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NONLINEAR WAVE-INDUCED SEABED INSTABILITY AROUND COASTAL STRUCTURES

机译:沿海结构非线性波动诱发的海底不稳定性

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摘要

Seabed liquefaction at the toe of coastal structures is one of the most serious problems threatening their stability. Various simplified techniques have been commonly used to quantify this phenomenon, but often with shortcomings. An integrated technique, using numerical models developed by the authors, is presented to analyze the conditions and extents of seabed liquefaction and slip failure. This includes: a BEM-FEM model for the dynamic interaction among wave, structure and the seabed; a poro-elastic FEM model for the dynamic interaction between structure and the seabed; and a model for the wave- induced seabed response based on Yamamoto's analytical solution (1977).
机译:沿海结构脚趾处的海底液化是威胁其稳定性的最严重问题之一。通常使用各种简化的技术来量化这种现象,但是通常都有缺点。提出了一种使用作者开发的数值模型的综合技术,以分析海床液化和滑动破坏的条件和程度。其中包括:BEM-FEM模型,用于波浪,结构和海底之间的动态相互作用;用于结构与海床之间动力相互作用的孔隙弹性有限元模型;以及基于Yamamoto的解析解(1977)的波浪诱发海床响应模型。

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