冻土在无外荷载时的冻融过程中,存在着热量和水分综合输运并伴随着融沉和冻胀变形。模型试验运用相似理论进行了系统分析,提出了试验必须满足的相似条件。 Freezing and thawing of frozen soil in the absence of external loads, there is a comprehensive transport of heat and moisture accompanied by thaw settlement and frost heave deformation. The model test uses the similarity theory to carry on the systematic analysis, has proposed the test must satisfy the similar condition.