抄録
Bed protective works are installed just downstream of weirs and ground sills to prevent failure and collapse of the structure due to bed scouring. Because a failure of bed protective works exposes the main structure in danger, it is importantf or river technologya nd managemento maintain the safety of the bed protectivew orks. In this paper, themodel of a vertical two-dimensional analysis for the flow with complex boundary shape of blocks is presented, in order to evaluateh ydrodynamic forces acting on the blocks. Then, the numerical analysis for deformation and failure mechanism of the blocks based on the criteria for determining whether a block moves are performed. It is clarified through the comparison between measured and computed results that the model can simulate the deformation and failure mechanisms with flow fields.
