| 解立波,苏 雷,王建峰,王远欣,毕建巍,凌贤长.波浪作用下高桩码头-海床系统动力响应特性研究*[J].水运工程,2025,(2):27-35 |
| 波浪作用下高桩码头-海床系统动力响应特性研究* |
| Dynamic response characteristics of pile-supported wharf-seabed system under wave action |
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| DOI： |
| 中文关键词: 波浪作用 高桩码头 海床 动力响应 数值模拟 |
| 英文关键词:wave action pile-supported wharf seabed dynamic response numerical simulation |
| 基金项目:国家自然科学基金项目（42072310、51808307） |
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| 摘要点击次数: 75 |
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| 中文摘要: |
| 波浪是深水区高桩码头的主要环境荷载。研究波浪作用下高桩码头-海床系统的动力响应是深水港工程动力设计的基础。采用ADINA建立波浪-高桩码头-海床的三维有限元模型，获得波浪作用下桩周海床孔压、海床加速度、甲板位移和桩身动水压力时程，分析高桩码头-海床系统的动力响应特性，探讨波浪周期变化对该系统动力响应的影响。数值模拟研究表明：1)波浪作用下桩周海床孔压未发生累积效应；2)中间桩所受的动水压力显著大于边桩；3)桩周海床孔压、海床加速度、桩身动水压力的幅值沿波浪传播方向衰减，波浪周期越小，衰减效应越显著。本研究涉及的建模技术可为波浪作用下类似高桩码头数值模拟提供参考，研究成果可为高桩码头-海床系统动力设计提供支持。 |
| 英文摘要: |
| Wave is the main environmental load for pile-supported wharf (PSW) in deep water area.Investigating the dynamic response characteristics of PSW-seabed system under wave action is the basis of dynamic design for deep water port.In this paper,a 3D finite element model of wave-PSW-seabed is established by ADINA.Pore water pressure and acceleration of seabed around pile,deck displacement,as well as dynamic water pressure time history of pile shaft under wave action are obtained.The dynamic response characteristics of the PSW-seabed system are analyzed,and the influence of the changing wave period on the dynamic response of this system is discussed.The numerical simulation results show that:1) there is no cumulative effect on pore pressure around pile under wave action;2) Dynamic water pressure of middle pile is significantly greater than that of the side pile;3) Amplitudes of seabed pore pressure,seabed acceleration,and dynamic water pressure attenuate along the wave propagation,and the smaller wave period,the more significant the attenuation effect.The modeling technique involved in this study can provide reference for similar PSW numerical simulation under wave action,and the investigation results can provide support for dynamic design of PSW-seabed system. |
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