Detection of shallow underground targets using electrical resistivity tomography and the implications in civil/environmental engineering
| Autor: | Joseph Omeiza Alao, Kolawole Muideen Lawal, Bala Bello Muhammad Dewu, Jimoh Raimi |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Discover Geoscience, Vol 2, Iss 1, Pp 1-12 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2948-1589 90395905 |
| DOI: | 10.1007/s44288-024-00058-6 |
| Popis: | Abstract Applying the electrical resistivity tomography (ERT) technique in detecting very near-surface targets is quite challenging in geophysical investigation, especially in civil and environmental engineering for adequate planning and designing of structural foundations, contributing to the overall safety and efficiency of construction projects. However, locating the exact position and depth of underground targets such as faults, underground utilities, and contaminants is more challenging. Therefore, this study is aimed at examining the geophysical response of various buried targets and evaluating the ability of ERT to detect buried targets in terms of locations and depths of occurrence in the context of engineering investigation and environmental studies. A laboratory test was conducted on the targets to determine their electrical conductivity and resistivity before burial. The two-dimensional (2D) ERT survey was performed on thirteen targets buried at the site using both Wenner and dipole–dipole (DD) arrays. Both arrays captured the metallic targets with a low electrical resistivity contrast ( |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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