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寒冷地区的结构物要求考虑抗冻设计，但实际运用的抗冻设计方法都还不太成熟。正因为如此，工程师才对冻融深度十分注目。现代有关冻融深度的计算公式都是基于付立叶热传导定律，从Ｓａａｋｈｕｆｚ—ｓｔｅｆａｎ公式推演出来的．土的热物理过程通常至为复杂，理论研究难于奏效，但可借助于模拟试验来解决。本文介绍和讨论的模拟试验法也是以Ｓ氏公式为基础的。冻结模型应与现场试验温度一致。模拟持续时间应根据时间比尺确定。模拟试验法所提供的数据确实可靠，有助于原型特征参数的计算，因而提高了设计可靠性，这一点单纯依靠数学推导是未曾达到过的。模拟试验还可避免原型计算过程中的错误。人工冻土的热模拟试验涉及到冻土器套简直径计算。一般冻土器（即融土器）环形截面的套简，在内外简之间形成一个环形腔。故应换算成等效直径以便计算时应用。
Structures in cold areas require the design of antifreeze, but the actual use of antifreeze design methods are not yet mature. Because of this, engineers are very attentive to the depth of freeze-thaw. Modern calculation of the depth of freeze-thaw are based on the law of Fourier heat transfer derived from the Saakhufz-stefan formula. The thermophysical processes of soils are usually complex and theoretical studies are hard to come by but they can be solved by means of simulation tests. The simulation test method introduced and discussed in this paper is also based on the S formula. The freezing model should be consistent with the field test temperature. The duration of the simulation should be based on the time scale. The data provided by the simulation test method is indeed reliable and contributes to the calculation of the prototype characteristic parameters, thus improving the design reliability, which has not been achieved by relying solely on mathematical derivation. Simulation tests can also avoid errors in the prototype calculation. The thermal simulation test of artificial frozen soil involves the calculation of casing diameter of frozen soil. Ordinary frozen earth (ie, earth melter) ring section of the cover, Jane and the formation of a ring between the cavity. It should be converted into equivalent diameter for calculation purposes.