A physics-based model for clear-water scour development around a pile foundation in clayey soils
文献类型：期刊论文
| 作者 | Zhao, Peiqing2,3; Qi WG(漆文刚)2,3 ; Liu, Bo1; Gao FP(高福平)2,3
|
| 刊名 | APPLIED OCEAN RESEARCH
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 155页码:14 |
| 关键词 | Local scour Clay soils Time-varying model Phenomenological theory of turbulence Pile foundation |
| ISSN号 | 0141-1187 |
| DOI | 10.1016/j.apor.2025.104436 |
| 通讯作者 | Qi, Wen-Gang(qiwengang@imech.ac.cn) |
| 英文摘要 | Significant advancements have been made in understanding local scour around pile foundations in non-cohesive soils; however, the scour phenomenon in clay soils remains relatively unexplored. Existing formulas for predicting scour development in clay soils around pile foundations often rely on empirical fittings to experimental data, rendering them limited by specific experiment conditions and prone to scale effects. To address this gap, this study proposes a physics-based model for clear-water scour development around a pile foundation in clay soils under both steady and unsteady flow conditions. By integrating a scaling expression for shear stress based on the phenomenological theory of turbulence (PTT) and incorporating a general sediment transport model, an ordinary differential equation (ODE) is derived to characterize the temporal variation in scour depth following the principle of sediment mass conservation. This ODE inherently considers all significant dimensional parameters influencing the scouring process, thereby effectively addressing potential scale-related issues. The predictions of the analytical solutions for the proposed ODE closely align with previously observed scour depth development curves around pile foundations in clay soils. Additionally, the model can be applied to scenarios with unsteady flow velocities, such as waterway floods and tidal currents. |
| 分类号 | 一类 |
| WOS关键词 | KOLMOGOROV INERTIAL RANGE ; TEMPORAL VARIATION ; LOCAL SCOUR ; BRIDGE ; EROSION ; PREDICTION ; PIER |
| 资助项目 | National Natural Science Foundation of China[11972036] ; Youth Innovation Promotion Association CAS[2021018] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001407400500001 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| 其他责任者 | Qi, Wen-Gang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/98273]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.China Power Engn Consulting Grp Co Ltd, Beijing 100032, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhao, Peiqing,Qi WG,Liu, Bo,et al. A physics-based model for clear-water scour development around a pile foundation in clayey soils[J]. APPLIED OCEAN RESEARCH,2025,155:14. |
| APA | Zhao, Peiqing,漆文刚,Liu, Bo,&高福平.(2025).A physics-based model for clear-water scour development around a pile foundation in clayey soils.APPLIED OCEAN RESEARCH,155,14. |
| MLA | Zhao, Peiqing,et al."A physics-based model for clear-water scour development around a pile foundation in clayey soils".APPLIED OCEAN RESEARCH 155(2025):14. |
入库方式： OAI收割
来源：力学研究所
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