SCOUR AROUND CIRCULAR BRIDGE PIERS AT HIGH FROUDE NUMBERS

The results of laboratory experiments on scour around circular piers in cohesionless bed material at high Froude numbers, F, up to 1.5 are presented. The scour depths in sediment transport regime (F is greater than F sub c) first slightly decreases and then increases with the increase in the Froude number. A formula to predict the scour depth at Froude numbers (F-F sub c) is equal to or greater than 0.15, is developed. The limitations of some of the existing predictors of local scour are discussed, and a new formula to predict the maximum clearwater scour is proposed. (FHWA)

  • Corporate Authors:

    University of Iowa, Iowa City

    Iowa Institute of Hydraulic Research, 300 South Riverside Drive
    Iowa City, IA  United States  52242-1585

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Jain, S C
    • Fischer, E E
  • Publication Date: 1979-4

Media Info

  • Pagination: 67 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00308511
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-79-104 Final Rpt., FCP 35H1-022
  • Contract Numbers: DOT-FH-11-9276
  • Files: TRIS, USDOT
  • Created Date: Apr 22 1980 12:00AM