Evaluation of Local Scour along the Base of Longitudinal Training Walls

This study proposes a new empirical model for estimating local scour along the base of longitudinal training walls for granular riverbeds. The model’s performance was rigorously assessed through experiments conducted in an open-channel flume, encompassing variations in granulometric characteristics, slope, and flow rates. The investigation involved a comparative analysis of six commonly employed equations for scour estimation. The results consistently demonstrated a tendency of the selected equations to overestimate scour depth within the longitudinal structures. In contrast, the new proposed equation considers factors such as the well-graded granular bedding represented by the Coefficient of uniformity (Cu) and the embedment of the longitudinal wall. This allows for a more robust identification of the scour behavior of longitudinal walls. This research enhances our comprehension of local scour in riverbeds. It provides engineers and researchers with a valuable tool for more accurate predictions, thereby contributing to the improved design and maintenance of river environment structures.

• Autores: Cely Calixto, Nelson Javier; Galvis-Castaño, Alberto; Carrillo Soto, Gustavo Adolfo
• Tipo de recurso: Article of journal
• Fecha de publicación: 2023
• Institución: Universidad Francisco de Paula Santander
• Repositorio: Repositorio Digital UFPS
• Idioma: eng
• OAI Identifier: oai:repositorio.ufps.edu.co:ufps/6738
• Acceso en línea: https://repositorio.ufps.edu.co/handle/ufps/6738; https:// doi.org/10.3390/w15224001
• Palabra clave: river bank protection; longitudinal training walls; sediment transport; scour depth estimation
• Rights: openAccess
• License: https://creativecommons.org/licenses/by/4.0/