Investigating the performance of floodway in an extreme flood event

Lokuge, Weena and Setunge, Sujeeva and Karunasena, Warna (2014) Investigating the performance of floodway in an extreme flood event. In: 1st International Conference on Infrastructure Failures and Consequences (ICFC 2014), 16-20 Jul 2014, Melbourne, Australia .

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Resilience of critical infrastructure such as roads, telecommunications and power is vital in support activities for disaster response and recovery. In the event of natural disasters such as the Queensland floods, resilient roads were critical to survival and safety, as well as to the health and security of the region. Disaster damage to road structures such as bridges, culverts and floodway significantly increases the vulnerability of communities. This research paper investigates the damage caused by the recent floods in Queensland on the floodway. Floodway in Lockyer Valley Regional council (LVRC) area in Queensland has been selected as a case study. LVRC has identified a major need to re-examine the design of flood-ways, which have to be designed to be submerged during a flood and return to complete functionality after the flood water subsides. In 2011 flood, about 58% of the floodway were damaged in LVRC area. Many of the flood-ways were damaged during the period of submergence and are currently the weakest links in Lockyer Valley roads after a flood. There are no standard design guidelines for these structures accepted at national level.
In this case study, data such as the dimensions, materials used (concrete, gravel with concrete overlay), culvert details and the type of road where the floodway are situated will be collected. Inspection of damaged floodway revealed that the damage due to the floods was mainly due to the excessive debris load and impact load. This paper aims at developing a strategy for flood-way design considering impact loading and debris loading by using a detailed analysis of flood-ways in this region.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Speech)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2014 RMIT University. Permanent restricted access to published version in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 14 Aug 2014 10:32
Last Modified: 09 Jun 2017 00:17
Uncontrolled Keywords: disaster; resilience; vulnerability; flood-ways
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090505 Infrastructure Engineering and Asset Management
09 Engineering > 0905 Civil Engineering > 090502 Construction Engineering
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering

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