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conference paper

Innovative methods to release fine sediments from seasonal reservoirs

De Cesare, Giovanni  
•
Manso, Pedro  
•
Chamoun, Sabine  
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2018
Proceedings of the 26th International Congress on Large Dams, ICOLD
26th International Congress on Large Dams, ICOLD

The papers present three innovative solutions for fine sediment manage- ments in seasonal reservoirs, which are at different stages of maturity. Operational reservoir stirring using jet-like inflows may facilitate sediment routing, at no addi- tional cost and without water losses. Forced stirring, using the SEDMIX device, has shown very promising results in laboratory and from computational modelling and is now entering the phase of proof-of-concept at prototype scale. Sediment venting through the bottom outlets has been object of extensive research, allowing this solution to be consistently integrated in design criteria from now onwards. Future work is required to complete the development of the first two solutions, both in terms of physical principles (inlet/outlet jet-flows) and prototype scale-up (SEDMIX). Regarding venting, compiling data of field operations is the next logical steps in view of obtaining adequate feedback on the water volumes consumed as function of venting efficiency, as well as downstream impacts in terms of released sediment concentration.

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Type
conference paper
DOI
10.1201/9780429465086-40
Author(s)
De Cesare, Giovanni  
Manso, Pedro  
Chamoun, Sabine  
Guillén Ludeña, Sebastián  
Amini, Azin  
Schleiss, Anton  
Date Issued

2018

Publisher

CRC Press/Balkema

Published in
Proceedings of the 26th International Congress on Large Dams, ICOLD
Total of pages

13

Start page

612

End page

624

Note

[1219]

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
PL-LCH  
Event nameEvent placeEvent date
26th International Congress on Large Dams, ICOLD

Vienna, Austria

July 1-7, 2018

Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/148147
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