核电站底板大体积混凝土温度场有限元分析

Finite Element Analysis for Temperature Field of Basement Slab Mass Concrete in Nuclear Power Plant

恶劣的气候条件对混凝土质量影响很大，考虑到核电站结构的重要性，有必要以瞬态热传导方程和水化热模型为基础，建立三维有限元模型。本文以恰希玛三期工程为对象，通过对大体积混凝土的温度场进行计算和分析，得出其温度场分布规律，防止有害温度裂缝产生．为类似核电站大体积混凝土设计与施工提供参考。

The concrete quality is greatly affected by harsh weather and the quality of nuclear power plant structures is very important, so it is necessary to calculate and analysis the temperature field of basement slab mass concrete using three-dimensional finite element model basing on heat exchange equa- tion and hydration heat model. The calculation will obtain the distribution of temperature field of mass concrete, prevent the adverse temperature-induced cracks and provide the theory basis for the similar nuclear power plant mass concrete structure analysis.