| Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach | |
Han, Shichong1; Zhou, Mozhen1; Zhang, Dingli1; Qi WG(漆文刚)2,3 ; Xue, Chaodong1; Fang, Qian1
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| Corresponding Author | Zhou, Mozhen(mzzhou@bjtu.edu.cn) |
| Source Publication | JOURNAL OF MARINE SCIENCE AND ENGINEERING
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| 2024-03-01 | |
| Volume | 12Issue:3Pages:21 |
| Abstract | In complex marine environments, the wave-induced instantaneous liquefaction of the seabed is a key issue for the long-term safety control of marine structures. Existing computational frameworks for instantaneous liquefaction result in unreasonable tensile stresses in a non-cohesive seabed. To address this issue, a liquefaction-associated non-Darcy flow model has been proposed, but it has only been applied to the scenario of a pure seabed without a structure. In this study, we applied the previously proposed non-Darcy flow model to investigate the mechanism of wave-seabed-structure interactions under extreme wave loading considering a pipeline fully buried in a non-cohesive seabed. By comparing the liquefaction depths in the presence and absence of structures, it was found that the existence of structures weakens the attenuation of the pore pressure amplitude and influences the overall pore pressure distribution. Parametric studies were conducted. It was found that the liquefaction depth from the non-Darcy model is approximately 0.73 times that from the traditional Darcy model, regardless of whether or not a pipeline is involved. A quantitative relationship between the wave loading and structural size was established. The liquefied zone above the buried pipeline was found to be smaller than that in a pure seabed without a structure. A tentative explanation is provided for this phenomenon. |
| Keyword | extreme wave loading wave-induced seabed liquefaction non-Darcy flow model wave-seabed-structure interactions non-cohesive seabed |
| DOI | 10.3390/jmse12030373 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001192479000001 |
| WOS Keyword | INDUCED PORE PRESSURE ; NUMERICAL-MODEL ; MOMENTARY LIQUEFACTION ; NONLINEAR-WAVE ; SAND ; SOIL ; PERMEABILITY ; SOLIDIFICATION ; ACCUMULATION ; DISSIPATION |
| WOS Research Area | Engineering ; Oceanography |
| WOS Subject | Engineering, Marine ; Engineering, Ocean ; Oceanography |
| Funding Project | Fundamental Research Funds for the Central Universities |
| Funding Organization | Fundamental Research Funds for the Central Universities |
| Classification | 二类/Q1 |
| Ranking | 3+ |
| Contributor | Zhou, Mozhen |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94861 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Minist Educ, Beijing 100044, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Han, Shichong,Zhou, Mozhen,Zhang, Dingli,et al. Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2024,12,3,:21. |
| APA | Han, Shichong,Zhou, Mozhen,Zhang, Dingli,漆文刚,Xue, Chaodong,&Fang, Qian.(2024).Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach.JOURNAL OF MARINE SCIENCE AND ENGINEERING,12(3),21. |
| MLA | Han, Shichong,et al."Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach".JOURNAL OF MARINE SCIENCE AND ENGINEERING 12.3(2024):21. |
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