Abstract
In the construction process, the concrete dam is divided into many blocks which are further divided into many horizontal layers with thickness 1.5–3.0m. Generally, there are several years from the beginning to the completion of construction of a dam. Due to the variation of air temperature, the hydration heat, and pipe cooling, the variation of temperature field is very complex. It is difficult to compute the thermal stresses in the construction period by the traditional methods of structural mechanics. As the number of the monitoring instruments is small, it is also difficult to give the actual stress field of a concrete dam in the construction process by the instrumental monitoring. Only the finite element method can be used to give the simulation computation of concrete dams considering the process of construction and all the factors which influence the temperature and stress fields of the dam. If necessary, it can give the factor of safety by overload computation.
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