Evaluation of Determining the Electrical Resistance of Soil over a Wide Range to Measure the Corrosivity of Soils - Case Study: Kermanshah Urban Train

Document Type : Research Article

Author

Kermanshah University of Technology

Abstract

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.

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References

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Amirkabir Journal of Civil Engineering
Volume 57, Issue 7
October 2025
Pages 1139-1164

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