In negative temperature environments, the moisture and solutes within saline soils may crystallize into ice and salt, respectively, inducing recurrent frost heave and salt expansion phenomena, and occurring differential settlement under temperature fluctuations and dynamic loading. To elucidate the dynamic behavior of frozen subgrade under cyclic loading, a series of dynamic triaxial tests was conducted on unsaturated, sulfate-contaminated frozen red clay, with systematic variation in confining pressure, moisture content, and salinity. Experime...
