Experimental Investigations of Debris Dynamics over a Horizontal Plane
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 143, Issue 3
Abstract
This study presents the results of an experimental research program dealing with spatial debris motion on a horizontal apron depicting a typical harbor wharf. Accordingly, scaled-down 6.1-m (20-ft) shipping containers were equipped with a novel yet nonintrusive real-time tracking system and motion sensors. The instrumentation allowed for the spatiotemporal tracking of debris specimens moving across the apron while entrained by an incoming tsunami-like broken bore. The system proved its capabilities and accuracy; this was particularly challenging since this was the first time the system was used in water. The experiments involved using various numbers of shipping containers that were either arranged in one layer or stacked in two layers. In addition, the effect of different numbers of container rows was also investigated to study the influence of the overall container count and placement with respect to their longitudinal displacement and dispersion (spreading) across the apron. Linear relationships were derived for both parameters, suggesting potential guidelines for future design efforts and disaster risk reduction and mitigation.
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Acknowledgments
The authors acknowledge the support of several funding organizations that supported this research program: the European Union; Research Executive Agency through a Marie Curie International Outgoing Fellowship within the 7th European Community Framework Programme; the Discovery Grant awarded by the Natural Science and Engineering Research Council; and the financial support of the Kajima Foundation, Japan. The manufacturing and operation of the tsunami wave basin was financially supported by the Strategic Research Foundation Grant-Aided Project for Private Universities (Grant S1311028) from the Japanese Ministry of Education and by Waseda University. Additional thanks are given to René Klein from the Franzius-Institute for Hydraulic, Estuarine and Coastal Engineering workshop at Leibniz University Hannover, Germany, who manufactured all of the debris specimens used in this study.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 143 • Issue 3 • May 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Dec 21, 2015
Accepted: Aug 5, 2016
Published online: Oct 13, 2016
Discussion open until: Mar 13, 2017
Published in print: May 1, 2017
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