Abstract
In this study, focused on the cushioning function of EPS, impact absorption effect of the soil mixed with crushed EPS was investigated. Concretely, assuming a scene that a rammer was falling on the mixed soil, the effects of decreasing an impact acceleration for a falling object and an impact load for a bearing foundation caused by mixing of crushed EPS were examined. Then, influences of the deformation characteristics of the mixed soil upon these impact absorbency were considered. As a result, it was found that the impact acceleration and load were decreased by the mixture ratio of crushed EPS, and the decreasing ratio was almost in proportion to the decreasing ratio of deformation modulus of the mixed soil. And it was almost found that the decreasing ratio of the impact acceleration was correlated with the elastic deformation component originated in crushed EPS.
