Analysis method of thermal dam deformation

Based on the internal temperature variation of a dam lagging behind the ambient temperature variation, the ambient tempera- ture of continuous variation is disctetized, and the functional expression of the thermal displacement component of the dam caused by single instantaneous temperature variation is obtained. Considering the temporal and spatial distribution law of the ambient temperature and its relation with air and water temperature, the function is expanded into a Taylor series. As a result, the improved thermal displacement component expression for a dam monitoring model is obtained.