河床の洗掘による根固め工の変形特性に関する研究

抄録

Flow in curved channels causes bed scouring near the outer bank. If the influence of bed erosion reaches the foundation of the revetment structure, then the whole structure can collapse. In order to prevent this damage, foot protection works are installed. The foot protection works are required to cover a certain range to avoid subsidence of the structure near the revetment foundation. So, when foot protection works are designed, it is necessmy to understand the mechanism of deformation and further failure of the revetment structure. In this study, characteristics of flow, bed scouring and deformation mechanism of the structure are examined for flow in a curved channel installed foot protection works at the outer bank. Also, we consider an estimation method of deformation for an arrangement of foot protection works, which is adapted in numerical analysis of flow and bed profiles.