考虑渗流场影响的混凝土坝温度场分析

Temperature fields in concrete dams with consideration of seepage fields

从热传导基本原理出发,建立了受渗流场影响的温度场数学模型,给出了有限元求解格式,开发出相应的程序.通过算例,定性分析了渗流场影响温度场的主要因素,定量分析了各因素对温度场的影响.结果表明,水位、渗透性、渗控措施和温差对温度场的影响较大.

On the basis of the basic principle of thermal conduction, a mathematical model was developed for calculation of the influences of seepage fields on the temperature distribution in concrete dams, and relevant equations for finite element calculation were derived with corresponding programs developed. By some computational examples, the main factors influencing temperature fields were qualitatively analyzed, and the inflence of each factor was quantitatively analyzed. It is concluded that the water level, permeability, measures for seepage control, and temperature difference are of obvious effect on temperature fields.