STABILITY ASSESSMENT METHOD OF BREAKWATERS BACKFILLED BY DREDGED SOIL

Abstract

 Rubble are used to make caisson-type breakwaters more tenacious, and the method for assessing the stability has already been proposed. On the other hand, the structure in which dredged soil is added in addition to rubble has also been adopted, but its stability has not been investigated. In this study, the reproducibility of FEM was first confirmed for the existing centrifuge model test results on the breakwaters reinforced by rubble, and the characteristics of the deformation and resistance force of the backfill were determined by FEM. In addition, the calculation of resistance force using a circular slip analysis was verified.