Research on longitudinal resolution of loop source transient electromagnetic method
The loop source transient electromagnetic method has been widely applied in the hydrogeological exploration of coal mines, such as demarcating impermeable layers, detecting waterlogged goaf areas, and evaluating hydro-geological parameters. In recent years, both the theory and technology of transien...
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Editorial Office of Safety in Coal Mines
2025-08-01
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| Series: | Meikuang Anquan |
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| Online Access: | https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20250243 |
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| author | Tao XING Zhihai JIANG Lele MENG Peiyu LI |
| author_facet | Tao XING Zhihai JIANG Lele MENG Peiyu LI |
| author_sort | Tao XING |
| collection | DOAJ |
| description | The loop source transient electromagnetic method has been widely applied in the hydrogeological exploration of coal mines, such as demarcating impermeable layers, detecting waterlogged goaf areas, and evaluating hydro-geological parameters. In recent years, both the theory and technology of transient electromagnetic method have made considerable progress. However, the exact detection and resolution capabilities remain unclear, which has affected the design of transient electromagnetic method schemes and the interpretation of data. In response to this, H and K-type geoelectric models were established. Through numerical calculations, quantitative analysis of the longitudinal resolution ability of the transient electromagnetic method by electrical differences, burial depth, and loop side length were carried out. Regression analysis was introduced to establish an evaluation model for the thin-layer detection ability of transient electromagnetic in loop sources, achieving quantitative prediction of resolution. The research results show that the electrical property difference is a key factor affecting the detection depth and resolution. As the electrical property difference increases, the sensitivity value increases, and the resolution of the loop source transient electromagnetic method improves. For the transmission loop with a side length of 100 meters, when the burial depth is 100 meters and the electrical property ratio to the surrounding rock is 1∶2, a low-resistance layer of 6.44 meters can be identified. When the electrical property ratio to the surrounding rock is 1∶4, a low-resistance layer of 2.1 meters can be distinguished. |
| format | Article |
| id | doaj-art-faef7a2b6ffc49adb08834f3f9622aef |
| institution | Kabale University |
| issn | 1003-496X |
| language | zho |
| publishDate | 2025-08-01 |
| publisher | Editorial Office of Safety in Coal Mines |
| record_format | Article |
| series | Meikuang Anquan |
| spelling | doaj-art-faef7a2b6ffc49adb08834f3f9622aef2025-08-20T04:02:22ZzhoEditorial Office of Safety in Coal MinesMeikuang Anquan1003-496X2025-08-0156819520610.13347/j.cnki.mkaq.20250243cMKAQ20250243Research on longitudinal resolution of loop source transient electromagnetic methodTao XING0Zhihai JIANG1Lele MENG2Peiyu LI3Beijing Exploration Resources Technology Co., Ltd., Beijing 100160, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, ChinaJiangsu Xiandai Engineering Testing Co., Ltd., Nanjing 210046, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, ChinaThe loop source transient electromagnetic method has been widely applied in the hydrogeological exploration of coal mines, such as demarcating impermeable layers, detecting waterlogged goaf areas, and evaluating hydro-geological parameters. In recent years, both the theory and technology of transient electromagnetic method have made considerable progress. However, the exact detection and resolution capabilities remain unclear, which has affected the design of transient electromagnetic method schemes and the interpretation of data. In response to this, H and K-type geoelectric models were established. Through numerical calculations, quantitative analysis of the longitudinal resolution ability of the transient electromagnetic method by electrical differences, burial depth, and loop side length were carried out. Regression analysis was introduced to establish an evaluation model for the thin-layer detection ability of transient electromagnetic in loop sources, achieving quantitative prediction of resolution. The research results show that the electrical property difference is a key factor affecting the detection depth and resolution. As the electrical property difference increases, the sensitivity value increases, and the resolution of the loop source transient electromagnetic method improves. For the transmission loop with a side length of 100 meters, when the burial depth is 100 meters and the electrical property ratio to the surrounding rock is 1∶2, a low-resistance layer of 6.44 meters can be identified. When the electrical property ratio to the surrounding rock is 1∶4, a low-resistance layer of 2.1 meters can be distinguished.https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20250243hydrogeology explorationtransparent geological support systemtransient electromagnetic methodloop source |
| spellingShingle | Tao XING Zhihai JIANG Lele MENG Peiyu LI Research on longitudinal resolution of loop source transient electromagnetic method Meikuang Anquan hydrogeology exploration transparent geological support system transient electromagnetic method loop source |
| title | Research on longitudinal resolution of loop source transient electromagnetic method |
| title_full | Research on longitudinal resolution of loop source transient electromagnetic method |
| title_fullStr | Research on longitudinal resolution of loop source transient electromagnetic method |
| title_full_unstemmed | Research on longitudinal resolution of loop source transient electromagnetic method |
| title_short | Research on longitudinal resolution of loop source transient electromagnetic method |
| title_sort | research on longitudinal resolution of loop source transient electromagnetic method |
| topic | hydrogeology exploration transparent geological support system transient electromagnetic method loop source |
| url | https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20250243 |
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