上海交通大学学报

上海交通大学学报 >

2026 , Vol. 60 >Issue 1: 142 - 153

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2024.071

船舶海洋与建筑工程

波流作用下海床振荡与累积响应的半动态耦合模型

  • 万志朋 ,
  • 崔林 ,
  • 郑东生
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  • 青岛理工大学 土木工程学院, 山东 青岛 266520
万志朋(1995—),博士生,从事波流-海床-结构物相互作用研究.
崔 林,副教授;E-mail:cuilin@qut.edu.cn.

收稿日期: 2024-03-07

  修回日期: 2024-04-28

  录用日期: 2024-07-11

  网络出版日期: 2024-07-25

基金资助

国家自然科学基金资助项目(52271281)

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A Semi-Dynamic Coupled Model of Seabed Oscillatory and Residual Response Under Wave-Current Interaction

  • WAN Zhipeng ,
  • CUI Lin ,
  • JENG Dongsheng
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  • College of Civil Engineering, Qingdao University of Technology, Qingdao 266520, Shandong, China

Received date: 2024-03-07

  Revised date: 2024-04-28

  Accepted date: 2024-07-11

  Online published: 2024-07-25

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摘要

波流共同作用的荷载环境下,预测波(流)致多孔海床孔压累积引起的海床液化失稳过程是至关重要的.在Biot准静态固结模型基础上,既往研究通常采用解耦模型分别讨论振荡孔隙压力和累积孔隙压力,并忽略了土体颗粒加速度引起的惯性效应对累积孔隙压力的影响.本文结合振荡与累积孔压之间的耦合作用,提出了一种波流联合作用下海床振荡与累积响应的半动态耦合模型.通过与已有水槽试验结果对比,验证了耦合算法在数值模型中的可靠性.此外,通过设置多组对照案例,深入分析了波浪参数和土体参数对累积孔压发展的影响.研究结果表明,波高、水深和相对密实度的改变会极大影响累积孔压以及最大液化深度的发展;半动态耦合模型与准静态耦合模型预测的最大液化深度差异在6%以内,反映了土颗粒加速度对孔压累积的影响.

关键词： 波流共同作用; 耦合机制; 土体动力响应; 液化准则; 最大液化深度

本文引用格式

万志朋 , 崔林 , 郑东生 . 波流作用下海床振荡与累积响应的半动态耦合模型[J]. 上海交通大学学报, 2026 , 60(1) : 142 -153 . DOI: 10.16183/j.cnki.jsjtu.2024.071

Abstract

The evaluation of the wave-induced residual pore pressure in a porous seabed is vital for the prediction of the potential of seabed instability under the combined action of waves and currents. Based on the Biot’s quasi-static consolidation model, previous studies have typically used decoupled models to separately discuss oscillatory pore pressure and cumulated pore pressure, which ignores the inertia effects due to the acceleration of solid particles on the accumulation of pore pressure. In this paper, considering coupling effect between oscillatory and accumulated pore pressures, a semi-dynamic coupled model for soil dynamic response under wave-current interaction is proposed. Upon comparison with existing laboratory experimental data, the capacity of the proposed coupled method is demonstrated. A series of parametric studies were conducted to analyze the influence of wave characteristics and soil parameters on cumulative pore pressure and corresponding liquefaction. The results indicate that changes in wave height, water depth, and relative density significantly affect the accumulation pore pressure and the development of the maximum liquefaction depth. The difference in maximum liquefaction depth predicted by the semi-dynamic coupled model and the quasi-static coupled model is within 6%, indicating the influence of soil particle acceleration on pore pressure accumulation.

Key words： wave-current interaction; coupling mechanism; soil dynamic response; liquefaction criterion; maximum liquefaction depth

参考文献

[1] 刘晓磊, 张淑玉, 郑杰文, 等. 黄河三角洲极端风暴诱发地质灾害研究进展及对策[J]. 海洋地质前沿, 2022, 38(11): 28-39.
  LIU Xiaolei, ZHANG Shuyu, ZHENG Jiewen, et al. Research progress and countermeasures on geological hazards induced by extreme storms in the Yellow River Delta[J]. Marine Geology Frontiers, 2022, 38(11): 28-39.
[2] 常方强, 贾永刚. 黄河口粉质土海床液化过程的现场试验研究[J]. 土木工程学报, 2012, 45(1): 121-126.
  CHANG Fangqiang, JIA Yonggang. In-situ test to study silt liquefaction at the subaqueous delta of Yellow River[J]. China Civil Engineering Journal, 2012, 45(1): 121-126.
[3] SUMER B M. Liquefaction around marine structures[M]. New Jersey, USA: World Scientific, 2014.
[4] BIOT M A. General theory of three-dimensional consolidation[J]. Journal of Applied Physics, 1941, 12(2): 155-164.
[5] YAMAMOTO T, KONING H L, SELLMEIJER H, et al. On the response of a poro-elastic bed to water waves[J]. Journal of Fluid Mechanics, 1978, 87: 193-206.
[6] JENG D S, RAHMAN M. Effective stresses in a porous seabed of finite thickness: Inertia effects[J]. Canadian Geotechnical Journal, 2000, 37(6): 1383-1392.
[7] JENG D S, CHA D H. Effects of dynamic soil behavior and wave non-linearity on the wave-induced pore pressure and effective stresses in porous seabed[J]. Ocean Engineering, 2003, 30(16): 2065-2089.
[8] YANG G, YE J H. Wave & current-induced progressive liquefaction in loosely deposited seabed[J]. Ocean Engineering, 2017, 142: 303-314.
[9] SEED H B, RAHMAN M S. Wave-induced pore pressure in relation to ocean floor stability of cohesionless soils[J]. Marine Geotechnology, 1978, 3(2): 123-150.
[10] MCDOUGAL W G, TSAI Y T, LIU L F, et al. Wave-induced pore water pressure accumulation in marine soils[J]. Journal of Offshore Mechanics & Arctic Engineering, 1989, 111(1): 52-56.
[11] JENG D S, SEYMOUR B R, LI J. A new approximation for pore pressure accumulation in marine sediment due to water waves[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2007, 31(1): 53-69.
[12] SUMER B M, FREDS?E J. The mechanics of scour in the marine environment[M]. New Jersey, USA: World Scientific, 2002.
[13] SUMER B M, KIRCA V S O, FREDSOE J. Experimental validation of a mathematical model for seabed liquefaction under waves[J]. International Journal of Offshore and Polar Engineering, 2012, 22: 133-141.
[14] JENG D S, ZHAO H Y. Two-dimensional model for accumulation of pore pressure in marine sediments[J]. Journal of Waterway, Port, Coastal, and Ocean Engineering, 2015, 141(3): 04014042.
[15] TSOTSOS S, GEORGIADIS M, DAMASKINIDOU A. Numerical analysis of liquefaction potential of partially drained seafloors[J]. Coastal Engineering, 1989, 13(2): 117-128.
[16] LIU X L, CUI H N, JENG D S, et al. A coupled mathematical model for accumulation of wave-induced pore water pressure and its application[J]. Coastal Engineering, 2019, 154: 103577.
[17] HIGUERA P. Application of computational fluid dynamics to wave action on structures[D]. Spain: University of Cantabria, 2015.
[18] ANDERSON J D. Computational fluid dynamics: the basics with applications[M]. New York, USA: McGraw-Hill, 1995.
[19] SCH?FFER H A, GERT K. Review of multidirectional active wave absorption methods[J]. Journal of Waterway Port Coastal & Ocean Engineering, 2000, 126(2): 88-97.
[20] QI W G, LI C F, JENG D S, et al. Combined wave-current induced excess pore-pressure in a sandy seabed: Flume observations and comparisons with theoretical models[J]. Coastal Engineering, 2019, 147: 89-98.
[21] YE J H, JENG D S. Effects of bottom shear stresses on the wave-induced dynamic response in a porous seabed: PORO-WSSI (shear) model[J]. Acta Mechanica Sinica, 2011, 27: 898-911.
[22] ZEN K, YAMAZAKI H. Mechanism of wave-induced liquefaction and densification in seabed[J]. Soils and Foundations, 2008, 30(4): 90-104.
[23] ISHIHARA H. Liquefaction and flow failure during earthquakes[J]. Géotechnique, 1993, 43: 351-451.
[24] YE J H. 3D liquefaction criteria for seabed considering the cohesion and friction of soil[J]. Applied Ocean Research, 2012, 37: 111-119.
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