Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
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A Case Study on Predicting and Analyzing Inflow Sources of Underground Water in a Limestone Mine

석회석 광산 갱내수 유입원 예측분석 사례연구

  • Minkyu Lee (R&D Team 2, Korea Mine Rehabilitation and Mineral Resources Corp.) ;
  • Sunghyun Park (R&D Team 2, Korea Mine Rehabilitation and Mineral Resources Corp.) ;
  • Hwicheol Ko (R&D Team 2, Korea Mine Rehabilitation and Mineral Resources Corp.) ;
  • Yongsik Jeong (R&D Team 2, Korea Mine Rehabilitation and Mineral Resources Corp.) ;
  • Seon-hee Heo (R&D Team 2, Korea Mine Rehabilitation and Mineral Resources Corp.)
  • 이민규 (한국광해광업공단 기술연구원 기술개발2팀) ;
  • 박승현 (한국광해광업공단 기술연구원 기술개발2팀) ;
  • 고휘철 (한국광해광업공단 기술연구원 기술개발2팀) ;
  • 정용식 (한국광해광업공단 기술연구원 기술개발2팀) ;
  • 허선희 (한국광해광업공단 기술연구원 기술개발2팀)
  • Received : 2023.10.14
  • Accepted : 2023.10.26
  • Published : 2023.10.31
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Abstract

The changes in groundwater flow due to mining development act as a contributing factor to major issues such as ground subsidence, strength reduction and collapse. For the sustainable mining development, measures for dealing with fluctuations in seasonal underground water inflow, power losses, pump damage, and unexpected increases in inflow must be put in place. In this study, the aim is to identify the causes of underground seepage through the examination of hydrological connectivity between the study area and nearby limestone mine. A tracer tes for assessing subsurface connectivity has been planned. A variety of tracers, such as dyes and ions, were applied in lab test to select the optimal tracer material, and a hydrological model of the study area was implemented through field test. Finally, the hydrological connectivity between the external stream and underground water in the mine was analyzed.

광산개발에 따른 지하수 유동의 변화는 지반의 소성 변화 및 강도 저하, 붕락과 같은 주요 문제의 발생 원인으로 작용한다. 지속적인 채광 작업이 유지되기 위해서는 계절적인 갱내수 유입량의 변화와 단전이나 펌프의 파손 및 돌발적인 유입량의 증대에 대처할 수 있도록 갱내수 유입에 대한 대책을 마련해야 한다. 본 연구는 연구 대상지와 인근에 있는 석회석 광산과의 수리적 연결성 확인을 통한 갱내 누수의 원인 규명을 목적으로 지하 매질의 연결성 확인을 위한 추적자 시험을 수행하였다. 염료계, 이온계 등 다양한 추적자를 적용한 실내실험을 통해 추적자 물질을 선정하였고, 현장 시험을 통해 대상지역의 수리지질 모델을 구현하였다. 이를 통해 광산 외부 계곡과 갱내수에 대한 수리적 연결성과 갱내 누수의 원인을 규명하였다.

Keywords

References

  1. Aldous, P.J. and Smart, P.L., 1987, Tracing Ground-Water Movement in Abandoned Coal Mined Aquifers Using Fluorescent Dyes, Ground Water, 26(2), 172-178. https://doi.org/10.1111/j.1745-6584.1988.tb00380.x
  2. Bridgwood, E.W., Singh R.N., and Atkins, A.S., 1983, Selection and optimization of mine pumping systems, International Journal of Mine Water, 2, 1-19. https://doi.org/10.1007/BF02504559
  3. Canty, G.A. and Everett, J.W., 1999, Using tracers to understand the hydrology of an abandoned underground coal mine, In: Proceedings of the Annual National Meeting, American Society for Surface Mining and Reclamation, Princeton 15, 62-72.
  4. Hawkins, J.W. and Aljoe, W.W., 1992, Pseudokarst groundwater hydrologic characteristics of a mine spoil aquifer, Mine Water and the Environment, 11(2), 37-52. https://doi.org/10.1007/BF02919585
  5. Je-Gal, G., 2017, A study on identification of groundwater pollution release history using RT3D, Department of Geophysics Graduateschool, Kangwon National University.
  6. Kim, S.J, Park, K,W., Yoo, D.R., and Cheon J.W., 1993, 현장수리시험 지침서, Seoul National University.
  7. Korea Resources Corporation, 2018, OO(석회석) 광산 시추결과보고서.
  8. Lee, K.G, 1993, 지하수 모델링 개요, The Journal of Engineering Geology, 1993, 247-315. https://doi.org/10.1016/0013-7952(93)90013-3
  9. Luo, B., Sun, Y., Xu, Z., Chen, G., Zhang, L., Lu, W., Zhao, X., and Yuan, H., 2021, Damage Characteristics and Mechanism of the 2017 Groundwater Inrush Accident that Occurred at Dongyu Coalmine in Taiyuan, Shanxi, China, Water, 13(3), 368.
  10. Mather, J.D., Gray, D.A., and Jenkins, D.G., 1969, The use of tracers to investigate the relationship between mining subsidence and groundwater occurrence at Aberfan, South Wales, Journal of Hydrology, 9(2), 136-154. https://doi.org/10.1016/0022-1694(69)90073-0
  11. Merten, D., Kothe, E., and Buchel, G., 2004, Studies on Microbial Heavy Metal Retention from Uranium Mine Drainage Water with Special Emphasis on Rare Earth Elements, Mine Water Environment, 23(1), 34-43 https://doi.org/10.1007/s10230-004-0034-2
  12. Mulenga, S.C., Fernandez-Rubio, R., Leon, A., and Baquero, J.C., 1992, Estimation of quantitative water inflow from different sources in Konkola Mine, Zambia, Mine Water and the Environment, 11(4), 1-22. https://doi.org/10.1007/BF02918444
  13. Nunes, J.F., Richards, D.G., and Gama, H.A., 1990, Mine Water and Environmental Protection - The Somincor Case, International Journal of Mine Water, 9(1-4), 237-253. https://doi.org/10.1007/BF02503695
  14. Parry, W.T., Forster, C.B., Solomon, D.K., and James, L.P., 2000, Ownership of mine-tunnel discharge, Ground water, 38(4), 487-496. https://doi.org/10.1111/j.1745-6584.2000.tb00240.x
  15. Parsons, A.S. and Hunter, M.D., 1972, Investigation into the movemnet of groundwater from Bryn Pit above Ebbw Vale, Monmoutyhshire, Water Pollution and Control, 71, 568-572.
  16. Seo, I.W., Jeon, T.M., and Baek K.O., 2005, Development of Empirical Equation of Transverse Dispersion Coefficient for Analysis of 2-D Mixing in Natural Streams, KSCE Journal of Civil Engineering B, 25(4B), 247-255.
  17. Wang, L. and H. Liu, 2003, An efficient method for identifying and filling surface depressions in digital elevation models for hydrologic analysis and modelling, International Journal of Geographical Information Science, 20(2), 193-213. https://doi.org/10.1080/13658810500433453
  18. Wolkersdorfer, C. and Hasche, A., 2001, Tracer Test in the abandoned Fluorspar Mine Strassberg/Harz Mountains, Germany, 57-67.
  19. Wolkersdorfer, C. and Hasche, A., 2004, Tracer investigations in flooded mines - the Strassberg/Harzmultitracer test, Conference Papers 35.
  20. Wolkersdorfer, C., 2001, Tracer Tests in Flooded Underground Mines, New Approches Characterizing Groundwater Flow 1, 229-233.
  21. Wolkersdorfer, C., 2002, Mine water tracing, Geological Society, London, Special Publications, 198, 47-61. https://doi.org/10.1144/GSL.SP.2002.198.01.03
  22. Worrall, F. and Pearson, D.G., 2001, Water-rock interaction in an acidic mine discharge as indicated by rare earth element patterns00, 65(18), 3027-3040. https://doi.org/10.1016/S0016-7037(01)00662-7
  23. Zhou, J., Sun, J., and Zhang, F., 1993, Origin of Mine Water by Using Environmental Isotope Techniques in Water-Logged Coal Mines, Pingdingshan, China, Mine Water Environment, 12(1-4), 63-69. https://doi.org/10.1007/BF02914800