Optimizing the sustainability of sediment bypass tunnels to counter reservoir sedimentation
- In order to prevent reservoir sedimentation, sediment bypass tunnels can be an efficient countermeasure restoring sediment continuity of impounded rivers. Although supercritical open channel flow conditions in these tunnelsprevent tun-nel blockage, in combination with the high bypassed sediment volume it may lead tosevere abrasion damages on inverts. Consequently,wear termed hydroabra-sionoccurs. Based on laboratoryexperiments, a theoretical model was devel-oped to predict abrasion rates and service life timeof sediment bypass tunnels. Insituexperiments are further conducted for model calibration to provide an abrasion prediction approach for field applications.Finally,recommendations concerning the hydraulic design of the tunnel as well as the structural design ofthe invertareprovided.
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| Author: | C. Auel, M. Hagemann, I. Albayrak, R.M. Boes |
|---|---|
| URN: | urn:nbn:de:hbz:836-opus-151518 |
| DOI: | https://doi.org/10.25974/fhms-15151 |
| Parent Title (German): | Proc. 25th ICOLD Congress, Q99 R31, Stavanger, Norway |
| Publisher: | ICOLD |
| Document Type: | Article in Conference Proceedings |
| Language: | English |
| Date of Publication (online): | 2022/08/22 |
| Year of first Publication: | 2015 |
| Publishing Institution: | FH Münster - University of Applied Sciences |
| Release Date: | 2022/09/02 |
| First Page: | 431 |
| Last Page: | 452 |
| Institutes: | Bauingenieurwesen (BAU) |
| Publication list: | Auel, Christian |
| Licence (German): |  Zweitveroeffentlichung |
