Investigation of scour mitigation methods for critical road structures

Chou Pei-Chen, Peggy (2016) Investigation of scour mitigation methods for critical road structures. [USQ Project]

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Abstract

The flood events that occurred in 2011 and 2013 in Queensland are notable for their devastating outcomes and damages to critical road structures. Bridges are necessary for the local community to travel and provide disaster relief during times of need. Therefore, it is important to identify methods that prevent bridge scour.

To identify these countermeasures, a literature review of critical infrastructure scour prevention method was conducted. Methods that are appropriate were then analysed using the hydraulics software HEC-RAS. The Tenthill Creek Bridge was chosen as the framework of the analysis. Bridge scour depths were modelled and each method was compared. Combined with the HEC-RAS analysis, the feasibility analysis shows that a combination of collaring, riprap and wing walls is the most cost effective in decreasing the scour depths at piers and abutments.


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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Engineering (Honours) Major Civil Engineering project
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Supervisors: Lokuge, Weena; Wahalathantri, Buddhi
Date Deposited: 19 Jul 2017 01:55
Last Modified: 19 Jul 2017 23:58
Uncontrolled Keywords: scour mitigation; road structures
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090502 Construction Engineering
URI: http://eprints.usq.edu.au/id/eprint/31385

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