We have referred to the research results, independently developed"the TLD-70 soil freezing experiment box".
本文参考了已有的研究成果，自主开发了“TLD-70土壤冷冻试验箱”。
The characteristic curves of soil freezing and thawing reflect the strength, thermal properties and water and solute transport regularity.
土壤冻融特征曲线是反映土壤冻融过程中的水、热、盐迁移规律以及冻土强度、冻土的热性质的重要参数。
Based on the basic equations of simultaneous soil water and heat transfer during soil freezing, the coupled equation of moisture and heat is deduced.
利用土壤水分迁移方程和热传导方程，采用中心差分格式并在一定假设前提下建立起冻土水热耦合迁移数学模型。
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