Numerical Simulation on Oscillation-Sliding-Uplift Rock Coupled
Motion of Caisson Breakwater Under Wave Excitation |
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Authors: | WANG Yuan-zhan GONG Wei and CHI Li-hua |
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Institution: | School of Civil Engineering, Tianjin University, Tianjin Key Laboratory of Harbor & Ocean Engineering, Tianjin;School of Civil Engineering, Tianjin University, Tianjin Key Laboratory of Harbor & Ocean Engineering, Tianjin;School of Civil Engineering, Tianjin University, Tianjin Key Laboratory of Harbor & Ocean Engineering, Tianjin |
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Abstract: | Corresponding to the sliding and the overturning failure, the elementary motion modes of caisson breakwater include the horizontal-rotational oscillation coupled motion, the horizontal sliding-rotational oscillation coupled motion, the horizontal vibrating-uplift rocking coupled motion, and the horizontal sliding- uplift rocking coupled motion. The motion mode of a caisson will transform from one to another depending on the wave forces and the motion behaviors of the caisson. The numerical models of four motion modes of caisson are developed, and the numerical simulation procedure for joint motion process of various modes of caisson breakwater under wave excitation is presented and tested by a physical model experiment. It is concluded that the simulation procedure is reliable and can be applied to the dynamic stability analysis of caisson breakwaters. |
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Keywords: | caisson breakwater four motion modes joint motion process numerical simulation |
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