Modified Laursen Method for Estimating Bed-Material Sediment Load

Abstract

The sediment transport function developed by Emmett M. Laursen was adopted for the Arkansas River navigation project because it expresses transport rate using terms that permit separating the effects of hydraulic and sediment parameters. However, in attempting to reproduce measured data from the lower Arkansas River, the Laursen function gave results that were systematically low. The same trend appeared when the function was applied to Missouri River data. Therefore, Laursen's functional relationship f((sq. rt.(Tan sub o/rho)/w) was replotted for the Arkansas River planning studies based on Arkansas River data. Subsequently, another graph of the relationship was developed using data from several other rivers. The work reported in this study is an effort to collapse those functional relationships into a single graph. The approach was to introduce a correction coefficient based on Froude number.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1993
Accession Number
ADA274385

Entities

People

  • Edward B. Madden

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Arkansas
  • Arkansas River
  • Civil Engineering
  • Engineers
  • Flood Control
  • Fluid Mechanics
  • Froude Number
  • Grain Size
  • Materials
  • Mechanics
  • Missouri
  • Missouri River
  • Rivers
  • Sedimentation
  • Sediments
  • Transport Ships
  • United States

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  • Approximation Theory.
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Naval Personnel Management