EROSION CONTROL CRITERIA FOR DRAINAGE CHANNELS

CRITERIA ARE PRESENTED FOR THE DESIGN OF OPEN CHANNELS UTILIZING ARTIFICIAL LINER MATERIALS. THE RESULTS ARE BASED UPON AN EXPERIMENTAL STUDY TO DETERMINE DESIGN CRITERIA NEEDED IN THE SELECTION OF THE MOST DESIRABLE CHANNEL TREATMENT FOR SOILS, SLOPES, AND CHANNEL FLOWS WHICH MAY OCCUR WITHIN THE HIGHWAY RIGHT-OF-WAY. EXPERIMENTATION WAS CONDUCTED IN AN OUTDOOR HYDRAULIC LABORATORY AT STATE COLLEGE, MISSISSIPPI. PORTABLE ALUMINUM FLUME WALLS WERE INSERTED VERTICALLY INTO THE SOIL TO FORM 2-FOOT WIDE CHANNELS, 60 FEET LONG ON SLOPES UP TO 12.5 PERCENT. A PUMPING SYSTEM PROVIDED FLOW RATES UP TO 11 CFS. INSTRUMENTATION WAS AVAILABLE FOR DETERMINING CHANNEL AND WATER SURFACE PROFILES AND CHANGES DUE TO EROSION AT A TEST SECTION LOCATION. IN THE COURSE OF EXPERIMENTATION TEN SOILS RANGING FROM A NONCOHESIVE SAND-GRAVEL TO AN INORGANIC CLAY WERE OBSERVED IN TEST SECTIONS UNDER TREATMENTS OF EROSIONET-315, JUTE MESH, STRANDED FIBERGLAS COVERED WITH PINNED EROSIONET, FIBERGLAS MAT, STRAW AND EROSIONET, AND EXCELSIOR MAT. ADDITIONAL TESTS WERE CONDUCTED ON BARE SOILS AND BERMUDA GRASS LINED CHANNELS. FOR EACH FLOW RATE IMPOSED UPON A TREATMENT VALUES WERE DETERMINED FOR DEPTH OF FLOW, MEAN VELOCITY, HYDRAULIC RADIUS, COEFFICIENT OF RESISTANCE, AND EROSION. FAILURE OF CHANNEL AND LINER WAS ALSO NOTED. THE DATA WERE PROCESSED FOR EACH TREATMENT AND EXPRESSED IN A FORMULA. /AUTHOR/

  • Supplemental Notes:
    • 200 Pp, 63 FIG, 14 TAB, 17 REF, 3 APP
  • Corporate Authors:

    Mississippi State University, Mississippi State

    Agricultural Experiment Station
    Mississippi State, MS  United States  39762
  • Authors:
    • Mcwhorter, J C
    • Carpenter, T G
    • CLARK, R N
  • Publication Date: 1968-3

Subject/Index Terms

Filing Info

  • Accession Number: 00204168
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 14 1994 12:00AM