A "state of the art" report on the subject of local scour around cylindrical piers is given here. After a description of the scouring process, a critical review of literature on model and field data is presented, and the empirical data are compared with theoretical considerations. The final result is a set of design suggestions together with possibilities for protection against scour.Sommaire Ce rapport donne le point des connaissances dans le domaine de l'érosion locale en autour des piles cylindriqucs: analyse du processus d'érosion, étude critique des résultats expérimentaux modèlc et nature disponibles dans Ia littérature, confrontation des résultats aux schémas theoriques. En conclusion est proposée une loi pour la prevision de la profondeur d'affouillement, ainsi que des dispositifs de protection.
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