Optimisation de la largeur en crête des petits barrages et retenues collinaires

Abstract

The crest width of the small dams is estimated by the different existing formulas which mainly depend on the height of the reservoir. In most cases, these formulas give controversial results which lead to a disagree between the project owner, the engineers and the designers. This study aims to develop a consensual approach by performing a calculation code on small dams in northern part of Algeria, initially based on empirical formulas, which let to identify several mathematical relationships. A comparative analysis based on various significant parameters allowed defining an optimal relation to guide managers’ decisions to choose the crest width dimension.