水道港口2025，Vol.46Issue(6)：840-847,8.
循环荷载作用下单桩周围海床响应机理研究
Study on response mechanism of seabed around monopile under cyclic loads
摘要
Abstract
Offshore wind farms,oil drilling platforms,and other marine projects are continuously affected by cyclic loads such as wind,waves,and currents.It is of great significance to reveal the influence of pile foundations on seabed stability under different types of offshore cyclic loads.In this paper,the spatial and temporal distribution characteristics of pore water pressure and the differences in its main action mechanisms under wave and horizontal cyclic loads were investigated through wave flume tests.The results show that under the horizontal cyclic load of the pile head,the pore pressure amplitude under different loads increases first and then decreases with depth,and the pore pressure response exhibits delayed attenuation and high-frequency fluctuations.The variation of pore pressure amplitude on the left side(compression zone)with depth is relatively gradual,and the energy is more widely distributed in the frequency domain.Under the action of wave load,the pore water pressure of the seabed decreases rapidly along the depth direction,primarily affecting the pore water pressure gradient in the surface layer.关键词
水平循环荷载/海工结构/孔压响应/高频波动/波浪荷载/孔压梯度Key words
horizontal cyclic loading/offshore structures/pore pressure response/high-frequency fluctuation characteristics/wave loading/pore pressure gradient分类
交通工程引用本文复制引用
周承霖,梁丙臣,张红,程海洋..循环荷载作用下单桩周围海床响应机理研究[J].水道港口,2025,46(6):840-847,8.基金项目
国家重点研发计划资助项目(2023YFC3007900) （2023YFC3007900）
国家自然科学基金项目(42207181) （42207181）
