Rheological analysis of fine-grained natural debris-flow material

By:  and 
Edited by: French Richard H.


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Experiments were conducted on large samples of fine-grained material (???2mm) from a natural debris flow using a wide-gap concentric-cylinder viscometer. The rheological behavior of this material is compatible with a Bingham model at shear rates in excess of 5 sec. At lesser shear rates, rheological behavior of the material deviates from the Bingham model, and when sand concentration of the slurry exceeds 20 percent by volume, particle interaction between sand grains dominates the mechanical behavior. Yield strength and plastic viscosity are extremely sensitive to sediment concentration.
Publication type Conference Paper
Publication Subtype Conference Paper
Title Rheological analysis of fine-grained natural debris-flow material
ISBN 0872627713
Year Published 1990
Language English
Publisher Publ by ASCE
Publisher location Boston, MA, United States
Larger Work Title Hydraulics/Hydrology of Arid Lands
First page 225
Last page 231
Conference Title Proceedings of the International Symposium on Hydraulics/Hydrology of Arid Lands and 1990 National Conference on Hydraulic Engineering
Conference Location San Diego, CA, USA
Conference Date 30 July 1990 through 2 August 1990
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