Geocell-reinforced soil has been widely applied in engineering projects in permafrost regions, but its mechanical behavior during the frost heaving process still requires in-depth research. This article conducts lowtemperature frost heave tests to evaluate individual geocell-reinforced soil samples with varying water contents. Based on the experiments, a three-dimensional numerical model is established to simulate the interaction between the soil and the geocell, and to analyze the variation patterns of temperature, moisture, displacement, and frost heave strain. Then, the reinforcement effects of geocells with different shapes are compared. The results indicate that the geocell exhibits significant non-uniform strain distribution during the frost heave process. Moreover, the higher the water content, the greater the frost heave displacement. By comparing geocells of different shapes, it was found that circular geocells perform best in restricting soil frost heave. The application of geocells in frozen soil regions can enhance the frost heave performance of soil, and this study provides a theoretical basis for geocellreinforced engineering in such areas.
