Abstract
While the flexible metal facing of a geogrid reinforced soil wall prevents the slipping of backfill soil and confines it by connecting with the geogrid, the earth pressure acting on the facing remains unclear. Authors carried out model test to investigate and model the failure mode of backfill soil when part of the wall’s facing is removed. The results indicate that the backfill soil between the upper and lower geogrids slips out in a wedge shape. Both model test and numerical analysis confirm that local pressure, rather than the active earth pressure typically considered in retaining wall design, acts on the facing. This paper reports on the modeling and verification of local pressure acting on the facing of the geogrid reinforced soil wall.
