Abstract
The development of swamp areas have been widely using the steel sheet pile canal.In recent years, the relationship between the durability and the corrosion of the steel sheet pile has been discussed as a technical problem in maintenance.In this study, the thermal image data of corroded steel sheet pile by infrared thermography method was evaluated using the semi-variogram model.The semi-variogram analysis is a quantitative evaluation method of the spatial distribution of physical properties.The semi-variogram appeared different semi-variance characteristics depending on corroded conditions.Thus, it could be quantitatively evaluated of corroded conditions of steel sheet pile canal is by the semi-variogram analysis using infrared image.