3. Content
• Introduction Deltares
• Introduction flood protection NL
• IJkdijk research + smart levee concept, combining
measurement technology and dike technology
• DAM software: Dike Analyses Module
How to use the data for optimisation and forecasting?
• Conclusion
7. North-South Underground line
Hydraulic & geotechnical engineering
• Strategic advisor and second opinions
• Support for risk-driven approach
8. Singapore Marina Bay
Hydrological sciences / Environmental sciences & eco-engineering
• Marina Bay: from estuary to freshwater reservoir
• Objective: an operational water quality management system
• Collaboration with the Singapore Public Utilities Board
9. Mekong Delta Plan Vietnam
Hydrological sciences / Environmental sciences & eco-engineering
• Flood precautions, river basin management,
water quality and salt intrusion
• Context: Global Water Programme
• Dutch government partnered with Dutch Engineering Firms
10. Palm Island, Dubai
Hydraulic engineering / Geo-engineering / Eco-engineering
• Man-made peninsula measuring 4 x 4 km
• Advice about coastal defence and erosion, water circulation, water
quality, site preparation, compression and earthquake precautions
11. Flood forecasting for USA
Hydrological sciences / System informatics
Support for National Weather Service and Forecasting Centres
during implementation of their own system based on Delft-FEWS
14. Sea defences
Sea Dike
Large heights
Long outer slope
Extreme loading condition
during storm at sea
(several hours)
Wave attack
14
15. River dikes/levees
Long stretches
With / without fore land
Extreme loading condition during high
river level (several days, time
dependent flow)
Development of pore pressure in and
underneath dike
Houses on and behind the dike
15
16. Canal dikes
Small dimensions
Water level almost constant
Difference between daily and extreme
conditions (relatively) small
(stationary flow)
Loading conditions during extreme
rainfall or drought (peat) and
external actions
16
17. Failure modes of levees
Height is important, but….
1953
Overflow Overtopping
Other failure modes matter also. Slope stability inwards Slope stability outwards
Seepage face erosion Piping/Heave (internal erosion)
Liquefaction Revetment failure
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19. Smart levee concept
. Combining dike & sensor technology for floodrisk management
and real-time prognoses of dike stability
. Use information also to optimize levee maintenance and levee
improvement programmes
IJkdijk
20. The IJkdijk project: full scale field research
Double goal of the IJkdijk experiments:
. Testing of new sensor and remote sensing technologies for
Smart Levee concept
. Increase knowledge on failure mechanisms
History of tests:
.
. 2007
2008
project start-up, opening by Minister (wave overtopping test)
Stability Test (6m high, 100m long levee)
.
. 2009
2012
Piping Tests (seepage erosion, 2x2 full-scale tests)
All-in-one tests (seepage erosion, micro/macro stability,
piping prevention measures)
. 2012 Innovative piping (seepage) preventing techniques.
IJkdijk
21. All in One - Sensor Validation Test
15 commercial companies and 4 research organisations
from all around the world cooperating in this field test
Goal: can measurements predict dike failure?
26. Result: automated
levee assessment
• Regular assessment by law in
accordance with prescribed
schematization by codes and
standards
• Platform allows fully automated
assessment of a levee system
27. FEWS-DAM: real time forecasting of levee strength
When clicking on a dot, a new window
will pop up. This window displays the
water height and probability of failure
for the failure mechanism piping (see )
Color Range to display Color of dots depends on
probability of failure calculated probability of failure.
27
28. Conclusion
• Climate change the Netherlands are facing major new
challenges on flood protection
• First key: New measurement technology in the dike (fibre optics,
micronano sensors) and remote sensing (LIDAR, SAR, ….)
providing real-time observations.
• Second key: data-model integration. DAM already improves the
cost effectiveness of the levee life cycle management for:
• Maintenance and planning
• Assessment (5-yearly checkup)
• Reinforcement and design
• Third key: DAM connected to Flood Early Warning Systems
(FEWS) provides real-time prediction of failure as a decision
support tool for floodrisk management.
29. And will this be the future of flood protection?
Thank you for your attention
