Vertical kinematic response of monopiles subjected to vertically propagating seismic P-waves
Article
Article Title | Vertical kinematic response of monopiles subjected to vertically propagating seismic P-waves |
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ERA Journal ID | 4710 |
Article Category | Article |
Authors | Zheng, Changjie, Yang, Jingquan, Shiau, Jim and Huang, Ming |
Journal Title | Ocean Engineering |
Number of Pages | 13 |
Year | 2025 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0029-8018 |
1873-5258 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.oceaneng.2024.120158 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0029801824034966 |
Abstract | A rigorous mathematical model is developed to analyze the kinematic response of monopiles embedded in the seabed under vertically incident P-waves. The seabed is considered to consist of nearly saturated soil, in which the mixture of pore water and dissolved air bubbles is treated as a homogeneous fluid phase. The governing equations of soil and pile are formulated using the Biot's poroelastodynamic theory and one-dimensional bar vibration theory, respectively. The frictional forces between the inner and outer soil layers are derived, and a closed-form series solution for the monopile's vertical seismic response is obtained by applying the boundary conditions of the pile-soil system. The proposed solution is validated through comparisons with existing studies and is subsequently used to explore the effects of key parameters and the role of inner soil on the seismic behavior of the soil-pile system, leading to several significant conclusions. |
Keywords | Monopile; Nearly saturated soil; Kinematic response; P waves |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Fujian University of Technology, China |
School of Engineering | |
Fuzhou University, China |
https://research.usq.edu.au/item/zqxv0/vertical-kinematic-response-of-monopiles-subjected-to-vertically-propagating-seismic-p-waves
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