998
  15. Zhu, J., et al., The interdependency of pore structures and coal dynamic failures. Journal of China University of Mining & Technology, 47 (2018), 1, pp. 97-103