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This communication presents a graphical method simple,fast and complete, and a methodology which allow you to determine the main characteristics of the strong hike hydraulic, necessary parameters for sizing the basin of classical dissipation.
The graphical method takes into account the constraints imposed by the reality of the field or the practice,Such as the one linked to the topography of the site, the preservation of the balance of the environment as well as the side technico-economic.
This methodology is to impose the loss of load dissipated by the strong hike as hydraulic hypothesis (sizing free) to determine all the other parameters of the basin of classical dissipation.
We can impose the loss of load DH dissipated by the strong hike hydraulic, equal to a chosen value or equal to a certain percentage of the upstream load total created by the dam.
A using the parameter a dimensionless factor DH = (DH/k) , (k:critical depth), the graphical representation developed allows you to determine the other parameters,Whose product by k give the main characteristics of the strong hike hydraulic, necessary parameters for the sizing of the basin of classical dissipation.
This solution is often prosecutorial for sizing the basins of dissipation of small concrete dams or for the hillside reservoirs.
The verification of the results obtained and their comparison to data practices confirm the validity and reliability of the graphical method developed.
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