EROSION OF COHESIVE SEDIMENTS AS RATE PROCESS

The purpose of the present technical note is to provide additional data to show the applicability of rate process theory to studies of erosion rates of cohesive sediments. Samples of an illitic clay (Grundite) were placed in a recirculating water tunnel. Water velocity was increased in steps, until a measurable erosion rate was obtained. Temperature was then increased in 5 degree C increments. The results confirmed earlier research which noted a temperature effect on erosion rate. The experimental activation emergies determined compare well with previously published values and suggest that particle interactions are essentially solid to solid. The strength of particle contacts that probably involve a number of bonds will depend on the magnitude of attractive forces that in turn depend on physicochemical factors such as salinity and pH.

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00196137
  • Record Type: Publication
  • Report/Paper Numbers: ASCE 14556 Proceeding
  • Files: TRIS
  • Created Date: Oct 17 1979 12:00AM