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<p>In this study, a composite breakwater built in the phase II project at the western zone of Yantai Port is taken as the engineering background, and a self-developed one-way coupling model OlaFlow–ABAQUS for the dynamics of wave–structure–foundation system is employed to explore the dynamic response characteristics and evaluate the stability of the composite breakwater and its seabed foundation at Yantai Port under future possible extreme sea state with a 50-year return period. The results show that the caisson of the composite breakwater has an adequate capacity to withstand the impact of extreme wave, with a maximum sway amplitude of approximately 4&#xa0;cm at the top of the caisson. Additionally, the composite breakwater has a sufficient capacity to resist the lateral sliding. Summarily, the breakwater built in the phase II project at the western zone of Yantai Port could retain its normal serviceability under the fortified extreme wave conditions. This study demonstrates that the one-way coupling model OlaFlow–ABAQUS has the capability to be applied to practical engineering and also provides a practical case study for the one-way coupling algorithm of the fluid–structure–seabed interaction problem.</p>

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Wave-induced dynamics and stability analysis of a composite breakwater and its seabed foundation at the western zone of Yantai Port: a practical case study

  • 期刊论文

  • 发表日期：

    2025年6月5日

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  • Guoxiang Yang,
  • Dawei Yu,
  • Hao Zheng,
  • Yan Zhu,
  • Jianhong Ye

摘要

In this study, a composite breakwater built in the phase II project at the western zone of Yantai Port is taken as the engineering background, and a self-developed one-way coupling model OlaFlow–ABAQUS for the dynamics of wave–structure–foundation system is employed to explore the dynamic response characteristics and evaluate the stability of the composite breakwater and its seabed foundation at Yantai Port under future possible extreme sea state with a 50-year return period. The results show that the caisson of the composite breakwater has an adequate capacity to withstand the impact of extreme wave, with a maximum sway amplitude of approximately 4 cm at the top of the caisson. Additionally, the composite breakwater has a sufficient capacity to resist the lateral sliding. Summarily, the breakwater built in the phase II project at the western zone of Yantai Port could retain its normal serviceability under the fortified extreme wave conditions. This study demonstrates that the one-way coupling model OlaFlow–ABAQUS has the capability to be applied to practical engineering and also provides a practical case study for the one-way coupling algorithm of the fluid–structure–seabed interaction problem.