Phase-lag effect on the instantaneously-liquefied seabed depth under progressive waves: Explicit approximations
文献类型：期刊论文
| 作者 | Li CF(李畅飞); Yu JH(于嘉豪); Gao FP(高福平)
|
| 刊名 | APPLIED OCEAN RESEARCH
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 147页码:12 |
| 关键词 | Non -cohesive seabed Progressive waves Transient pore -pressure Phase -lag Instantaneous liquefaction |
| ISSN号 | 0141-1187 |
| DOI | 10.1016/j.apor.2024.103965 |
| 通讯作者 | Gao, Fu-Ping(fpgao@imech.ac.cn) |
| 英文摘要 | Instantaneous liquefaction can be induced by the upward seepage force while waves propagating over a porous seabed. In this study, the instantaneous liquefaction within a non-cohesive seabed under progressive waves is analytically investigated and verified with the existing offshore observations. To characterize the instantaneous liquefaction potential, the vertical gradient of excess pore-pressure is employed, and the explicit solutions for the liquefied soil depth are then derived to reflect the phase-lag effect. Wave scale effect is further examined by comparative analysis of the liquefaction potential between laboratory and field conditions. It is indicated that, due to the phase-lag effect, the maximum liquefaction potential and the maximum liquefied soil depth no longer appear exactly under the wave trough; nevertheless, such phase difference relative to the wave trough wouldn't exceed pi /4. Neglecting the phase-lag effects would considerably underestimate the liquefaction potential as well as the liquefaction depth. Moreover, both the liquefaction potential and the corresponding liquefied soil depth are predominantly related to the non-dimensional parameter Ic for characterizing the combined influence of wave and seabed properties. |
| 分类号 | 一类 |
| WOS关键词 | INDUCED PORE PRESSURE ; EFFECTIVE STRESS ; LIQUEFACTION ; SOIL ; RESPONSES |
| 资助项目 | National Natural Science Foundation of China[11825205] ; National Natural Science Foundation of China[12061160463] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001219668000001 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Gao, Fu-Ping |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95271]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Li CF,Yu JH,Gao FP. Phase-lag effect on the instantaneously-liquefied seabed depth under progressive waves: Explicit approximations[J]. APPLIED OCEAN RESEARCH,2024,147:12. |
| APA | 李畅飞,于嘉豪,&高福平.(2024).Phase-lag effect on the instantaneously-liquefied seabed depth under progressive waves: Explicit approximations.APPLIED OCEAN RESEARCH,147,12. |
| MLA | 李畅飞,et al."Phase-lag effect on the instantaneously-liquefied seabed depth under progressive waves: Explicit approximations".APPLIED OCEAN RESEARCH 147(2024):12. |
入库方式： OAI收割
来源：力学研究所
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