Journal
JOURNAL OF HYDROLOGY
Volume 460, Issue -, Pages 156-159Publisher
ELSEVIER
DOI: 10.1016/j.jhydrol.2012.06.034
Keywords
Grade control structures; Local scour; Gene-expression programming; Water resources engineering
Funding
- Universiti Sains Malaysia [304.PREREDAC.6035262]
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Local scour is crucial in the degradation of river bed and the stability of grade control structures, stilling basins, aprons, ski-jump bucket spillways, bed sills, weirs, check dams, etc. This short communication presents gene-expression programming (GEP), which is an extension to genetic programming (GP), as an alternative approach to predict scour depth downstream of sills. Published data were compiled from the literature for the scour depth downstream of sills. The proposed GEP approach gives satisfactory results (R-2 = 0.967 and RMSE = 0.088) compared to the existing predictors (Chinnarasri and Kositgittiwong, 2008) with R-2 = 0.87 and RMSE = 2.452 for relative scour depth. (C) 2012 Elsevier B.V. All rights reserved.
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