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This paper compares the behavior of four geogrid reinforced soil walls with modular facing under cyclic strip footing loading. Four types of reinforcement schemes were used in the laboratory tests on 150 cm × 100 cm × 126.5 cm (length × width × height) walls. Strip plate was used to simulate the foundations for bridges. The settlement of the footing, deflection of the wall facing, lateral and vertical stresses below the centerline of the footings, strains in reinforcement layers, and acceleration in the soils were monitored during the cyclic loading tests. It was found that the layout of reinforcement layers greatly affects the bearing capacity, earth pressure coefficient, and dynamic responses of the walls.

Only considered creep behavior of geosynthetics in the design and construction of reinforced structures, not that the creep behavior of reinforced materials considered geosynthetics-sand interaction under different loading levels. A series of creep tests on a geogrid under different loading levels were carried out through a self-developed test device. The long-term creep characteristics of the geogrids under different loading levels were analyzed. The results showed that: Compared to sand constraint condition, under the same loading level, the creep rate under non-constraint condition is about 1.1 times. After the creep time over 400 h, the strain growth rate tends to be a constant value for sand constraint condition, which needs 700 h for non-constraint condition. Creep deformation mainly occurs near the pullout endpoint of the geogrid, and the deformation of each strain measurement zone is reduced from the tensile end to the fixed end of the geogrid.