Page - 848 - in Book of Full Papers - Symposium Hydro Engineering

COMMISSION INTERNATIONALE DES GRANDS BARRAGES ------- VINGT-SIXIÈME CONGRÈS DES GRANDS BARRAGES Autriche, juillet 2018 ------- HOW A PROBABILISTIC APPROACH CAN IMPROVE CMD DESIGNS ABBAS MOHAMMADIAN Project Manager, ABFAN Consulting Engineers AHMAD GHEZEL AYAGH Managing Director, ABFAN Consulting Engineers IRAN 1. INTRODUCTION The main branches of Cemented Material Dams (CMDs) are shown in Fig.1. Although CMD allows both the construction of admirable gravity dam bodies on weak rock foundations and the employment of low specific materials as aggregates for the dam body, it has more uncertainties than conventional RCC and CVC regarding design. On the other hand, one of the biggest advantages in designing CMDs is the uniform and typical geometry of the dam section, which permits the development of parametric solutions. Therefore, Performance-Based Design (PBD) using a probabilistic approach could be a proper strategy for this type of dam. In this paper, the advantages of this method are described. Fig. 1 Cemented Material Dams 848