Abstract：Geogrid reinforced soil retaining wall is composed of panel，geogrid and soil. Its structural characteristics are emphasized in practice at all times. Based on the self-consistent theory and concept of strain consistency，a mechanical model for soil-reinforced composite material is put forward to simulate the grogrid and soil around grogrid with a definite thickness. The structural characteristics of stepped geogrid reinforced soil retaining wall are hereby numerically analyzed with finite element method. Compared with model experiment，it can be seen that the results calculated by the present method are commendably consistent with those obtained by model experiment.
