| Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed |
| Gao FP(高福平) ; Wang N; Li JH; Han XT; Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.; Gao, FP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
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| 发表期刊 | CANADIAN GEOTECHNICAL JOURNAL
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| 2016
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| 卷号 | 53期号:11页码:1822-1830 |
| ISSN | 0008-3674
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| 摘要 | As offshore exploitation moves to deeper waters, ocean currents become the prevailing hydrodynamic loads on pipelines, and at the same time a sloping seabed is always encountered. The prediction of lateral soil resistance is vital in evaluating pipeline on-bottom stability. Unlike previous pipe-soil interaction models used mainly for horizontal seabed conditions, a pipe-soil interaction model for current-induced downslope and upslope instabilities is proposed by using the limit equilibrium approach. The Coulomb's theory of passive earth pressure for the sloping seabed is incorporated in the derivation. The model verification with existing full-scale tests shows good agreement between the experimental results and predicted ones. Parametric study indicates that the effect of slope angle on pipeline lateral soil resistance is significant in the examined range of slope angle from -15 degrees to 15 degrees. The critical pipeline embedment and corresponding passive pressure decrease approximately linearly with increasing slope angle. |
| 关键词 | Submarine Pipeline
On-bottom Stability
Sandy Seabed
Analytical Study
Pipe-soil Interaction
Sloping Seabed
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| DOI | 10.1139/cgj-2016-0071
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000387763600006
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| 关键词[WOS] | submarine pipeline
; on-bottom stability
; sandy seabed
; analytical study
; pipe-soil interaction
; sloping seabed
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| WOS研究方向 | Engineering
; Geology
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| WOS类目 | Engineering, Geological
; Geosciences, Multidisciplinary
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| 项目资助者 | Major State Basic Research Development Program of China (973 Program) [2014CB046204]
; National Natural Science Foundation of China [11232012, 11372319]
; Youth Innovation Promotion Association CAS
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| 课题组名称 | LMFS流固土耦合力学(LHO)
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| 论文分区 | 二类
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/59953
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| 专题 | 流固耦合系统力学重点实验室
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| 通讯作者 | Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.; Gao, FP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China. |
推荐引用方式
GB/T 7714 |
Gao FP,Wang N,Li JH,et al. Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed[J]. CANADIAN GEOTECHNICAL JOURNAL,2016,53,11,:1822-1830.
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| APA |
高福平,Wang N,Li JH,Han XT,Gao, FP ,&Gao, FP .(2016).Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed.CANADIAN GEOTECHNICAL JOURNAL,53(11),1822-1830.
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| MLA |
高福平,et al."Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed".CANADIAN GEOTECHNICAL JOURNAL 53.11(2016):1822-1830.
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