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Scour at Wide Piers and Long Skewed Piers (2011) / Chapter Skim
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Pages 48-50

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From page 48...
... Plots of underprediction error versus total error for the laboratory data and underprediction error for field data versus total error for laboratory data along with the error statistics calculations assisted in the ranking of the equations. The equations of Sheppard and Miller (2006)
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From page 49...
... = Projected Width * Shape Factor Shape Factor = 1, circular α = skew angle in radians Flow Skew Angle Only limited data exist for the effects of flow skew angle on equilibrium local scour depths.
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From page 50...
... 2. Experiments to obtain equilibrium scour depths, and scour evolution rates, at rectangular piers, aligned with and skewed to the flow, under controlled laboratory conditions.
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Key Terms

  • local scour
  • scour evolution
  • total error
  • equilibrium scour
  • skew angle

  • predictive methods
  • scour depth
  • sediment properties
  • scour depths
  • field data

  • versus total
  • bridge piers
  • evolution rates
  • predictive equations
  • error versus

  • equilibrium local
  • evolution predictive
  • laboratory data
  • flow skew
  • rium local

  • mathematical model
  • nchrp report
  • flow conditions
  • evolution equation
  • data versus

  • scour equations
  • recommended equilibrium


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