This study investigates the deformation characteristics of geosynthetic reinforced soil (GRS) bridge abutment models under cyclic loading conditions through experimental methods. The GRS abutment models were built using well-graded sand as backfill material and biaxial geogrid for reinforcement. Settlements of the footings, displacements of the facing, and strains in the reinforcements were monitored and analyzed. The findings show that cumulative settlements increase as the cyclic load amplitude rises. Furthermore, facing displacement tends to increase with height, reaching its maximum at the top. The cyclic loading amplitude affects the strains in the upper reinforcements more significantly than those in the lower reinforcements.

来源平台：PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON TRANSPORTATION GEOTECHNICS, VOL 8, ICTG 2024