Abstract
A series of dynamic centrifuge model tests was carried out so as to investigate into both static and dynamic behaviors of segmental geosynthetics reinforced soil retaining walls (GRS walls). This paper begins with the reviews of background of the design methodology of the GRS walls and further requirements for the development of more rational design procedure. Second, model test procedures and test conditions are briefly summarized. A series of the comparison of model test behaviors with the results of the stability analyses at the normal conditions was also carried out. It clarified that current design methodology tends to overestimate the required tensile resistances of the reinforcements although the results of analyses could express the normal stability of the GRS walls at the normal conditions qualitatively.