Scour Around Bridge Piers at High Flow Velocities

by Subhash C. Jain, (M.ASCE), Assoc. Prof. and Research Engr.; Energy Div., Inst. of Hydr. Research, Univ. of Iowa, Iowa City, Iowa,
Edward E. Fischer, (A.M.ASCE), Grad. Student; Inst. of Hydr. Research, Univ. of Iowa, Iowa City, Iowa,


Serial Information: Journal of the Hydraulics Division, 1980, Vol. 106, Issue 11, Pg. 1827-1842


Document Type: Journal Paper

Abstract:

The results of laboratory experiments on scour around circular piers in cohesionless bed material at high flow velocities are presented. A special technique is used to measure scour depths. The scour depth in the sediment transport regime first decreases and then increases with increasing velocity. A formula to predict scour depth for flows with Froude numbers is developed.



Subject Headings: Scour | Fluid velocity | Piers | Bridges | Sediment transport | Bed materials | Froude number

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