Louvain-la-Neuve -Nov 2003 Dam-break floods and sedi ment movement 1 IMPACT - WP4 IMPACT - WP4 Dam-break induced Dam-break induced floods floods and sediment movement and sediment movement Progress report Université catholique de Louvain Yves Zech, Benoit Spinewine and Nicolas le Grelle IMPACT Investigation of extreme flood Processes and uncertainty
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Louvain-la-Neuve - Nov 2003 Dam-break floods and sediment movement 1 IMPACT - WP4 Dam-break induced floods and sediment movement IMPACT - WP4 Dam-break.
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Louvain-la-Neuve -Nov 2003
Dam-break floods and sediment movement
1
IMPACT - WP4IMPACT - WP4
Dam-break inducedDam-break induced floodsfloodsand sediment movementand sediment movement
Progress report
Université catholique de Louvain
Yves Zech, Benoit Spinewine and Nicolas le Grelle
IMPACTInvestigation of extreme flood Processes and uncertainty
Louvain-la-Neuve -Nov 2003
Dam-break floods and sediment movement
2
Aims and objectivesAims and objectives
Improve the prediction
of the motion of sediments
in association with catastrophic floods
Louvain-la-Neuve -Nov 2003
Dam-break floods and sediment movement
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Issues of IMPACT WP4 researchIssues of IMPACT WP4 research
• Extreme flows
intense erosion and solid transport
• Intense sediment transport
affects flood-wave prediction– Arrival time– Maximum water level– Morphological changes
Louvain-la-Neuve -Nov 2003
Dam-break floods and sediment movement
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Scope of the researchScope of the research
• Near-field – Uniform debris flow– Severe transient debris flow
• Far-field – Intense transport– Bank erosion and geomorphic changes
Louvain-la-Neuve -Nov 2003
Dam-break floods and sediment movement
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Near field : problems to be solvedNear field : problems to be solved
Dam-break flow in initially prismatic valley, with uniform (and graded) material• form of the benchmark : 2003 tests• launched in September > November ? (3)
– Benchmark BM Chat : Large scale dam-break experiments with uniform material (LRH Châtelet)• form of this benchmark ? (4)