comparison of seismic displacement of gravity retaining wall and reinforced soil wall according to performance base

The performance design procedure of retaining wall is based on the permanent deformation of walls after theearthquake. during earthquake, wall acts as a solid element with coupled rotation and sliding movements on non-elastic base. this mechanism develops yield surface in wall and backfill. the expected performance of the gravitational wall in earthquake is dependent on amount of load and lateral displacement. in this study, two types of walls considered for follow up, non-reinforced gravitational wall (nrgw) and reinforced gravitational (rgw) wall reinforced with geosynthetic.