Numerical Modeling of Submarine Pipeline Scouring under Tropical Storms

Water

Lin Chong¹  Haiyang Dong¹  Xin Meng²  Panyang Huang³ 

[1] College of Architecture and Civil Engineering, Zhejiang University, Hangzhou 310058, China;Ocean College, Zhejiang University, Hangzhou 310058, China;Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;

关键词: sediment transport;    numerical model;    typhoon;    pipelines;    local scour;   

DOI  :  10.3390/w13101425

来源: DOAJ

【 摘 要 】

Submarine pipelines are the lifelines of the national economy. Under the influence of typhoons, high-speed currents and waves continuously erode the seabed, leading to suspension or even rupture of pipelines. Therefore, it is of great importance to study the sediment transport under the action of waves and currents. A numerical model of sediment scouring and deposition combining wave and currents is established, which considered tidal current, storm surges, wind waves, and sediments in the East China Sea. Combining with the monitoring of the actual laying condition of pipelines, it is found that the area with the most serious scouring is around KP300. It is shown that the typhoon weather with high intensity and density will lead to the suspension of pipelines, which is noteworthy in the construction of marine engineering.

【 授权许可】

Unknown