Abstract
In order to perform the optimum design considering the life cycle costs of wave-dissipating blocks which are made of coal ash, the following two topics were discussed in this study.
One is the reliability analysis for the optimum design on the stability against the waves. The field investigation, the numerical simulation and the hydraulic model test were conducted in order to evaluate the stability number of the blocks. The other is the probabilistic design of the concrete-blocks for the durability against the freezing. The freezing and thawing tests were conducted and the relative elastic coefficient were estimated in order to evaluate the life cycle costs.
