Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration Area
The 3D resistivity imaging surveying is adept at identifying structural details at various subsurface depths, and it can acquire valuable underground information even in complex geological environments. This technique has been widely applied in fields such as geological exploration, hydrogeology, an...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/1/68 |
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| author | Haifei Liu Yingjie Zhao Yuhao Zhang Xiaoqiang Li Daowei Zhu |
| author_facet | Haifei Liu Yingjie Zhao Yuhao Zhang Xiaoqiang Li Daowei Zhu |
| author_sort | Haifei Liu |
| collection | DOAJ |
| description | The 3D resistivity imaging surveying is adept at identifying structural details at various subsurface depths, and it can acquire valuable underground information even in complex geological environments. This technique has been widely applied in fields such as geological exploration, hydrogeology, and environmental monitoring. Currently, the 3D electrical resistivity surveys in the field are primarily deployed using regular grid and equidistant electrode layouts. However, when the survey area is influenced by obstacles or when the target being investigated is particularly complex, this may hinder the deployment of the electrode array in accordance with a rectangular grid. In some instances, it may even be impossible to position the electrodes directly above the target of investigation. The only viable option is thus to place electrodes around obstacles or special targets. In view of this, this paper studied unconventional electrode arrays and inversion imaging techniques of 3D electrical resistivity surveying in confined areas. It presents the design of three electrode arrays: “□”-shaped, “U”-shaped, and “L”-shaped. Furthermore, the study explores 3D resistivity finite element numerical simulation and inversion imaging techniques based on continuous electrical media. Finally, model experiments were conducted to verify the feasibility of these three special electrode arrays. We have applied the “□”-shaped electrode array to investigate the foundation structure of an ancient pagoda in Zhejiang Province, achieving promising results. This study provides valuable reference for the research and application of special observation in 3D electrical resistivity exploration. |
| format | Article |
| id | doaj-art-6893f55abdb34f0e86461b89e3b070c8 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-6893f55abdb34f0e86461b89e3b070c82025-01-10T13:14:20ZengMDPI AGApplied Sciences2076-34172024-12-011516810.3390/app15010068Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration AreaHaifei Liu0Yingjie Zhao1Yuhao Zhang2Xiaoqiang Li3Daowei Zhu4School of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaThe 3D resistivity imaging surveying is adept at identifying structural details at various subsurface depths, and it can acquire valuable underground information even in complex geological environments. This technique has been widely applied in fields such as geological exploration, hydrogeology, and environmental monitoring. Currently, the 3D electrical resistivity surveys in the field are primarily deployed using regular grid and equidistant electrode layouts. However, when the survey area is influenced by obstacles or when the target being investigated is particularly complex, this may hinder the deployment of the electrode array in accordance with a rectangular grid. In some instances, it may even be impossible to position the electrodes directly above the target of investigation. The only viable option is thus to place electrodes around obstacles or special targets. In view of this, this paper studied unconventional electrode arrays and inversion imaging techniques of 3D electrical resistivity surveying in confined areas. It presents the design of three electrode arrays: “□”-shaped, “U”-shaped, and “L”-shaped. Furthermore, the study explores 3D resistivity finite element numerical simulation and inversion imaging techniques based on continuous electrical media. Finally, model experiments were conducted to verify the feasibility of these three special electrode arrays. We have applied the “□”-shaped electrode array to investigate the foundation structure of an ancient pagoda in Zhejiang Province, achieving promising results. This study provides valuable reference for the research and application of special observation in 3D electrical resistivity exploration.https://www.mdpi.com/2076-3417/15/1/68restricted exploration areaunconventional electrode arrayfinite elementnumerical simulationleast-squares inversion3D resistivity imaging surveying |
| spellingShingle | Haifei Liu Yingjie Zhao Yuhao Zhang Xiaoqiang Li Daowei Zhu Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration Area Applied Sciences restricted exploration area unconventional electrode array finite element numerical simulation least-squares inversion 3D resistivity imaging surveying |
| title | Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration Area |
| title_full | Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration Area |
| title_fullStr | Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration Area |
| title_full_unstemmed | Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration Area |
| title_short | Research on Three-Dimensional Resistivity Imaging for Non-Conventional Electrode Arrays in Restricted Exploration Area |
| title_sort | research on three dimensional resistivity imaging for non conventional electrode arrays in restricted exploration area |
| topic | restricted exploration area unconventional electrode array finite element numerical simulation least-squares inversion 3D resistivity imaging surveying |
| url | https://www.mdpi.com/2076-3417/15/1/68 |
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