Abstract: In order to study the temperature and moisture of levee in the deep seasonally frozen area during the periodic of freezing, the multifield coupling equations of the heat conduction and the moisture migration theory are adopted. The variation of the temperature field and the moisture field are simulated by the finite element method. The results indicate that: the depth of the temperature variation zone is 6 meters; The temperature field variation in the levee has laps behind the ambient temperature field, especially, this lap is increased with depth. In the process of freezing, the moisture transfers from the unfrozen zone to the frozen zone; The freezing depth of levee is slightly larger than that of the natural strata.

Key words: Deep Seasonally Frozen Regions, Levees, Temperature Variation, Moisture Migration