ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

High Sediment Concentrations Require High In-Channel/Supply of Sediment

by Thomas E. Lisle, USDA Forest Service, Arcata, CA, USA,



Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract:

Flows with high sediment concentrations (greater than 10 percent by weight) most commonly occur either as debris flows in steep channels throughout the world, or as hyperconcentrated flows in alluvial channels in dry climates with local, intense rainfall. Debris flows often originate in colluvium-filled bedrock hollows that gradually fill with debris and then suddenly flush. Hyperconcentrations in desert alluvial channels can be achieved only by flowing some distance over channels that have accumulated fine sediment, because hillslope runoff produces concentrations no greater than about 10 percent.

Subject Headings: Sediment | Channel flow | Debris | Alluvial channels | Solids flow | Runoff | Sediment transport

Services: Buy this book/Buy this article

 

Return to search