Detailed two-dimensional modelling of a complex bridge arrangement – McKinlay River No. 2 Bridge, Alice Springs to Darwin railway

Karunarathna, K. N. C., Hart, L. and McGrath, T. (2014). Detailed two-dimensional modelling of a complex bridge arrangement – McKinlay River No. 2 Bridge, Alice Springs to Darwin railway. In: Hubert Chanson and Luke Toombes, Hydraulic structures and society - Engineering challenges and extremes. 5th IAHR International Symposium on Hydraulic Structures, Brisbane, Australia, (1-8). 25-27 June 2014. doi:10.14264/uql.2014.45

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Author Karunarathna, K. N. C.
Hart, L.
McGrath, T.
Title of paper Detailed two-dimensional modelling of a complex bridge arrangement – McKinlay River No. 2 Bridge, Alice Springs to Darwin railway
Conference name 5th IAHR International Symposium on Hydraulic Structures
Conference location Brisbane, Australia
Conference dates 25-27 June 2014
Proceedings title Hydraulic structures and society - Engineering challenges and extremes
Journal name ISHS 2014 - Hydraulic Structures and Society - Engineering Challenges and Extremes: Proceedings of the 5th IAHR International Symposium on Hydraulic Structures
Place of Publication Brisbane, Australia
Publisher The University of Queensland
Publication Year 2014
Year available 2014
Sub-type Fully published paper
DOI 10.14264/uql.2014.45
Open Access Status DOI
ISBN 9781742721156
Editor Hubert Chanson
Luke Toombes
Start page 1
End page 8
Total pages 8
Language eng
Abstract/Summary The Alice Springs – Darwin Railway Project involved the construction of 1420 km of new standard gauge track between Alice Springs and Darwin, including the McKinlay River No. 2 Bridge. During the 2006, 2007 and 2008 flood seasons, significant scour occurred around the McKinlay River No. 2 Bridge piers, raising concerns regarding the continuing stability of the structure. The site has complex geometry, with the river approaching the crossing at a significant angle and the remains of the original railway bridge just upstream of the new structure. Owing to the complex arrangement, a detailed 2-D hydrodynamic SOBEK model of the bridge crossing was developed to inform the design of scour protection works at the site. The model was used to analyse a number of options to reduce the potential for scour, and allowed for the scour protection works to be optimised for conditions at the site. The designed protection works were constructed in 2011, and have performed well in several subsequent flow events.
Keyword Bridge scour analysis
Hydrodynamic modelling
SOBEK
XP-RAFTS
Floodplain modelling
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

 
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Created: Tue, 13 May 2014, 15:10:36 EST by Anthony Yeates on behalf of Scholarly Communication and Digitisation Service