Document of bibliographic reference 243651

BibliographicReference record

Type

Bibliographic resource

Type of document

Book chapters

Type of document

Conference paper

BibLvlCode

AM

Title

Erosion and sedimentation near the renovated weir lock complex of Asper in Belgium

Abstract

In the weir lock complex of Asper along the river Scheldt in Belgium, two tainter gate weirs were constructed in a new bypass channel, which came into operation in 2009. After the flood wave event of November 2010 a bathymetric survey around the weir lock complex revealed several locations with erosion and sedimentation. The origin and evolution of this erosion and sedimentation was investigated by analysing the regular bathymetric monitoring data, computing the equilibrium profile for the new bypass channel and numerical modelling of the flow patterns around the weir lock complex. The analysis of the available bathymetric data indicates that the scour hole at the downstream junction of the bypass channel and the river channel migrates towards upstream and towards the right bank.Above this scour hole, the numerical modelling reveals the presence of a helical flow pattern, influenced by the unequal bed level and increased due to the presence of the scour hole.

Bibliographic citation

Verelst, K.; Vandenbruwaene, W.; Peeters, P.; Heredia Gomez, M.; De Mulder, T. (2015). Erosion and sedimentation near the renovated weir lock complex of Asper in Belgium, in: Cheng, L. et al. (Ed.) Proceedings of the 7th International Conference on Scour and Erosion - ICSE 2014, The University of Western Australia, Perth, Australia, 2-4 December 2014. pp. 535-544