Dynamic response of OWT tripod pile foundation in clay considering scour
文献类型：期刊论文
| 作者 | Cheng, Xinglei1,2; Li, Maolin2; Naggar, M. Hesham El3; Xu, Guofang1; Liu, Zhongxian2; Zhang, Lingbo2 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 174页码:15 |
| 关键词 | OWT Tripod pile foundation Scouring Seismic loads Bounding surface model |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2024.106647 |
| 英文摘要 | Tripod-supported offshore wind turbine (OWT) foundation must withstand wind, wave, and seismic loads. In addition, it may be threatened by scouring during its service life, which could affect its bearing capacity and the overall OWT dynamic response. This study develops a three-dimensional numerical model of OWT tripod pile foundation to investigate scour effects. The numerical model incorporates a simplified single bounding surface model to simulate the dynamic stress-strain response of clay soil. The results revealed that scouring can reduce the first-order natural frequency of tripod pile-OWT system; however, the reduction usually does not lead to resonance within the 1P frequency range. Nonetheless, as the scour depth increases under wind and wave loads, the horizontal displacement of the wind turbine structure increases monotonously; however, its peak acceleration increases initially then decreases slightly as the scour depth continues to increase. Under seismic loading only, the OWT response exhibits complex evolution pattern as the scour depth increases. On the other hand, the foundation horizontal displacement and rotation angle increase significantly under combined wind-wave-seismic loads when the scouring depth reaches three times the pile diameter. Finally, the scouring depth has a relatively small impact on the foundation vertical displacement. |
| 资助项目 | National Natural Science Foundation of China[52108334] ; National Natural Science Foundation of China[52378361] ; National Natural Science Foundation of China[12102295] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering[SKLGME021027] ; Tianjin Municipal Natural Science Foundation[22JCYBJC01360] ; Tianjin Municipal Natural Science Foundation[23JCQNJC00850] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001290538600001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42208]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xu, Guofang |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 2.Tianjin Chengjian Univ, Key Lab Soft Soil Engn Character & Engn Environm T, Tianjin, Peoples R China 3.Western Univ, Dept Civil & Environm Engn, London, ON, Canada |
| 推荐引用方式 GB/T 7714 | Cheng, Xinglei,Li, Maolin,Naggar, M. Hesham El,et al. Dynamic response of OWT tripod pile foundation in clay considering scour[J]. COMPUTERS AND GEOTECHNICS,2024,174:15. |
| APA | Cheng, Xinglei,Li, Maolin,Naggar, M. Hesham El,Xu, Guofang,Liu, Zhongxian,&Zhang, Lingbo.(2024).Dynamic response of OWT tripod pile foundation in clay considering scour.COMPUTERS AND GEOTECHNICS,174,15. |
| MLA | Cheng, Xinglei,et al."Dynamic response of OWT tripod pile foundation in clay considering scour".COMPUTERS AND GEOTECHNICS 174(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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