FLOOD BARRIERS - AN ADAPTATION MEASURE TO CLIMATE …
Transcript of FLOOD BARRIERS - AN ADAPTATION MEASURE TO CLIMATE …
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International ConferenceADAPT to CLIMATE
Nicosia, Cyprus, 27-28 March 2014
FLOOD BARRIERS -AN ADAPTATION MEASURE TO
CLIMATE CHANGE
Toumazis A.D.Dion. Toumazis & Associates
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OUTLINE
Flood Hazard– Precipitation (inland)– Waves (coastal)
Flood Risk– Water Management - Drainage Systems/ Protection– Relocate (Away)– Raise (Higher)– Living with floods
Adapt to Flooding– Flood Barrier Technology
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Wave Run-up exceeds Crest LevelWave Overtopping
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FLOOD HAZARD – COASTAL FLOODING
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Wave Overtopping Factors
- Sea Level- Extreme Wave Conditions
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SUDS
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WATER MANAGEMENT SUSTAINABLE URBAN DRAINAGE SUSTEMS
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CITY DRAINAGE SYSTEMS
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Location Design Storm frequencya
Return period (1 in “n” years)
Rural Areas 1 in 1
Residential Areas 1 in 2
City centres/ industrial/
commercial areas
1 in 5
Underground railway/
underpasses
1 in 10
a For these design storms no surcharge shall occur
Recommended design frequencies for use with simple design methods
EN 752 Drain and Sewer systems outside buildings
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LIVING WITH FLOODS (City Level)
LondonThames Barrier
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Self Closing Flood Barrier (SCFB)TM Passive Flood Barrier Floodbreak ®
Self Operating Flip Up Barrier - Aquafragma
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ADAPT
Engineering solutions for a safer and better environment
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CONCLUSIONS
Flooding: was, is and will always be a Certainty
Climate Change will cause more frequent and more severe flooding
Implement Good Storm Water Management• Collect and reuse water at source (rain water harvesting)• Delay and reduce surface water run-off (SUDS)• Collect and transport run-off (predict / derive flow rate)• Prepare for living with floods
Technology is available Flood Barriers is a promising adaptation measure
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