UNIFIED VIEW OF WASH LOAD AND BED MATERIAL LOAD

This paper presents a new generalized model of flow-sediment interaction. The behavior of the wash load and of the suspended bed-material load can then result as special cases of the new model. The latter flows the lines of Einstein's original probabilistic model except that interparticle forces of mechanical and physicochemical nature have been introduced and that the flow-induced forces on the individual grains or flocs were assumed to have an upper and lower bound. It is shown that the actual wash load may consist of two distinct types of sediment which may coexist: (a) Bed load function for a limited range of flow conditions whereas above that range it behaves as a wash load; and (b) the other never has a bed load function. It is shown that the latter consists predominantly of silt and clay, i.e., of sediment finer than 0.06 mm, a fact consistently observed in alluvial channels. /ASCE/

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Partheniades, E
• Publication Date: 1977-9

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 1037-57
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 103
  • Issue Number: HY9
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Aquatic life; Flow; Hydraulics; Sediments; Soil particles
• Old TRIS Terms: Fluvial hydraulics
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00164900
• Record Type: Publication
• Report/Paper Numbers: ASCE 13215
• Files: TRIS
• Created Date: Nov 23 1977 12:00AM