Show simple item record

dc.contributor.authorLi, Shuai
dc.contributor.authorZhou, Gordon G. D.
dc.contributor.authorChen, Xiaoqing
dc.contributor.authorSong, Dongri
dc.date2019-06
dc.date.accessioned2019-08-21T15:49:12Z
dc.date.available2019-08-21T15:49:12Z
dc.descriptionFor full 7th DFHM proceedings see: https://hdl.handle.net/11124/173051
dc.description.abstractDebris flows in mountainous regions are of great concern because they present a serious threat to the residents and infrastructures in downstream areas as a result of their long runout distances. However, the mechanisms of debris-flow runout are still unclear because of many factors influencing debris-flow mobility. This study focuses on two major factors, namely, particle size and slurry viscosities. A series of experimental model tests were conducted in a rectangular inclined flume connected to a final horizontal plain. Results reveal that the debris-flow mobility is significantly influenced by the slurry viscosities. The runout distance initially increases and then decreases as the slurry viscosities increase. Also, runout distance for debris flows contain large particle sizes is longer than that of debris flows contain small particle sizes. The depositional widths are almost unchanged in the experimental test, which suggests that the debris flows are constrained by the fixed channel boundaries. The results of this study can improve the understanding the behavior and the deposition features of debris flows.
dc.identifier.urihttps://hdl.handle.net/11124/173198
dc.identifier.urihttp://dx.doi.org/10.25676/11124/173198
dc.languageEnglish
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.publisher.originalAssociation of Environmental and Engineering Geologists
dc.relation.ispartofProceedings of the Seventh International Conference on Debris-flow Hazards Mitigation, Golden, Colorado, USA, June 10-13, 2019
dc.relation.ispartofAssociation of Environmental and Engineering Geologists ; special publication 28
dc.rightsCopyright of the original work is retained by the authors.
dc.subjectDebris flow
dc.subjectFlume experiments
dc.subjectRunout distance
dc.subjectFluid viscosity
dc.subjectGrain size
dc.titleDebris-flow deposition : effects of fluid viscosity and grain size
dc.typeProceedings


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record