对多年冻土区低层建筑地下室的解冻可通过数学建模的方法研究。该模型考虑了空气温度的变化、太阳总辐射、地表反照率以及一年中大气和地球表面之间的热传递系数的变化。建筑尺寸影响的研究,是基于基座面板的热阻和热条件土壤解冻动力学计算实验进行的。比较评估的计算融化深度结果显示,现有的解冻深度的标准,大大低估了和不依赖于基座面板的热阻。此外,该标准不考虑初始土壤热状况和大气温度的年际变化。 Thawing of the basement of low-rise buildings in permafrost regions can be studied by mathematical modeling. The model accounts for changes in air temperature, total solar radiation, surface albedo, and changes in the heat transfer coefficient between the atmosphere and the Earth’s surface over a year. The impact of building dimensions was studied based on thermal resistance and heat thawing kinetics calculations of the pedestal panels. The comparatively evaluated calculated melt depth results show that the existing thaw depth criteria greatly underestimate and do not rely on the thermal resistance of the base panel. In addition, the standard does not consider the initial soil thermal conditions and atmospheric temperature changes over time.