Design Of Temperature Control for RCC Gravity Dam Of Suofengyin Hydropower Station

The dam of Sofengyin Hydropower Station is RCC gravity one with highest height of 115.8m The foundation constraint is very strong because the river valley at dam site is narrow.In order to prevent occurring impair crack on the dam body,the designer has strengthened temperature control in some key links such as structure design of the dam,selection of concrete materials,construction method etc..Using 3-d finite element method the designer also simulated constructing progress by layers and joints,as well as carried out simulating calculations to temperature field of the dam.According to the concrete completed at the foundation constraint area and in dam body,the crack are few,andonly on the surface,this makes known the quality of concrete constructing at the areas is quite well.