Contraction Rate of the Flow, Velocities, River Bed Stratification Impact on the Scour at the Guide Banks

River Sedimentation : Proceedings of the 13th International Symposium on River Sedimentation (ISRS 2016) 2017
Boriss Gjunsburgs, Mārīte Bižāne-Rožnovska

ontraction of the flow leads to the flow modification; at the heads of the guide banks take place streamline concentration, sharp drop in water level, local increase in velocity, vortex structure, increased turbulence, local scour and as well general scour up and down of the bridge. The differential equation for the bed sediment movement under clear-water conditions is used, and a method for computing the scour development during multiple floods is presented.The method is confirmed by experimental data.

Keywords
scour, contraction rate,velocity,river bed, stratification
Hyperlink
http://www.crcnetbase.com/doi/abs/10.1201/9781315623207-31

Gjunsburgs, B., Bižāne, M. Contraction Rate of the Flow, Velocities, River Bed Stratification Impact on the Scour at the Guide Banks. In: River Sedimentation : Proceedings of the 13th International Symposium on River Sedimentation (ISRS 2016), Germany, Stuttgart, 19-22 September, 2016. Leiden: CRC Press/Balkema, 2017, pp.153-153. ISBN 978-1-138-02945-3. e-ISBN 978-1-315-62320-7.

Publication language
English (en)