THERMAL SCIENCE

International Scientific Journal

EVOLUTION OF OVERBURDEN FRACTURE AND WATER SEEPAGE IN COAL SEAM GROUP MINING AN EXAMPLE IN LINGXIN COAL MINE

ABSTRACT
Taking Lingxin Coal Mine as the research object, the combination of physical experiment and numerical simulation analysis was used to study the mining failure of overlying strata and the development of surrounding rock cracks in goaf. The results show that when the underground coal seam mining is not sufficient, the overburden separation is developed, the connected pore area of the overburden failure accounts for about 20% of the total mining area. When the underground coal seam is fully mined, the overburden failure is severe, the overburden failure cracks are interconnected, and the connected pore area increases significantly.
KEYWORDS
PAPER SUBMITTED: 2022-08-21
PAPER REVISED: 2022-11-15
PAPER ACCEPTED: 2022-11-22
PUBLISHED ONLINE: 2023-03-04
DOI REFERENCE: https://doi.org/10.2298/TSCI2301671G
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 1, PAGES [671 - 677]
REFERENCES
  1. Bian, W., et al., Design of Sodium Hypochlorite Disinfection System in Huyan Water Treatment Plant, Technology of Water Treatment, 47 (2021), Aug., pp. 1-7
  2. Lei, S., et al., Research Progress on the Environment Impacts from Underground Coal Mining in Arid Western Area of China, Acta Ecologica Sinica, 34 (2014), Jan., pp. 2837-2843
  3. Chen, S., et al., Technology of Underground Reservoir Construction and Water Resource Utilization in Daliuta Coal Mine, Coal Science and Technology, 44 (2016), Aug., pp. 21-28
  4. Gu, D., et al., Technical Progress of Water Resource Protection and Utilization by Coal Mining in China, Coal Science and Technology, 44 (2016), Jan., pp. 1-7
  5. Guo, Q., et al., Treatment of High Salinity Mine Water and Storage of Concentrated Brine, Coal Engineering, 52 (2022), Dec., pp. 16-19
  6. Qian, M., et al., Green Mining of Coal Resources Harmonizing with Environment, Journal of China Coal Society, 32 (2007), Jan., pp. 1-7
  7. Gu, D., Theory Framework and Technological System of Coal Mine Underground Reservoir, Journal of China Coal Society, 40 (2015), Feb., pp, 239-246
  8. Kang, Y., et al., The Damage Law of the Overlying Strata of the Repeated Mining in Combined Mining, Coal Science and Technology, 29 (2001), Jan., pp. 22-24
  9. Li, H., et al., Experimental Study on Characteristics of Groundwater Fracture in Coal Mine Overlying Rock, Coal Science and Technology, (2022), May., pp. 1-10
  10. Yang, X. J., An Insight on the Fractal Power Law Flow: From a Hausdorff Vector Calculus Perspective, Fractals, 30 (2022), 3, pp. 2250054-929
  11. Yang, X. J., et al., A New Insight to the Scaling-law Fluid Associated with the Mandelbrot Scaling Law, Thermal Science, 25 (2021), 6B, pp.4561-4568

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence