Effect of EPS Geofoam Inclusions on Retaining Wall: A Review
Keywords:
EPS geofoam, retaining wall, compressible inclusion, lateral earth pressures, wall displacementsAbstract
Several researchers demonstrated that expanded polystyrene (EPS) geofoam can be use as compressible
inclusions behind retaining wall to attenuate earthquake-induced dynamic loads. This review is presenting the
previous research on the deformable EPS geofoam used as compressible inclusions behind retaining wall. The
objective of this study is to analyse the effect of EPS geofoam inclusions on retaining wall. This paper presents a
review and the comparison of the results presented by the earlier researchers. It was observed that the use of EPS
geofoam gives better result in reducing lateral earthquake forces. Also increasing the thickness and density of EPS
decreases the horizontal deformation. Whereas decreasing the density of EPS decreases the isolation efficiency.
However, further studies should be done to understand the effect of position of EPS behind retaining wall other than
vertical inclusions such as horizontal inclusions.
