In order to confirm the effects on stability of structure and external force acting on the leaning type retaining wall, this sensitivity analysis is conducted. As a result of the analysis, a backwash, which is traditionally not considered as an active element, actually has a considerable impact on the leaning type retaining wall. Therefore, we have been measuring the wave forces and we also have found out the mechanism of destruction acting on the new type retaining wall by the hydraulic model experiments. This new type retaining wall will bring better results on Hiroshima harbor development plan.
