粘り強い構造の海岸堤防に用いられる護岸ブロックの安定性に関する基礎的研究

概要

論文の詳細を見る
The serious damage of coastal dikes occurred in the tsunami caused by the 2011 off the Pacific coast of Tohoku earthquake. It is important to reinforce the coastal dikes with concrete blocks and to give the function of tenacious structures. In case of coastal dikes, the stability and damage of coastal dikes are affected by the strength of foundation in spillway and the fluid forces acting on concrete blocks armoring on slope just near the crest of dikes in the side of land for the over flow in tsunami. The relationship between the upstream depth and pressure distributions under the concrete blocks on the mound of slope, and the fluid forces and overturning moment acting on a concrete block adjacent to the crest of dike in the side of land. It becomes clear that the concrete block leaves from the crest of dikes in the side of land in the case of overturning moment exceeding the gravity moment of the concrete block in water.
土木学会の論文