Abstract
Load settlement behavior, bearing capacity improvement and surface deformation characteristics of geogrid reinforced soil were investigated through experimental study. Rigid circular steel plate was used as a model footing. In model experiments, it included one unreinforced test and four reinforced tests; one with triangular geogrid and three with biaxial geogrids. Test results show that triangular geogrid reinforcement outperforms biaxial geogrids of almost same unit weight. For biaxial geogrids, larger bearing capacity improvement was noticed with geogrid of higher tensile strength. Uniform surface deformation was observed with no reinforcement and triangular geogrid reinforcement, while higher non uniformity was observed with stiffer biaxial geogrid reinforcements.
