Effects of seabed flexibility on the seismic responses of offshore piles considering water-pile-soil interaction

被引：2
|
作者：
Wang, Piguang [1 ]
Wang, Baoxin [1 ]
Cheng, Xinglei [2 ]
Dong, Zhenhua [3 ]
Zhao, Mi [1 ]
Du, Xiuli [1 ]
机构：
[1] Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
[2] Tianjin Chengjian Univ, Key Lab Soft Soil Engn Character & Engn Environm T, Tianjin 300384, Peoples R China
[3] Minist Transport, Res Inst Highway, Beijing 100088, Peoples R China
来源：
OCEAN ENGINEERING | 2024年 / 308卷
基金：
中国国家自然科学基金;
关键词：
Finite element method; Horizontal earthquakes; Seismic response; Seabed flexibility; Water-pile-soil interaction;
D O I：
10.1016/j.oceaneng.2024.118262
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
The dynamic responses of water-pile-soil system subjected to horizontal earthquakes considering seabed flexibility on hydrodynamic pressures is investigated in this paper. The hydrodynamic pressure on the pile is obtained by the inviscid compressible fluid theory and the absorption of pressure waves due to the seabed flexibility is modeled by using a reflection coefficient which is frequency independent. The horizontal resistance of the soil is obtained based on the viscoelastic dynamic continuum model. Based on the analytical solution for the seismic responses of the free-field soil, the numerical model for the seismic response of the pile is developed by using the finite element method. Parametric studies are further conducted to illustrate the influence of seabed flexibility on the seismic responses of the pile.
引用
收藏
页数：11
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