Estimation of Maximum Local Scour Depths at Multiple Piles of Sea/Bay-crossing Bridges

Estimation methods of local scour depths under complex marine environment have not been well understood for bridge design and constructions. This study focuses on estimating the maximum local scour depth at multiple piles of sea/bay-crossing bridges by developing a new formula using compiled 58 laboratory data and 21 field data. Scale model experiments of three practical bridges in China (Jiashao Bridge, Hangzhou Bay Bridge, and Jintang Bridge) were first conducted, and the results were used to calibrate the proposed universal formula. This formula was developed by using dimensional analysis and considering pile dimension, pile format and type, incoming wave flow condition, wave flow characteristics (acceleration of gravity, density, and dynamic viscosity), and sediment grain size. After the parameters were calibrated, two sets of field measurement data and two independent sets of laboratory testing data of maximum local scour depth were utilized to verify the formula. The results show a relatively good match between the calculated values from the formula and the measured data from the experiment and the field. The new formula is promising to be used to predict the maximum local scour depth at piles for the design of practical sea/bay-crossing bridges in the marine environment.

• Record URL:
  https://doi.org/10.1007/s12205-018-0769-0
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/12267988
• Supplemental Notes:
  • © Korean Society of Civil Engineers and Springer-Verlag Berlin Heidelberg 2019.
• Authors:
  • Han, Haiqian
  • Chen, Yifan
  • Sun, Zhilin
• Publication Date: 2019-2

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 567-575
• Serial:
  • KSCE Journal of Civil Engineering
  • Volume: 23
  • Issue Number: 2
  • Publisher: Korean Society of Civil Engineers
  • ISSN: 1226-7988
  • EISSN: 1976-3808
  • Serial URL: http://link.springer.com/journal/12205

Subject/Index Terms

• TRT Terms: Bridge piers; Depth; Dimensional analysis; Estimating; Scour; Support piles; Tidal currents; Water waves
• Identifier Terms: Hangzhou Bay Bridge (China); Jiashao Bridge (China)
• Geographic Terms: China
• Subject Areas: Bridges and other structures; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 01695733
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 21 2019 9:55AM