FINITE ELEMENT ANALYSIS OF GEOGRID REINFORCED SOIL WALL

Abstract

Geogrid reinforced soil wall (GRSW) are the cost effective retaining wall which is mostly used now days. GRS walls have become more popular because of their uses over the retaining walls such as flexibility, ease in construction, lower cost than normal walls. This basically reduce the differential settlement in foundation due to the variation of surcharge loading. This study is mainly based on settlement and stability calculation on backfill soil. The behavior of lower GRS wall has seen below the abutment in this study. Geogrids are used to safe the structure at various loading conditions to reduce settlement and increase the stability of structure. Geogrids also used to mitigate the displacement in the soil wall. Finite element analysis method has been used by commercially available software PLAXIS 2D. In which the plane strain model with 15 noded elements was defined to simulate the problem. By use of this, effect of different surcharge loading and bridge load applied on the lower GRS wall to see the behavior of soil structure.