Les études d'ondes de submersion des grands barrages d'EDF

The failure waves studies devoted to large dams at EDF

EDF, Laboratoire national d'hydraulique, Châtou

Abstract

The decree of may 1968 made compulsory to provide emergency plans for all the large french dams. Since that time, EDF has developed a lot of means of study of dam-break waves. The main tool is constituted by a computer code, based on the one-dimensional unsteady flow theory, and devoted to the full description of the floods. The particular features of the method are detailed, and also is the modelisation of the geometry of valleys. A view upon the experiments made to assess the method is given. Then, two auxiliary approaches are described, i.e. the scale-model tests and the two-dimensional model. Finally, a map of flooded areas is presented as an example of the results which are delivered in current study reports, and which constitute the main basis to establish the emergency plans.