Sanvitale, N., Bowman, E. orcid.org/0000-0001-7868-6688 and Cabrera, M.A. (2021) Experimental investigation on the impact dynamics of saturated granular flows on rigid barriers. Environmental and Engineering Geoscience, 27 (1). pp. 127-138. ISSN 1078-7275
Abstract
Debris flows involve the high-speed downslope motion of rocks, soil, and water. Their high flow velocity and high potential for impact loading make them one of the most hazardous types of gravitational mass flows. This study focused on the roles of particle size grading and degree of fluid saturation on impact behavior of fluid-saturated granular flows on a model rigid barrier in a small-scale flume. The use of a transparent debris-flow model and plane laser-induced fluorescence allowed the motion of particles and fluid within the medium to be examined and tracked using image processing. In this study, experiments were conducted on flows consisting of two uniform and one well-graded particle size gradings at three different fluid contents. The evolution of the velocity profiles, impact load, bed normal pressure, and fluid pore pressure for the different flows were measured and analyzed in order to gain a quantitative comparison of their behavior before, during, and after impact.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 Association of Environmental and Engineering Geologists. This is an author-produced version of a paper subsequently published in Environmental and Engineering Geoscience. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Debris Flows; Engineering Geology; Geotechnical; Physical Modelling; Landslides |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Science Research Council EP/M017427/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 12 Jan 2021 12:19 |
Last Modified: | 07 May 2021 13:34 |
Status: | Published |
Publisher: | Geological Society of America |
Refereed: | Yes |
Identification Number: | 10.2113/EEG-D-20-00033 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:169398 |