Amirkabir University of Technology Amirkabir Journal of Civil Engineering 2588-297X 57 7 2025 09 23 Evaluation of Determining the Electrical Resistance of Soil over a Wide Range to Measure the Corrosivity of Soils - Case Study: Kermanshah Urban Train Evaluation of Determining the Electrical Resistance of Soil over a Wide Range to Measure the Corrosivity of Soils - Case Study: Kermanshah Urban Train 1139 1164 5853 10.22060/ceej.2025.23139.8116 FA Yazdan Shams Maleki Kermanshah University of Technology 0000-0001-8796-6016 Journal Article 2024 04 27 This research presents the results of field studies of large-scale underground geoelectrical explorations. The study area is the 14-km route of the first line of the Kermanshah urban train project. Studying the electrical resistivity of soils at the depth of boreholes can provide useful information about their corrosion susceptibility to designers of reinforced concrete and steel structures. The four-electrode Wenner method is the basis for the field measurements of this study and the presentation of its findings. To conduct electrical resistivity tests at different depths of urban train track boreholes, the precise findings of the Megger DET5/4D device were used. Electrical resistance tests have been conducted in 15 boreholes at 12 different stations of the project for at least three depths of 3, 5, and 7 meters. According to the comparison of the results of these tests and the tolerance table, the soil corrosion level, based on the Romanoff quantitative soil corrosion criterion, was moderate to severe at stations 4, 6, and 9 at the time of the tests, and moderate at the remaining stations. The field results of this study, along with the findings of other research studies, show that the presence of the Qarehsu and Abshuran rivers within Kermanshah city and the leakage of wastewater into these rivers, as well as the presence of extensive clay and calcareous soil beds, are the main factors in identifying moderate to severe corrosion potential in most parts of the city, especially in areas adjacent to these rivers. This research presents the results of field studies of large-scale underground geoelectrical explorations. The study area is the 14-km route of the first line of the Kermanshah urban train project. Studying the electrical resistivity of soils at the depth of boreholes can provide useful information about their corrosion susceptibility to designers of reinforced concrete and steel structures. The four-electrode Wenner method is the basis for the field measurements of this study and the presentation of its findings. To conduct electrical resistivity tests at different depths of urban train track boreholes, the precise findings of the Megger DET5/4D device were used. Electrical resistance tests have been conducted in 15 boreholes at 12 different stations of the project for at least three depths of 3, 5, and 7 meters. According to the comparison of the results of these tests and the tolerance table, the soil corrosion level, based on the Romanoff quantitative soil corrosion criterion, was moderate to severe at stations 4, 6, and 9 at the time of the tests, and moderate at the remaining stations. The field results of this study, along with the findings of other research studies, show that the presence of the Qarehsu and Abshuran rivers within Kermanshah city and the leakage of wastewater into these rivers, as well as the presence of extensive clay and calcareous soil beds, are the main factors in identifying moderate to severe corrosion potential in most parts of the city, especially in areas adjacent to these rivers. https://ceej.aut.ac.ir/article_5853_367692068f069c135b7d5a3a59e470d3.pdf