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以青藏高原北麓河地区的气象资料、热融湖信息和冻土监测数据为基础,以柱坐标系下伴有相变的热传导方程为模型,在假设不同半径热融湖湖底温度和湖水深度相同条件下,模拟了不同半径热融湖对湖下多年冻土热状况和融区发展长期影响的差异.计算结果表明,不同半径热融湖湖下土壤热状况和融区发展都有较大差异,精确模拟热融湖下土壤热状况和融区发展的数学模型必须考虑热融滑塌引起的热融湖横向扩展作用.
Based on the meteorological data, hot-melt lake information and frozen soil monitoring data in Beiluhe area of Qinghai-Tibet Plateau, taking the heat conduction equation accompanied by phase transition under the cylindrical coordinate system as the model, it is assumed that the bottom temperature of hot-melt lake and water depth Under the same conditions, this paper simulates the long-term effects of the hot-melt lakes with different radii on the thermal status and the development of the melting zone in the permafrost.The results show that the soil thermal conditions and the development of the melting zone are relatively large The mathematical model that differentiates and accurately simulates the soil thermal condition and the development of the melting zone under the hot-melt lake must consider the lateral expansion of the hot-melt lake caused by the thermal slump.