高层建筑基础大体积砼绝热温升计算

提出了高层建筑基础下土壤温度场的概念。采用一维非稳定传热方程来描述高层建筑基础大体积砼的传热过程，建立了土壤温度场与砼温度场的数学模型，研究了其较精确的显式差分求解方法。结果表明：由模型所计算出的理论值与现场实测值相当吻合。为高层建筑基础大体积砼绝热温升计算提供了理论依据。

Calculation of Adiabatic Temperature Change of Mass Concrete of Foundation in High-rise Building

According to actual situation of Surgery Buiding of Xiehe Hospital, one-dimension unstable diathermanous equations were used to describe the diathermanous process of mass concrete of foundation with full considerations of the influences of ground temperature changes and thermal insulation layers of concrete surface, the mathematical models of soil and concrete temperature fields were proposed and their explicit difference solutions were studied. The results showed the theoretic values by the model were in consistence with test ones. The theoretic basis was presented for calculating and controlling adiabatic temperature change of mass concrete of foundation in high-rise building in this paper.