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ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Solid Earth Geophysics
Volume 13 - 2025 | doi: 10.3389/feart.2025.1539504
This article is part of the Research Topic Geophysical Electromagnetic Exploration Theory, Technology and Application View all 3 articles
Application and Validation of the Surface-to-Underground Transient Electromagnetic Method for Detecting Deep Water-Rich Area Affected by Shallow Aquifers: A Case Study of the Ningdong Mining Area
Provisionally accepted- School of Resources and Earth Sciences, China University of Mining and Technology, Xuzhou, China
Water-rich area present underground in coal mines pose a serious threat to the safety of coal mining operations. Electrical methods are commonly used for the detection of subsurface water-rich area, but the presence of shallow aquifers can significantly affect the accuracy of deep water-rich zone detection. In this study, surface-to-underground transient electromagnetic (SUTEM) technology and the finitedifference time-domain (FDTD) method was employed to investigate the detection of deep water-rich areas under the low-resistivity shielding of shallow aquifers. On the basis of the theoretical analysis, numerical simulation, and practical application results, it was concluded that variations in the thickness and depth of shallow aquifers have a certain effect on the transient electromagnetic (TEM) response. Compared with surface TEM, SUTEM can obtain more geological information about deep water-rich area when affected by shallow aquifers, allowing for a more accurate delineation of low-resistivity anomaly area. Therefore, SUTEM can serve as a method for the detection of deep water-rich area in coal mines under similar geological conditions.
Keywords: SUTEM 1, Water-Rich Area Detection 2, Shallow Aquifer 3, Numerical Simulation 4, One-Dimensional Inversion 5
Received: 04 Dec 2024; Accepted: 17 Mar 2025.
Copyright: © 2025 Li, Dou, Jiang, Yu and Xiao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Zhonghao Dou, School of Resources and Earth Sciences, China University of Mining and Technology, Xuzhou, China
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