【摘要】 以沈阳市季节性冻土为例,基于冻结条件下水热耦合迁移的数学模型,采用中心差分格式并用线性化迭代法求解,对现场土壤冻结过程进行了模拟。与实测结果对比表明,采用的参数及数学模型可成功模拟现场土壤冻结过程,并讨论了土壤冻结时水分与温度的迁移规律,可为后续研究奠定基础。更多还原

【Abstract】 Taking the seasonal frozen soil in Shenyang City for an example,based on the mathematical model of coupled water and heat transfer under soil freezing conditions,the on-site soil freezing process is simulated by using central difference scheme and linear iteration solution method.Comparison of the instance results,it is proved that the parameters and mathematical model are successful to simulate the on-site soil freezing process.The migration law of moisture and temperature during soil freezing process is discussed,which lies the theoretical foundation for future research.更多还原