THERMAL SCIENCE

International Scientific Journal

Nan Zhang

,

Jie Yang

,

Xi-Lin Shi

,

Yin-Ping Li

,

Jian Chen

,

Wei Liu

GROUND SUBSIDENCE MECHANISM ANALYSIS OF LONGGUI SALT ROCK MINING AREA: CASE STUDY

ABSTRACT
The water-soluble mining is often accompanied by ground subsidence, which could result in the severity of ground subsidence disasters. The roof of the salt-bearing strata in the Longgui salt rock mining area is close to the third aquifer, which is mostly composed of muddy conglomerate and other porous rocks with large porosity and permeability. The water-soluble mining for many years has caused serious ground subsidence in the mining area, and there is a tendency to accelerate subsidence. Taking Longgui salt rock mine as a case, the mining subsidence mechanism was analyzed and discussed through the water dissolution simulation test. This study is of great significance to the prevention and control of ground subsidence disasters in Longgui salt rock mine, and also has certain reference value for other similar mining areas.
KEYWORDS
solution mining, ground subsidence, salt rock, water solution simulation, pillar dissolution
PAPER SUBMITTED: 2020-03-06
PAPER REVISED: 2020-05-20
PAPER ACCEPTED: 2020-05-29
PUBLISHED ONLINE: 2020-11-27
DOI REFERENCE: https://doi.org/10.2298/TSCI2006869Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 6, PAGES [3869 - 3875]
REFERENCES
  1. Zhang, N., et al., Tightness Analysis of Underground Natural Gas and Oil Storage Caverns with Limit Pillar Widths in Bedded Rock Salt, IEEE ACCESS, 8 (2020), Jan., pp. 12130-12145
  2. Zhang, N., et al., Microscopic Pore Structure of Surrounding Rock for Underground Strategic Petroleum Reserve (SPR) Caverns in Bedded Rock Salt, Energies, 13 (2020), 7, pp. 1565
  3. Zhang, N., et al., Stability and Availability Evaluation of Underground Strategic Petroleum Reserve (SPR) Caverns in Bedded Rock Salt of Jintan, China, Energy, 134 (2017), Sept., pp. 504-514
  4. Xue, Y., et al., Productivity Analysis of Fractured Wells in Reservoir of Hydrogen and Carbon Based on Dual-Porosity Medium Model, International Journal of Hydrogen Energy, 45 (2020), 39, pp. 20240-20249
  5. Zhang, Y., et al., The Application of Short-wall Block Backfill Mining to Preserve Surface Water Resources in Northwest China, J. Clean. Prod., 261 (2020), 121232
  6. Xiao, S. D., Hu, Y. B., Mechanism of Surface Subsidence of the Thin and Multi-layer Stratiform Rock Salt Deposit in Hydraulic Exploiting Area, Yunying Basin (in Chinese), Geological Science and Technology Information, 02 (2003), pp. 92-95
  7. Liu, W., et al., A New Method of Surface Subsidence Prediction for Natural Gas Storage Cavern in Bedded Rock Salts, Environmental Earth Sciences, 75 (2016), 9, 800
  8. Shi, X. L., et al., Influences of Filling Abandoned Salt Caverns with Alkali Wastes on Surface Subsidence, Environmental earth sciences, 73 (2015), 11, pp. 6939-6950
  9. Li, J. L., et al., Modeling the Construction of Energy Storage Salt Caverns in Bedded Salt, Applied Energy, 255 (2019), 113866
  10. Liu, J., et al., Numerical Evaluation on Multiphase Flow and Heat Transfer during Thermal Stimulation Enhanced Shale Gas Recovery, Applied Thermal Engineering, 178 (2020), Sept., pp. 115554
  11. Li, J. L., et al., Modeling the Mining of Energy Storage Salt Caverns Using a Structural Dynamic Mesh, Energy, 193 (2020), 116730
  12. Fan, J. Y., et al., Time Interval Effect in Triaxial Discontinuous Cyclic Compression Tests and Simulations for the Residual Stress in Rock Salt, Rock Mechanics and Rock Engineering, 53 (2020), May, pp. 4061-4076
  13. Peng, H. H., et al., Computed Tomography Analysis on Cyclic Fatigue and Damage Properties of Rock Salt under Gas Pressure, International Journal of Fatigue, 134 (2020), 105523
  14. Chen, S. W., et al., Experimental Investigation on Microstructure and Permeability of Thermally Treated Beishan Granite, Journal of Testing and Evaluation, 49 (2019), June, pp. 1-15
  15. Shan, P. F., et al., An Associated Evaluation Methodology of Initial Stress Level of Coal-rock Masses in Steeply Inclined Coal Seams, Urumchi Coal Field, China, Engineering Computations, 37 (2020), 6, pp. 2177-2192
  16. Liu, W., et al., Physical Simulation of Construction and Control of Two Butted-Well Horizontal Cavern Energy Storage using Large Molded Rock Salt Specimens, Energy, 185 (2019), Oct., pp. 682-694
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Ground subsidence mechanism analysis of Longgui salt rock mining area: Case study

© 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