MODELING GENERAL SCOUR AT BRIDGE CROSSINGS

Modeling of general scour at bridge crossings using a mathematical model for water and sediment routing is described. For a given bridge configuration, general scour that results from imbalance in sediment supply and transport capacity of the river is evaluated based on river channel evolution reflecting the flow and sediment-transport processes. Two case studies are presented to illustrate the prediction of general scour caused by man-made factors including sand mining and flow constriction by a bridge. Depth of general scour is found to be sensitive to channel width; therefore, width formation of the alluvial river plays an important role in scour development. (Author)

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1984/950/950v2-027.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=MODELING+GENERAL+SCOUR+AT+BRIDGE+CROSSINGS&author=H.+Chang&publication_year=1984
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/3090036593
• Supplemental Notes:
  • This paper appeared in Transportation Research Record Number 950, Volume 2, Second Bridge Engineering Conference, conducted by the Transportation Research Board and the Federal Highway Administration, September 24-26, 1984. Publication of this paper sponsored by Committee on Hydrology, Hydraulics, and Water Quality. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Chang, Howard H
• Conference:
  • Bridge Engineering Conference, 2nd, 1984, Washington, DC, USA
• Publication Date: 1984

Media Info

• Media Type: Print
• Features: Figures; Maps; Photos; References;
• Pagination: pp 238-243
• Monograph Title: Second bridge engineering conference. volumes 1 and 2
• Serial:
  • Transportation Research Record
  • Issue Number: 950
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Flow; Mathematical models; Scour; Sediments; Stream channels; Width
• Subject Areas: Bridges and other structures; Design; Highways; Hydraulics and Hydrology; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00390835
• Record Type: Publication
• ISBN: 03090036593
• Files: TRIS, TRB
• Created Date: Dec 30 1984 12:00AM