TY  - CONF
A1  - Auel, C.
A1  - Hagemann, M.
A1  - Albayrak, I.
A1  - Boes, R.M.
T1  - Optimizing the sustainability of sediment bypass tunnels to counter reservoir sedimentation
T2  - Proc. 25th ICOLD Congress, Q99 R31, Stavanger, Norway
N2  - 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.
Y1  - 2015
UR  - https://www.hb.fh-muenster.de/opus4/frontdoor/index/index/docId/15151
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:836-opus-151518
SP  - 431
EP  - 452
PB  - ICOLD
ER  -