Long-term settlement of deepsea pipelines on a soft clayey seabed: Poro-elasto-viscoplastic modeling
文献类型：期刊论文
| 作者 | Cheng, Jun1,2; Li, Jian3; Gao, Fu-Ping1,2 ; Yin, Zhen-Yu4
|
| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2025-07-15 |
| 卷号 | 332页码:13 |
| 关键词 | Pipe-soil interaction Subsea pipeline Soft clayey seabed Long-term settlement Soil rheology |
| ISSN号 | 0029-8018 |
| DOI | 10.1016/j.oceaneng.2025.121414 |
| 通讯作者 | Gao, Fu-Ping(fpgao@imech.ac.cn) |
| 英文摘要 | The long-term settlement of subsea pipelines on a clayey seabed is crucial for the on-bottom stability of the pipelines, especially in deep waters. In this study, a poro-elasto-viscoplastic finite element analysis is performed for predicting long-term settlement of subsea pipelines by incorporating a rheological constitutive model. A method for identifying the creep-settlement (Sc) from the total-embedment (Sk) is proposed on the basis of the obtained linear relationship between the secondary consolidation coefficient (C alpha e) of the clayey soil and the total-embedment (Sk) of the pipe. The identifying method is validated with the existing theoretical solutions and experimental data. Parametric study is then performed to investigate the key influential parameters for long-term settlement of subsea pipeline. A non-dimensional parameter Gc is introduced to quantitatively characterize the soil rheology effect on pipeline settlement. The relationship between the proportion of creep-settlement in the total-embedment (Sc/Sk) and Gc is eventually established for identifying whether the proportion of creep-settlement in the total-embedment is remarkable. |
| WOS关键词 | ULTIMATE BEARING CAPACITY ; TIME-DEPENDENT BEHAVIOR ; LINE FIELD SOLUTION ; CREEP-BEHAVIOR ; IN-SITU ; CONSOLIDATION ; SOIL ; COMPRESSIBILITY |
| 资助项目 | National Natural Science Foundation of China[12061160463] ; National Natural Science Foundation of China[52278324] ; Research Grants Council (RGC) of Hong Kong Joint Research Scheme[N_PolyU534/20] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001486848300001 |
| 资助机构 | National Natural Science Foundation of China ; Research Grants Council (RGC) of Hong Kong Joint Research Scheme |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101534]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Gao, Fu-Ping |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Jun,Li, Jian,Gao, Fu-Ping,et al. Long-term settlement of deepsea pipelines on a soft clayey seabed: Poro-elasto-viscoplastic modeling[J]. OCEAN ENGINEERING,2025,332:13. |
| APA | Cheng, Jun,Li, Jian,Gao, Fu-Ping,&Yin, Zhen-Yu.(2025).Long-term settlement of deepsea pipelines on a soft clayey seabed: Poro-elasto-viscoplastic modeling.OCEAN ENGINEERING,332,13. |
| MLA | Cheng, Jun,et al."Long-term settlement of deepsea pipelines on a soft clayey seabed: Poro-elasto-viscoplastic modeling".OCEAN ENGINEERING 332(2025):13. |
入库方式： OAI收割
来源：力学研究所
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