本文介绍了工程建筑物基础和多年冻土地基整体的相似模型试验。试验结果与实体取得良好的一致。从动态过程肯定了持力层为含土冰层时，冻土允许承载力Ｒｆ的可靠性。同时，明确了可依据冻土层年平均地温Ｔ（ｃｐ）＝－２．５℃时，持力层（平均）地温Ｔ＝－０．５℃，允许承载力Ｒｆ＝０．１ＭＰａ，只能建一层平房。当Ｔ（ｃｐ）＝－４．０℃时，Ｔ＝－１０──１．２℃，Ｒｆ＝０．１５－０．１７ＭＰａ，可有条件地建二层楼房。 This article describes the similarity model tests for the foundation of an engineering building and the permafrost base as a whole. The test results are in good agreement with the entity. From the dynamic process, the reliability of the permissible bearing capacity Rf of permafrost is confirmed when the bearing layer is soil-containing ice. At the same time, it was clarified that based on the annual average ground temperature T(cp)=-2.5°C in the permafrost, the holding layer (average) ground temperature T=-0.5°C, allowable bearing capacity Rf=0.1MPa, only Build a bungalow. When T (cp) = -4.0 °C, T = -10 - 1.2 °C, Rf = 0.15 - 0.17 MPa, can be conditionally built two-story building.