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Impact of ground surface subsidence due to underground mining on surface infrastructure: the case of the Anomaly No. 12 Sechahun, Iran

  • Hadi Parmar
  • Alireza Yarahmadi Bafghi
  • Mehdi NajafiEmail author
Original Article

Abstract

Ground surface subsidence as the result of the application of caving methods (block caving, sublevel caving and longwall mining) may leave significant impact on surface infrastructures which are located in subsidence influence zone. The Anomaly No. 12 Sechahun located in 32 km from Bafq in Yazd province, Iran was planned to be extracted by sublevel caving method. Evaluating the amount of surface subsidence in this mine was very important because different surface infrastructures (railway, road, natural gas transmission pipeline and water pipeline) and an open pit mine (Anomaly No. 10) are located within the mining area. The main purpose of this research was to evaluate the effect of surface subsidence due to underground iron mine Anomaly No. 12 Sechahun on surface infrastructures through numerical and empirical methods. For this purpose, first, the subsidence parameters such as caving angle, subsidence angle and the influence zone were estimated by empirical methods. Then numerical modeling was applied. To estimate rock mass properties, joint mapping was taken from the site at Anomaly No. 10 and a set of numerical models were employed through a Discrete Fracture Network in 3DEC software to determine representative elemental volume. The FLAC3D software was used to simulate the ground surface subsidence due to sublevel caving method. Then, the longitudinal and transverse profiles of subsidence and the influence zone were studied. The results show that surface infrastructures which are located in subsidence influence zone should be moved to 2–3 km from the orebody deposit center. However, the results of this study still must be validated by engineering monitoring data.

Keywords

Subsidence Surface infrastructure FLAC3D software Sublevel caving 

Notes

References

  1. Bell FG, Donnelly LJ (2014) Mining and its impact on the environment. CRC Press, Boca RatonCrossRefGoogle Scholar
  2. Bonyadi Z, Davidson GJ, Mehrabi B, Meffre S, Ghazban F (2011) Significance of apatite REE depletion and monazite inclusions in the brecciated Se–Chahun iron oxide–apatite deposit, Bafq district, Iran: insights from paragenesis and geochemistry. Chem Geol 281(3–4):253–269CrossRefGoogle Scholar
  3. Bozeman MT (2002) Underground hard-rock mining: subsidence and hydrologic environmental impacts. Center for Science in Public ParticipationGoogle Scholar
  4. Butcher R, Jenkins PA (2005) Subsidence effects associated with block and sublevel caving of massive orebodies. Australian Centre for Geomechanics Newsletter, vol 25Google Scholar
  5. Cao S, Song W, Deng D, Lei Y, Lan J (2016) Numerical simulation of land subsidence and verification of its character for an iron mine using sublevel caving. Int J Min Sci Technol 26(2):327–332CrossRefGoogle Scholar
  6. Chen D, Song W, Cao S (2016) Numerical simulation of land subsidence and its field monitoring using caving method for an iron mine. Electron J Geotech Eng 21:2215–2230Google Scholar
  7. Clark I (2006) Simulation of rock mass strength using ubiquitous joints. Numerical modeling in geomechanics—2006. In: Hart MR, Verona P (eds) Proceedings 4th international FLAC symposium, Paper No. 08–07, Minneapolis, ItascaGoogle Scholar
  8. Figueroa-Miranda S, Vargas JT, Ramos-Leal JA, Hernández-Madrigal VM, Villaseñor-Reyes CI (2018) Land subsidence by groundwater over-exploitation from aquifers in tectonic valleys of Central Mexico: a review. Eng GeolGoogle Scholar
  9. Flores G, Karzulovic A (2004) Geotechnical guidelines subsidence. Prepared for International Caving Study, Stage II. JKMRC, BrisbaneGoogle Scholar
  10. GilbrideJ, Free KS, Kehrman R (2005) Modeling block cave subsidence at the Molycorp. Inc, Questa Mine, Alaska Rocks, the 40th US symposium on rock mechanics (USRMS), June 25–29Google Scholar
  11. Helm PR, Davie CT, Glendinning S (2013) Numerical modelling of shallow abandoned mine working subsidence affecting transport infrastructure. Eng Geol 154:6–19CrossRefGoogle Scholar
  12. IMPASCO (2009) Detailed exploration report of Anomaly No. 12 SechahunGoogle Scholar
  13. Kasmaee S, Torab FM (2014) Risk reduction in Sechahun iron ore deposit by geological boundary modification using multiple indicator Kriging. J Cent South Univ 21(5):2011–2017CrossRefGoogle Scholar
  14. Kendorski FS (1978) Cavability of ore deposits. Min Eng 30:628–631Google Scholar
  15. Kratzsch H (2012) Mining subsidence engineering. Springer, BerlinGoogle Scholar
  16. Laubscher D (2000) Block caving manual. Report for the international caving study. JKMRC and Itasca Consulting Group, BrisbaneGoogle Scholar
  17. Lee S, Park I (2013) Application of decision tree model for the ground subsidence hazard mapping near abandoned underground coal mines. J Environ Manag 127:166–176CrossRefGoogle Scholar
  18. Peng SS, Ma WM, Zhong WL (1992) Surface subsidence engineering. Society for Mining, Metallurgy, and Exploration, LittletonGoogle Scholar
  19. Quanyuan W, Jiewu P, Shanzhong Q, Yiping L, Congcong H, Tingxiang L, Limei H (2009) Impacts of coal mining subsidence on the surface landscape in Longkou city, Shandong Province of China. Environ Earth Sci 59(4):783CrossRefGoogle Scholar
  20. Sainsbury B, Pierce M, Mas Ivars D (2008) Analysis of caving behaviour using a synthetic rock mass—ubiquitous joint rock mass modelling technique. South Hemisphere Int Rock Mech Perth 1:343–352Google Scholar
  21. Sengupta M (1993) Environmental impacts of mining monitoring, restoration, and control. CRC Press, Boca RatonGoogle Scholar
  22. Sharrock G, Vakili A, Duplancic P, Hastings N (2011) Numerical analysis of subsidence for Perseverance Deeps Block Cave in continuum and distinct element numerical modelling in geomechanics, 2011. In: Sainsbury, Hart, Detournay, Nelson (eds) Paper 06-03, Itasca International Inc, Minneapolis (ISBN 978-0-9767577-2-6) Google Scholar
  23. Simeoni U, Tessari U, Corbau C, Tosatto O, Polo P, Teatini P (2017) Impact of land subsidence due to residual gas production on surficial infrastructures: the Dosso degli Angeli field study (Ravenna, Northern Italy). Eng Geol 229:1–12CrossRefGoogle Scholar
  24. van As A, Davison J, Moss A (2003) Subsidence definitions for block caving mines. Rio Tinto Technical report, 2003, p 59Google Scholar
  25. Vyazmensky A (2008) Numerical modelling of surface subsidence associated with block cave mining using a finite element/discrete element approach. Doctoral dissertation, Simon Fraser UniversityGoogle Scholar
  26. Woo Kyu-Seok et al (2013) Empirical investigation and characterization of surface subsidence related to block cave mining. Int J Rock Mech Min Sci 61(31–42):2013Google Scholar
  27. Younger PL, Wolkersdorfer C (2004) Mining impacts on the fresh water environment: technical and managerial guidelines for catchment scale management. Mine Water Environ 23:s2–s80CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Mining and Metallurgical EngineeringYazd UniversityYazdIran

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