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Geosciences 2017, 7(3), 74; doi:10.3390/geosciences7030074

Experimental Investigation of Debris-Induced Loading in Tsunami-Like Flood Events

1
Department of Civil Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada
2
Department of Civil and Environmental Engineering, Waseda University, Tokyo 169-8555, Japan
3
Department of Urban and Civil Engineering, Tokyo City University, Tokyo 158-8557, Japan
4
Ludwig-Franzius-Institute for Hydraulic, Estuarine and Coastal Engineering, Leibniz Universität Hannover, Hannover 30167, Germany
5
School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, ON K1N 6N5, Canada
*
Author to whom correspondence should be addressed.
Received: 12 June 2017 / Revised: 9 August 2017 / Accepted: 14 August 2017 / Published: 25 August 2017
(This article belongs to the Special Issue Interdisciplinary Geosciences Perspectives of Tsunami)
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Abstract

Debris loads during flood events have been well-documented by forensic engineering field surveys of affected communities. Research has primarily focused on debris impact loading and less emphasis has been placed into quantifying the loads and effects associated with debris damming, which occurs when solid objects accumulate at the front of structures. The formation of the debris dam has been shown to results in increased drag forces, backwater rise, and flow accelerations which can influence the stability of the structure. This study examined the formation of a debris dam in steady-state conditions of debris common to flood-prone communities. The study determined that the hydraulic conditions, in particular flow velocity, influenced the formation of the debris dam. Additionally, the study examined the influence of the blockage ratio on the backwater rise as well as the drag coefficient. View Full-Text
Keywords: debris damming; debris loads; floods; natural disaster; tsunami; coastal engineering; steady-state debris damming; debris loads; floods; natural disaster; tsunami; coastal engineering; steady-state
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Stolle, J.; Takabatake, T.; Mikami, T.; Shibayama, T.; Goseberg, N.; Nistor, I.; Petriu, E. Experimental Investigation of Debris-Induced Loading in Tsunami-Like Flood Events. Geosciences 2017, 7, 74.

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