Scour Around Circular Bridge Piers at High Froude Numbers

Details

• Creators:
  Jain, Subhash C. ; Fischer, Edward E.
• Corporate Creators:
  Iowa Institute of Hydraulic Research
• Contributors:
  Jones, S.
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Scour
  • Bridge piers
  • Froude number
  • Cohesionless materials
  • Sediments
• Publication/ Report Number:
  FHWA-RD-79-104
• Resource Type:
  Tech Report
• Right Statement:
  Public Domain
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Contracting Officer:
  Jones, S.
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration
• Abstract:
  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>F⌄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⌄C) ≥ 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.
• Format:
  PDF
• Funding:
  DOT-FH-11-9276
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/75257/dot_75257_DS1.pdf
• File Type:
  [PDF - 2.45 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:17ff7d0a01bd005f00a95ab9f9a93c4e2a805086eed76e9bd17c31922d4efbf88d3056bd368c0a50c941457abc45c6e0f1f4d7bf12f019542294c388efc9d787