201
Views
0
CrossRef citations to date
0
Altmetric
Articles

Prediction of local scour depth of sea-crossing bridges based on the energy balance theory

ORCID Icon, &
Pages 2574-2587 | Received 22 Jul 2021, Accepted 08 Nov 2021, Published online: 04 Dec 2021
 

ABSTRACT

Local scour of piers is a potential danger threatening the operational safety of the sea-crossing bridge. Reliable scour depth prediction of piers can make the economic maintenance of the sea-crossing bridge. Considering the Hangzhou Bay Sea-crossing Bridge as the research prototype, based on the measured data and numerical simulation, the flow-field structure in front of the pier and the shape of the scour hole around the pier are simplified, and the prediction equation of the maximum depth of local scour is derived based on the energy balance theory. Based on the measured data, the equation is verified and compared with the local scour calculation equation in the design code, and the sensitivity of the parameters in the equation is analyzed. The results reveal that the equation is feasible and accurate and can provide guidelines for future decision-making regarding the early warning and maintenance of local scour of sea-crossing bridges.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

All data, models, and code generated or used during the study appear in the published article.

Additional information

Funding

This research was financially supported by the Key R&D Program Projects in Zhejiang Province (2019C03098), the National Natural Science Foundation of China (52078461, U1709207), and the Program for Science and Technology of Zhejiang Provincial Department of Transportation (2020062).

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.