Abstract
In this study, centrifugal model experiments and dynamic response analysis were conducted for elucidating the effectiveness of seismic retrofitting method of aged pond due to joint use of masonry block and reinforced earthwork method commonly used in the forest of the law did. In the model experiments, we investigated the dynamic behavior of the cut-off body. In the analysis by the finite element method, we investigated the position of the slip surface obtained in the experiment and the vibration characteristic of the settlement amount of the cut-off wall and clarified the effect of the reinforced portion. As a result, it was found that the stability of the cut-off wall method front part is improved by the masonry block and the reinforcing net on the back side, so that destruction of the upper part of the cut-off wall is suppressed, and it is found that it is effective for deterring the cut-off wall deformation.
