Next Article in Journal
Factors Affecting Water Quality and the Structure of Zooplankton Communities in Wastewater Reservoirs of the Right-Bank Sorbulak Canal System (South-Eastern Kazakhstan)
Next Article in Special Issue
Risk Propagation Evolution Analysis of Oil and Gas Leakage in FPSO Oil and Gas Processing System by Mapping Bow-Tie into Directed Weighted Complex Network
Previous Article in Journal
Evaluation of Pandanus Trees as a Means of Eco-DRR against Storm Surge Wave on Saint Martin’s Island, Bangladesh
 
 
Article

Experimental Study on the Influence of Pipeline Vibration on Silty Seabed Liquefaction

1
Key Laboratory of Submarine Geosciences and Prospecting Techniques (Ministry of Education), Ocean University of China, Qingdao 266100, China
2
College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
3
Engineering Research Center of Marine Petroleum Development and Security Safeguard (Ministry of Education), Ocean University of China, Qingdao 266100, China
4
Shengli Oilfield Technology Inspection Center, SINOPEC, Dongying 257000, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Zengkai Liu
Water 2022, 14(11), 1782; https://doi.org/10.3390/w14111782
Received: 3 May 2022 / Revised: 28 May 2022 / Accepted: 30 May 2022 / Published: 1 June 2022
(This article belongs to the Special Issue Reliability and Safety in Ocean and Coastal Engineering)
Free-spanning submarine pipelines are usually affected by vortex-induced vibration (VIV). Such vibration could influence the liquefaction of the supporting soil at both ends of the free spans and could have catastrophic consequences, including the failure of the local seabed and the displacing, sinking, or floating of pipelines. The influence of pipeline vibration on soil liquefaction has not been studied sufficiently. Therefore, we explored the influence of vortex-induced pipeline vibration on the excess pore pressure of silty soil around a pipeline using flume experiments. Our results showed that pipeline vibration could induce the buildup of excess pore-water pressure, even without wave loading. A fully liquefied zone was found close to the pipeline, where excess pore pressure reached the soil liquefaction criterion, which was surrounded by a partially liquefied zone. The extent of liquefaction depended on the vibration conditions and the weight and burial depth of the pipeline. The pipeline vibration amplitude increased after soil liquefaction. Unlike wave-induced liquefaction, pipeline-induced vibration liquefaction occurred at a critical value smaller than the initial mean normal effective stress. Considering the possibility of pipeline-vibration-induced seabed liquefaction, conventional approaches could underestimate the potential risks to pipeline stability and result in unsafe maintenance practices. View Full-Text
Keywords: soil liquefaction; suspended pipeline; vortex-induced vibration; seabed scour; flume experiment; silt soil liquefaction; suspended pipeline; vortex-induced vibration; seabed scour; flume experiment; silt
Show Figures

Figure 1

MDPI and ACS Style

Xu, J.; Xu, X.; Zhang, Y.; Pu, J.; Dong, J.; Wang, C.; Li, G.; Li, A.; Zhang, S.; Zhang, Y. Experimental Study on the Influence of Pipeline Vibration on Silty Seabed Liquefaction. Water 2022, 14, 1782. https://doi.org/10.3390/w14111782

AMA Style

Xu J, Xu X, Zhang Y, Pu J, Dong J, Wang C, Li G, Li A, Zhang S, Zhang Y. Experimental Study on the Influence of Pipeline Vibration on Silty Seabed Liquefaction. Water. 2022; 14(11):1782. https://doi.org/10.3390/w14111782

Chicago/Turabian Style

Xu, Jishang, Xingyu Xu, Yaqi Zhang, Jinjing Pu, Jiangfeng Dong, Chunlai Wang, Guangxue Li, Anlong Li, Shaotong Zhang, and Yaxin Zhang. 2022. "Experimental Study on the Influence of Pipeline Vibration on Silty Seabed Liquefaction" Water 14, no. 11: 1782. https://doi.org/10.3390/w14111782

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop