| Experimental study of pullout capacity of plate anchors shallowly embedded in hydrate bearing sediments | |
Liu F; Sun HY; Jung JW; Zhang XH(张旭辉) ; Ju X
| |
| Source Publication | OCEAN ENGINEERING
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| 2019-02-01 | |
| Volume | 173Pages:548-555 |
| ISSN | 0029-8018 |
| Abstract | Plate anchors are commonly used in mooring systems of offshore facilities for gas and oil production in deep and ultra-deep water. They may encounter hydrate-bearing sediments widespread in marine continental margins. The pullout capacity of square anchors embedded shallowly in a hydrate-bearing sand is investigated with small-scale model tests using tetrahydrofuran (THF) hydrate as the substitute of gas hydrate. The results show that the pullout capacity of the anchors increases with the increase of the anchor width and the burial depth. The pullout capacity of the anchors can be estimated by a dimensionless breakout factor. This factor increases with the increase of the burial depth ratio (defined as the ratio of the burial depth to the width of a plate anchor Hydrate dissociation brings detrimental effects on the pullout capacity of the anchors. The pullout capacity of the anchors drops to 0.3% of the initial value after the hydrates dissociate. This pronounced reduction highlights the need for further investigation on the effect of oceanic hydrate dissociation on engineering performance of offshore facilities as a result of natural or anthropologic perturbation. |
| Keyword | Pullout capacity Plate anchor Gas hydrate Physical model test Floating offshore platform |
| DOI | 10.1016/j.oceaneng.2019.01.014 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000460709700041 |
| WOS Keyword | LOWER-BOUND SOLUTIONS ; UPLIFT CAPACITY ; BONDED ANCHORS ; STRIP ANCHORS ; BEHAVIOR ; DEFORMATION ; STABILITY ; CLAY |
| WOS Research Area | Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography |
| WOS Subject | Engineering ; Oceanography |
| Funding Organization | National Nature Science Foundation of China [41572267, 51639008, 51239010] ; Fundamental Research Funds for the Central Universities |
| Classification | 一类 |
| Ranking | 4 |
| Contributor | Liu, F |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/78449 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.{Liu, Fang} Tongji Univ, State Key Lab Disaster Reduct Civil Engn, Shanghai, Peoples R China 2.{Liu, Fang} Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai, Peoples R China 3.{Sun, Haoyu、Ju, Xin} Tongji Univ, Dept Geotech Engn, Shanghai, Peoples R China 4.{Jung, Jongwon} Chungbuk Natl Univ, Sch Civil Engn, Cheongju, South Korea 5.{Zhang, Xuhui} Chinese Acad Sci, Inst Mech, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Liu F,Sun HY,Jung JW,et al. Experimental study of pullout capacity of plate anchors shallowly embedded in hydrate bearing sediments[J]. OCEAN ENGINEERING,2019,173:548-555.Rp_Au:Liu, F |
| APA | Liu F,Sun HY,Jung JW,张旭辉,&Ju X.(2019).Experimental study of pullout capacity of plate anchors shallowly embedded in hydrate bearing sediments.OCEAN ENGINEERING,173,548-555. |
| MLA | Liu F,et al."Experimental study of pullout capacity of plate anchors shallowly embedded in hydrate bearing sediments".OCEAN ENGINEERING 173(2019):548-555. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2019025.pdf（1527KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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