| 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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| Source Publication | CANADIAN GEOTECHNICAL JOURNAL
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| 2016 | |
| Volume | 53Issue:11Pages:1822-1830 |
| ISSN | 0008-3674 |
| Abstract | 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. |
| Keyword | Submarine Pipeline On-bottom Stability Sandy Seabed Analytical Study Pipe-soil Interaction Sloping Seabed |
| DOI | 10.1139/cgj-2016-0071 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000387763600006 |
| WOS Keyword | submarine pipeline ; on-bottom stability ; sandy seabed ; analytical study ; pipe-soil interaction ; sloping seabed |
| WOS Research Area | Engineering ; Geology |
| WOS Subject | Engineering, Geological ; Geosciences, Multidisciplinary |
| Funding Organization | Major State Basic Research Development Program of China (973 Program) [2014CB046204] ; National Natural Science Foundation of China [11232012, 11372319] ; Youth Innovation Promotion Association CAS |
| Department | LMFS流固土耦合力学(LHO) |
| Classification | 二类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59953 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | 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. |
| Recommended Citation 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. |
| 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. |
| 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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| IMCAS-J2016-329.pdf（1310KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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