Investigation of erosion rates of field samples using FDOT's enhanced sediment erosion rate flume (SERF) : [summary].

Details

• Creators:
  Bloomquist, David
• Corporate Creators:
  University of Florida
• Subject/TRT Terms:
  • Sediments
  • Erosion control
  • Computer models
  • Scour
  • Flumes
  • Shear stress
  • Field tests
  • Testing equipment
• Publication/ Report Number:
  BDK75-977-53
• Resource Type:
  Tech Report
• Geographical Coverage:
  Florida
• Corporate Publisher:
  Florida. Dept. of Transportation
• Abstract:
  The most common cause of bridge failure in ; the United States is the scouring of sediments, ; which are broadly classified as cohesionless ; (sand and gravel) and cohesive (rock, clay, sandclay mixtures). For cohesionless sediments, ; predicting scour depth and erosion rates has been ; well studied and is fairly well ; understood. However, much less is ; known about cohesive sediments, ; which still require site-specific ; measurements to determine the ; relationship between erosion rate ; and shear stress. ; In this project, University of ; Florida researchers used the ; Sediment Erosion Rate Flume ; (SERF) to measure erosion rates ; of cohesive sediments. The ; researchers made significant ; improvements to SERF, including ; pump repairs, laser system ; enhancements, installation of a ; digital video camera, updated ; graphical user interface, a rebuilt ; pump drive, and an increased ; capacity filter. The new laser ; system permitted accurate sample leveling; the ; previous ultrasonic system tended to penetrate ; cohesive sediments and give a “false bottom ; reading.” The enhanced SERF led to a number of ; important findings.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26918/dot_26918_DS1.pdf
• File Type:
  [PDF - 649.23 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:07cb5ed178596e0f4c5ab792ab59adcd6d2c70f3783df25b985f025e8dc4fb18