Abstract
The fixed-loop transient electromagnetic method (TEM) is used to detect the distribution of goafs in a proposed thermal power plant in the northern part of Shaanxi Province, China. A basic geoelectric model of the goaf was established using borehole data, a pore-skeletal model, and a parallel resistance model. The Arjuna module of the Maxwell software was used to perform 2.5-dimensional forward modeling in order to make the model more realistic, and then the conventional software IX1D was used to perform one-dimensional inversion of the forward results. The model results show that the low-resistivity anomaly composed of the water-filled goaf and the fissures in its roof and floor forms an obvious anomalous response on the resistivity contour section. This abnormal feature can be used as the basis for the interpretation of the goaf. When there are no cracks in the roof or floor and only water-filled goafs, it is difficult to identify low-resistivity anomalies. The processed data collected on site show that the fixed-loop TEM has a clear image of the shallow strata geoelectric structure. The coal-bearing seam is the stable and continuous high-resistivity target layer. According to the results of the fixed-loop TEM, the range of the goaf, the range of the coal-bearing strata with the pores filled by argillaceous materials, and the range of the coal-free strata with the pores filled by calcareous materials are respectively delineated. The TEM results agreed well with the available borehole data. The TEM detection results are reliable and replace the need for extensive drilling.
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Abu-Hassanein, Z. S., Benson, C. H., & Blotz, L. R. (1996). Electrical resistivity of compacted clay. Journal of Geotechnical Engineering, 122(5), 397–406.
Anderson, W. L. (1989). A hybrid fast Hankel transform algorithm for electromagnetic modeling. Geophysics, 54(2), 263–266.
Bai, L. Y., Liang, Y. B., Song, Y. B., He, Q. Z., & Guo, W. Y. (2019). Study on failure law and failure depth of floor in deep mining. Geotechnical and Geological Engineering, 37(6), 4933–4946.
Bohlen, K., & Revil, A. (2010). Locating abandoned coal mines to assess subsidence risk using self-potential and DC resistivity. Weld County, Colorado. SEG technical program expanded abstracts, 3779–3783.
Bridge, C. F., Bizzell, K. R., & Ramachandran, K. (2015). Mapping acid mine drainage at an abandoned mine site in Ottawa country, Oklahoma, using 3D electrical resistivity tomography. In Symposium on the application of geophysics to engineering and environmental problems. Society of Exploration Geophysicists and Environment and Engineering Geophysical Society, 287–291.
Chen, X. B., Zhao, G. Z., Tang, J., Zhan, Y., & Wang, J. J. (2005). An adaptive regularized inversion algorithm for magnetotelluric data. Chinese Journal of Geophysics, 48(4), 937–946. ((in Chinese)).
Constable, S. C., Parker, R. L., & Constable, C. G. (1987). Occam’s inversion: A practical algorithm for generating smooth models from electromagnetic sounding data. Geophysics, 52(3), 289–300.
deGroot-Hedlin, C., & Constable, S. (1990). Occam’s inversion to generate smooth two dimensional models from magnetotelluric data. Geophysics, 55(12), 1613–1624.
Di, Q. Y., & Wang, M. Y. (2010). Determining areas of leakage in the Da Ye Dam using multi-electrode resistivity. Bulletin of Engineering Geology and the Environment, 69(1), 105–109.
Everett, M. E. (2013). Near-surface applied geophysics. Cambridge: Cambridge University Press.
Gochioco, L. M., Miller, T., & Ruev, F. (2008). High-resolution 2D surface seismic reflection survey to detect abandoned old coal mine works to improve mine safety. The Leading Edge, 27(1), 80–86.
Hanna, K., Pfeiffer, J. (2007). Geophysical technologies to image old mine works. In Symposium on the application of geophysics to engineering and environmental problems, 1527–1537.
Hustrulid, W. A., & Bullock, R. L. (2001). Underground mining methods: Engineering fundamentals and international case studies. Society for Mining Metallurgy and Exploration, 20, 20.
Hutchinson, P., & Krivos, H. (2014). Electrical and gravity mapping of a sink hole in State College, PA. In Symposium on the application of geophysics to engineering and environmental problems, 492–497.
Inman, J. R. (1975). Resistivity inversion with ridge regression. Geophysics, 40(5), 798–817.
Irons, B. M. (1970). A frontal solution program for finite element analysis. International Journal for Numerical Methods in Engineering, 2(1), 5–32.
Isiaka, A. I., Sehoole, L., Durrheim, R. J., & Manzi, M. S. D. (2017). Integrated high-resolution seismic and electrical resistivity investigation of subsidence and sinkholes at abandoned coal mine sites in South Africa. In International conference on engineering geophysics, 234–237.
Johnson, W. J. (2003). Case histories of DC resistivity measurements to map shallow coal mine workings. The Leading Edge, 22(6), 571–573.
King, M. S., & Shams-Khanshir, M. (1998). Petrophysics studies of sedimentary rocks from a cross-hole seismic test site. International Journal of Rock Mechanics and Mining Sciences, 35(3), 279–289.
Li, A., Ma, Q., Lian, Y. Q., Ma, L., Mu, Q., & Chen, J. B. (2020). Numerical simulation and experimental study on floor failure mechanism of typical working face in thick coal seam in Chenghe mining area of Weibei, China. Environmental Earth Sciences, 79(5), 1–22.
Li, B. Y. (1999). “Down Three Zones” in the prediction of the water inrush from coal mine floor aquifer-theory, development and application. Journal of Shandong Institute of Mining and Technology Natural Science, 18(4), 11–18. ((in Chinese)).
Li, J. H., Hu, X. Y., Zeng, S. H., Farquharson, C. G., & Wood, P. C. (2018). Effects of transmitting-current full waveform on transient electromagnetic responses: Insights from 3D forward modeling. SEG technical program expanded abstracts, 1918–1922.
Interpex Limited. (2008). IX1D v3 Instruction Manual. http://www.interpex.com/SoftwareIndex.htm.
Liu, X. B., Cui, J. B., Liu, J. H., Li, Y. L., Li, Q. H., & Lei, N. (2012). Identifying coal mine collapse columns and gobs utilizing 3D seismic interpretation. SEG technical program expanded abstracts, 1–5.
Moore, E. J., Szasz, S. E., & Whitney, B. F. (1966). Determining formation water resistivity from chemical analysis. Journal of Petroleum Technology, 18(03), 373–376.
Nolan, J. J., Sloan, S. D., Broadfoot, S. W., Mckenna, J. R., & Metheny, O. M. (2011). Near-surface void identification using MASW and refraction tomography techniques. SEG technical program expanded abstracts, 1401–1405.
Orfanos, C., & Apostolopoulos, G. (2011). 2D–3D resistivity and microgravity measurements for the detection of an ancient tunnel in the Lavrion area, Greece. Near Surface Geophysics, 9(5), 449–457.
Patnode, H. W., & Wyllie, M. R. J. (1950). The presence of conductive solids in reservoir rocks as a factor in electric log interpretation. Journal of Petroleum Technology, 2(2), 47–52.
Qian, M. G., Miao, X. X., & Xu, J. L. (1996). Theoretical study of key stratum in ground control. Journal of China Coal Society, 21(3), 225–230. ((in Chinese)).
Raiche, A., Sugeng, F., & Wilson, G. (2007). Practical 3D EM inversion—the P223F software suite. ASEG Extended Abstracts, 2007(1), 1–5.
Suzuki, K., Oyama, T., Kawashima, F., Tsukada, T., & Jyomori, A. (2010). Monitoring of grout material injected under a reservoir using electrical and electromagnetic surveys. Exploration Geophysics, 41(1), 69–79.
Ward, S. H. & Hohmann, G. W. (1988). Electromagnetic theory for geophysical applications. In M. N. Nabighian (Ed.), Electromagnetic methods in applied geophysics. Society of Exploration. 131–252.
Xia, J. H., Nyquist, J. E, Xu, Y. X., & Roth, M. J. S. (2006). Feasibility of detecting voids with Rayleigh-wave diffraction. In Symposium on the application of geophysics to engineering and environmental problems, 1168–1180.
Xiao, P., Li, S. G., Lin, H., & Zhao, P. (2014). Distribution characteristics of stope support pressure for different main key layer position. Safety in Coal Mines, 45(12), 211–213. ((in Chinese)).
Xue, G. Q., Cheng, J. L., Zhou, N. N., Chen, W. Y., & Li, H. (2013). Detection and monitoring of water-filled voids using transient electromagnetic method: A case study in Shanxi, China. Environmental Earth Sciences, 70(5), 2263–2270.
Xue, G. Q., Hou, D. Y., & Qiu, W. Z. (2018). Identification of double-layered water-filled zones using TEM: A case study in China. Journal of Environmental and Engineering Geophysics, 23(3), 297–304.
Yasuda, N., Kimura, M., Saito, H., & Kanezaki, Y. (1995). Applicability and problems of crosshole radar tomography for imaging grouting sphere. In Proceedings 93th SEGJ conference, 231–235.
Yasuda, N., Saito, M., & Hane, E. (1994). A field study on seismic tomography for imaging grouting sphere. In Proceedings 91th SEGJ conference, 91–95.
Zhang, S. Y., & Pan, Y. L. (2004). Principles of applied geophysics. Beijing: China University of Geosciences Press.
Zhao, C. H., Jin, D. W., Geng, J. S., & Sun, Q. (2019). Numerical simulation of the groundwater system for mining shallow buried coal seams in the ecologically fragile areas of western China. Mine Water and the Environment, 38(1), 158–165.
Zhou, N. N., Xue, G. Q., Hou, D. Y., Li, H., & Chen, W. Y. (2017). Short-offset grounded-wire TEM method for efficient detection of mined-out areas in vegetation-covered mountainous coalfields. Exploration Geophysics, 48(4), 374–382.
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Wang, P., Yao, W., Guo, J. et al. Detection of Shallow Buried Water-Filled Goafs Using the Fixed-Loop Transient Electromagnetic Method: A Case Study in Shaanxi, China. Pure Appl. Geophys. 178, 529–544 (2021). https://doi.org/10.1007/s00024-021-02670-w
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DOI: https://doi.org/10.1007/s00024-021-02670-w