Evaluation through 2D Modelling of Scour around Piers with Collars in the CÁCeres Bridge in Piura, PeruShamir Luliquis, Samuel Vinces and Rubén MogrovejoE3S Web Conf., 422 (2023) 03005DOI: https://doi.org/10.1051/e3sconf/202342203005