REDUCTION OF LOCAL SCOUR AROUND BRIDGE PIERS USING SLOTS AND COLLARS. TECHNICAL NOTE

This study examines the use of pier slots and collars for reducing local scour at bridge piers. The efficacy of slots, of different lengths and at different angles of attack, was studied through experiments. The reduction of scour attributed to the placement of circular collars, of different sizes and at different elevations, was also investigated. Analysis of the data from the experiments as well as data from earlier studies led to an equation for the maximum scour depth around circular bridge piers fitted with collars. The equation applies to local scour of uniform-sized sediment in clear-water flow.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8672558
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Kumar, V
  • Raju, KGR
  • Vittal, N
• Publication Date: 1999-12

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 1302-05
• Serial:
  • Journal of Hydraulic Engineering
  • Volume: 125
  • Issue Number: 12
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9429
  • Serial URL: https://ascelibrary.org/journal/jhend8

Subject/Index Terms

• TRT Terms: Bridge piers; Channel flow; Equilibrium (Systems); Experiments; Prevention; Scour; Sediments
• Uncontrolled Terms: Collars; Slots
• Subject Areas: Bridges and other structures; Design; Highways; Hydraulics and Hydrology; Security and Emergencies; I24: Design of Bridges and Retaining Walls; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00779723
• Record Type: Publication
• Contract Numbers: 59609006, 59890200-3
• Files: TRIS
• Created Date: Dec 27 1999 12:00AM