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基于冻土路基特殊的工程性质,对水分迁移结果即含水量变化对温度场的影响特别是对热物理参数的影响进行了研究,考虑温度变化对土体水分迁移机理及计算方法进行了研究,提出了冻土路基水热耦合计算模型,并给出了水热耦合计算的总体流程图,实例计算揭示了冻土路基温度场和含水状态的横向差异。
Based on the special engineering properties of the permafrost subgrade, the influence of moisture migration on the temperature field, especially the influence on the thermophysical parameters, is studied. The mechanism and calculation method of soil water migration are studied considering the temperature variation. The calculation model of water-heat coupling is put forward. The overall flow chart of water-heat coupling calculation is given. The case calculation reveals the horizontal difference between the temperature field and the water-containing state of frozen soil subgrade.