2024 Volume 80 Issue 15 Article ID: 23-15049
Agricultural-steel-sheet-pile walls have thickness reduction due to corrosion. This leads to pitting corrosion and buckling of steel-sheet-pile walls. This study aims to a non-contact evaluation of steel-sheet-pile thickness using infrared measurement based on the temperature variation of a steel sheet pile according to the thickness. In analytical procedure, the temperature of steel sheet piles is calculated based on meteorological data. Surface temperatures is estimated by applying the theory of heat balance on the ground surface. In experimental procedures, steel-sheet-pile samples were set under meteorological conditions. The temperature fluctuations of the steel sheet piles were detected by a combination of heat-balance simulation and infrared measurements to determine the thickness. As a result, it was found that the relationship between standardized temperatures and steel-sheet-pile thickness showed a negative correlation during the temperature increase process and a positive correlation during the temperature decrease process.
