IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Improvement of bed load transport and flood protection in accordance with the extension of a hydropo...
Improvement of bed load transport and flood protection in accordance with the extension of a hydropower plant
Author : SILKE KAINZ(1) & MICHAEL HENGL(2)
The impact of the reconstruction of an old weir at the river Saalach at the border of Austria to Germany was investigated. At present there is a serious flood protection problem upstream of the existing weir due to insufficient bed load transport capacity. A physical model representing 1.6 kilometers of the river was built. On a scale of 1:60 the river reach, the surrounding floodplain and the weir were constructed. The main target of the physical model was to confirm the improved transport of bed load over the reconstructed weir whilst keeping or improving the flood characteristics. The comparison of the present and the future conditions showed that in the upstream head of the weir the water-table of the 100-year flood fell. The higher gradient due to the new weir construction ensures a better bed load transport, which in the physical model resulted in a higher bed load output and a lower riverbed upstream of the weir compared to the present conditions. Overall it can be shown that enlargement of hydropower plants, bed load transport and flood protection are not opposed.
File Size : 751,732 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 01/10/2015
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