Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall

Table 7

Normal interface stiffness for the 9 m high wall.

Interface	Normal stiffness,
Between wall and foundation soil	3.29 × 10^3
Between wall and backfill soil	1.98 × 10^3
Between wall and EPS	9.7 × 10^1 to 2.52 × 10^2
Between EPS and foundation soil	9.7 × 10^1
Between EPS and backfill soil	9.7 × 10^1 to 2.52 × 10^2