Instability of caisson-type breakwater due to seepage of tsunami into rubble mound and seabed

Tatsuya IMASE, Kenichi MAEDA, Michio MIYAKE, Kazuhiro TSURUGASAKI, Yutaka SAWADA, Hiroko SUMIDA
2011 Journal of Japan Society of Civil Engineers Ser B2 (Coastal Engineering)  
The instability of the caisson-type breakwater due to seepage of tsunami into the rubble mound and the seabed ground was focused. The breakwater slid due to the action of the initial impulsive force, then shear deformation occurred in the rubble mound and the seabed ground, and the bearing capacity decreased. Subsequently, the hydraulic gradient increased in the breakwater at the shore side due to the continuous wave pressure. The safety factor of the breakwater
doi:10.2208/kaigan.67.i_551 fatcat:qsc6bhr6zbezdkqeo4ftpou3pe