Thermal Simulation of Hydration Heat in Slab of Taishan Nuclear Power Plant Unit 2

摘要

Taishan nuclear power plant is the third one under construction of European Pressurized Reactor (EPR). To more accurately simulate hydration temperature field in the slab of Taishan nuclear power plant unit 2, the Equivalent Age-Hydration Degree Curve (EAHDC) was developed and was used in combination with the Model Change Interaction Function (MCIF) of ABAQUS to consider effects of age, temperature and construction process on hydration thermal field of concrete. Given the characteristics of construction process and geometry of the slab, half model was adopted to predict hydration temperature field of the whole slab, and MCIF was used to simulate the construction process. With combination of EAHDC and MCIF, the thermal properties of concrete were practically defined as a function of age, temperature, and construction process. Compared with the onsite measured temperature and the simulation temperature without consideration of construction process, the EAHDC-MCIF combination method provides improved accuracy in the simulation of hydration temperature field of concrete.