The Analyses About The High Rcc Gravity Dam Of The Longtan Hydroelectric Station

The high RCC gravity dam of Longtan Hydroelectric Station is the highest gravity dam in the world, but the RCC darn only has 30 years history. So it needs more research and studying on this RCC dam for the Longtan project. In this paper, we try to use ANSYS model the process of the construction of the high RCC gravity dam at the right bank of Longtan project. The calculation including the concrete thermal analyses and the thermal-creep-stress, and it will take account into the cement's hydrate heat, the Elastic module, the creep and the variety of air temperature. The analyses fully conform to the fact of the construction and the time schedule. According to the analyses of the varying temperature field and stress field of the dam, we can discuss the law of the temperature and the thermal creep stress in the RCC gravity dam when it was constructed by layer-ascending method and then give some data and theories to the temperature control as the reference. At the same time, we try to find the easy and convenient method to model the process of RCC gravity dam construction, which can give the engineers the facility to control the temperature and the stress of the dam during the process of construction.