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Modeling Debris flow behavior in a geotechnical centrifuge
University of Canterbury, Christchurch, New Zealand.
University of Canterbury, Christchurch, New Zealand.
Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.ORCID iD: 0000-0003-1935-1743
Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
2011 (English)In: Italian Journal of Engineering Geology & the Environment, 339-349 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we examine the effect of flow massand moisture content on debris flow velocity, discharge,and runout using a series of smallscale flumetests in a geotechnical centrifuge. We found that anincrease in mass and an increase in moisture contentincreased peak velocity during down-slope movement.However, the effect of increased moisture contentis much more pronounced than that of increasedmass. The maximum cross-sectional area observeddid not depend on mass or moisture content, althoughmay have been affected by the flow rate entering thecentrifuge. Consequently, flow velocity largely determinedthe peak discharge of each flow. An increasein moisture content increased the mobility of the flowin terms of depositional area and runout. Further, therunout of the centre of mass of the flows appears tobe linearly related to the momentum of flow materialentering the flume.

Place, publisher, year, edition, pages
2011. 339-349 p.
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-66008DOI: 10.4408/IJEGE.2011-03.B-039OAI: oai:DiVA.org:ltu-66008DiVA: diva2:1147924
Available from: 2017-10-09 Created: 2017-10-09 Last updated: 2017-11-24Bibliographically approved

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