Modelling of coupled heat, moisture and stress field in freezing soil

A model for coupled heat, moisture and stress field in freezing soil is proposed. A numerical simulation for an experiment published by Penner (1986) in saturated soil using this model is carried out. The results of the simulation for temperature field and heave agree well with the experimental results. In addition, the stress field in freezing soil is also given by this model. The model is well adapted for solving practical frost heave problems in which the heave is coupled with deviatoric creep, such as under foundations or around chilled buried pipelines.