Modeling of whole-space transient electromagnetic responses based on FDTD and its application in the mining industry

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Authors

Yu, Jingcun
Malekian, Reza
Chang Jianghao
Su, Benyu

Journal Title

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Publisher

Institute of Electrical and Electronics Engineers

Abstract

Hidden, water-abundant areas in coal mines pose a serious threat to mine safety and production. Underground transient electromagnetic method (TEM) is one of the most effective means of detecting water-abundant areas in front of the roadway head. Traditional TEM theories and applications are interpreted mainly on the vertical component. In this study, multicomponent responses of TEM in underground roadways were modeled using the finite-difference time-domain method. Physical simulation was also used for advanced detection of TEM in the roadway. Both the numerical and physical simulation results show that the horizontal component is more sensitive to the location of water-abundant areas. The results of the joint interpretation with both horizontal and vertical components were verified in a practical coal mine application, indicating that it is feasible to use the horizontal component in interpreting TEM data. Thus, the horizontal component could serve as a new approach for coal mine TEM data processing and interpretation.

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Keywords

Advanced detection, Coal mine industry, Finite-difference time-domain (FDTD), Numerical modeling, Transient electromagnetic method (TEM), Mathematical model, Finite difference methods, Time-domain analysis, Transient analysis

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Citation

Yu, J., Malekian, R., Chang J. & Su, B. 2017, 'Modeling of whole-space transient electromagnetic responses based on FDTD and its application in the mining industry', IEEE Transactions on Industrial Informatics, vol. 13, no. 6, pp. 2974-2982.