中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 流固耦合系统力学重点实验室(2012-)
Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach

文献类型：期刊论文

作者Han, Shichong3; Zhou, Mozhen3; Zhang, Dingli3; Qi WG(漆文刚)1,2; Xue, Chaodong3; Fang, Qian3
刊名JOURNAL OF MARINE SCIENCE AND ENGINEERING
出版日期2024-03-01
卷号12期号:3页码:21
关键词extreme wave loading wave-induced seabed liquefaction non-Darcy flow model wave-seabed-structure interactions non-cohesive seabed
DOI10.3390/jmse12030373
通讯作者Zhou, Mozhen(mzzhou@bjtu.edu.cn)
英文摘要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.
分类号二类/Q1
WOS关键词INDUCED PORE PRESSURE ; NUMERICAL-MODEL ; MOMENTARY LIQUEFACTION ; NONLINEAR-WAVE ; SAND ; SOIL ; PERMEABILITY ; SOLIDIFICATION ; ACCUMULATION ; DISSIPATION
资助项目Fundamental Research Funds for the Central Universities
WOS研究方向Engineering ; Oceanography
语种英语
WOS记录号WOS:001192479000001
资助机构Fundamental Research Funds for the Central Universities
其他责任者Zhou, Mozhen
源URL[http://dspace.imech.ac.cn/handle/311007/94860]  
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.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China;
3.Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Minist Educ, Beijing 100044, Peoples R China;
推荐引用方式
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.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。