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THE APPLICABILITY OF OPEN-SLOT GROUNDSILLS IN TRAINED RIVER TO ENCOURAGE THE FORMATION OF MEANDERING
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 701P0904, . (doi: 10.13031/2013.17395)
Authors: C.-C. Wu, J.-J. Lin, Y.-C. Lin, C.-M. Yeh
Keywords: Groundsills, Meandering, Sinuosity, River training
The objective of this research is to experimentally assess the applicability of open-slot groundsills in trained streams to encourage the formation of meandering. Mechanics of meander formation as well as the sinuosity index in the settings of serial open-slot groundsills at different channel gradients, sediment diameters, offset-interval ratios, and flow discharges is discussed. Selective sediment transport as well as deposition occurred on the outskirts of thalweg and floodplain was observed after the installation of open-slot groundsills. Both processes encourage the formation of alternate bars and meanders, which result in greater diversity in trained streams.(Download PDF) (Export to EndNotes)