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A platform for research: civil engineering, architecture and urbanism
Numerical Analysis on Stability of Caisson-Type Breakwaters under Tsunami-Induced Seepage
Abstract In this study, distinct element method (DEM) analysis and slip analysis based on the simplified Bishop method have been carried out in order to investigate stability of a caisson-type breakwater under tsunami-induced seepage and establish the design method of the caisson foundation. The effect of seepage on the bearing capacity of the caisson foundation was introduced as the reduction of the effective weight of the rubble mound in the both analyses. As a result of the distinct element (DE) analysis, it has been revealed that the shear strain of the rubble mound increases due to the tsunami-induced seepage. Moreover, from the slope stability analysis, it has been indicated that the safety factor decreases by 7–10 % due to the seepage force, which is approximately corresponding to the increase rates of shear deformation in DE analysis.
Numerical Analysis on Stability of Caisson-Type Breakwaters under Tsunami-Induced Seepage
Abstract In this study, distinct element method (DEM) analysis and slip analysis based on the simplified Bishop method have been carried out in order to investigate stability of a caisson-type breakwater under tsunami-induced seepage and establish the design method of the caisson foundation. The effect of seepage on the bearing capacity of the caisson foundation was introduced as the reduction of the effective weight of the rubble mound in the both analyses. As a result of the distinct element (DE) analysis, it has been revealed that the shear strain of the rubble mound increases due to the tsunami-induced seepage. Moreover, from the slope stability analysis, it has been indicated that the safety factor decreases by 7–10 % due to the seepage force, which is approximately corresponding to the increase rates of shear deformation in DE analysis.
Numerical Analysis on Stability of Caisson-Type Breakwaters under Tsunami-Induced Seepage
Sawada, Yutaka (author) / Miyake, Michio (author) / Miyamoto, Junji (author) / Kawabata, Toshinori (author)
Transportation Infrastructure Geotechnology ; 2 ; 120-138
2015-06-11
19 pages
Article (Journal)
Electronic Resource
English
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