EFFECT OF SPUR DIKES ON FLOW THROUGH CONTRACTIONS

THE GEOLOGICAL SURVEY HAS CONDUCTED TESTS IN THE HYDRAULICS LABORATORY AT THE GEORGIA INSTITUTE OF TECHNOLOGY TO DETERMINE THE DISCHARGE CHARACTERISTICS OF HIGHWAY BRIDGES WITH SPUR DIKES. THE ADDITION OF SPUR DIKES TO A CONTRACTION REDUCES THE RESISTANCE TO FLOW AND INCREASES THE DISCHARGE COEFFICIENT 33 PER CENT FOR ELLIPTICAL DIKES, 23 PER CENT FOR STRAIGHT DIKES, AND 27 PER CENT FOR TIMBER DIKES. ADJUSTMENT FACTORS FOR THE DISCHARGE COEFFICIENT HAVE BEEN DEFINED FOR THE ADDITION OF ELLIPTICAL AND STRAIGHT DIKES TO SPILL THROUGH CONTRACTIONS FOR VARIOUS CHANNEL CONTRACTIONS AND RATIOS OF DIKE LENGTH TO BRIDGE OPENING. /AUTHOR/

  • Supplemental Notes:
    • Vol 91,no HY4,PROC PAPER 4412,PP 155-165
  • Authors:
    • Hedman, E R
  • Publication Date: 1965-7

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  • Accession Number: 00204080
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 5 1994 12:00AM