Abstract: Frost heave rate, as a conventional frost heave index, can only estimate the frost heave deformation of soils. In order to better evaluate the frost heave property of the soil and verify whether the segregation potential model can effectively evaluate the frost heave sensitivity of the soil, the temperature distribution and deformation development of the soil during the freezing process are measured under the laboratory conditions. The segregation potential is then calculated according to the model proposed by Konrad. The relationship between the segregation potential and the freezing time, the segregation potential and the frost heave deformation and the frost heave rate are analyzed. The studies show that the segregation potential of the saturated silty clay has a good positive correlation with the frost heave deformation and frost heave rate under the onedimension freezing condition. The segregation potential can effectively evaluate the frost heave sensitivity of the soil and can characterize the degree and trend of frost heave.

Key words: Frozen Soils, Frost Heave, Frost Susceptibility, Segregation Potential