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The influence of pier geometry and debris characteristics on the accumulation of woody debris at bridge piers

The influence of pier geometry and debris characteristics on the accumulation of woody debris at bridge piers
The influence of pier geometry and debris characteristics on the accumulation of woody debris at bridge piers
This paper analyses the influence of the geometry of bridge piers and the geometry of the supplied debris on the formation and growth of wood debris jams at bridge piers. A total of 162 laboratory experiments have been conducted. Experimental results showed that the maximum size of debris jams formed by the accumulation of cylindrical debris (i.e. wooden dowels) is smaller than that of jams formed by natural non-branched wood of irregular shape. In addition, experiments with branched debris resulted in jams that were significantly smaller and less stable than those with non-branched natural debris. Finally, comparison of experiments conducted with six different pier shapes indicate that the shape of a pier has negligible effects on the maximum size of a woody debris jam. The only exception to this observation was for square piers, which showed slightly larger debris jam sizes than the other types of piers tested.
0733-9429
Panici, Diego
2e32ed2c-3d44-46e4-9a4a-e5935050539a
De Almeida, Gustavo
f6edffc1-7bb3-443f-8829-e471b6514a7e
Panici, Diego
2e32ed2c-3d44-46e4-9a4a-e5935050539a
De Almeida, Gustavo
f6edffc1-7bb3-443f-8829-e471b6514a7e

Panici, Diego and De Almeida, Gustavo (2020) The influence of pier geometry and debris characteristics on the accumulation of woody debris at bridge piers. Journal of Hydraulic Engineering, 146 (6). (doi:10.1061/(ASCE)HY.1943-7900.0001757).

Record type: Article

Abstract

This paper analyses the influence of the geometry of bridge piers and the geometry of the supplied debris on the formation and growth of wood debris jams at bridge piers. A total of 162 laboratory experiments have been conducted. Experimental results showed that the maximum size of debris jams formed by the accumulation of cylindrical debris (i.e. wooden dowels) is smaller than that of jams formed by natural non-branched wood of irregular shape. In addition, experiments with branched debris resulted in jams that were significantly smaller and less stable than those with non-branched natural debris. Finally, comparison of experiments conducted with six different pier shapes indicate that the shape of a pier has negligible effects on the maximum size of a woody debris jam. The only exception to this observation was for square piers, which showed slightly larger debris jam sizes than the other types of piers tested.

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JHE paper_revision - Accepted Manuscript
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Accepted/In Press date: 3 December 2019
e-pub ahead of print date: 30 March 2020
Published date: 1 June 2020
Additional Information: This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers.

Identifiers

Local EPrints ID: 436613
URI: http://eprints.soton.ac.uk/id/eprint/436613
ISSN: 0733-9429
PURE UUID: eb1e71c1-a8b6-4422-93ea-2db2d3f44fec
ORCID for Diego Panici: ORCID iD orcid.org/0000-0001-7394-7981
ORCID for Gustavo De Almeida: ORCID iD orcid.org/0000-0002-3291-3985

Catalogue record

Date deposited: 18 Dec 2019 17:30
Last modified: 07 Oct 2020 05:41

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