Evaluation of Mini-Groynes as a Countermeasure for Reducing Local Scour in Longitudinal River Walls with Well-Graded Granular Beds Using Flow-3D and AHP

被引：0

作者：

del Rio-Puerta, Ana Fernanda ^{[1
]}

Cely-Calixto, Nelson Javier ^{[1
]}

Cortes-Zambrano, Melquisedec ^{[2
]}

机构：

[1] Univ Francisco de Paula Santander, Fac Ingn, Grp Invest HYDROS, Ingn Recursos Hidraul, Cucuta, Colombia

[2] Univ Santo Tomas, Fac Ingn Civil, Grp Invest INVICA, Tunja, Colombia

来源：

UIS INGENIERIAS | 2024年 / 23卷 / 03期

关键词：

AHP; countermeasures; efficiency; flow-3D; granular bed; hierarchy; local scour; longitudinal walls;

D O I：

10.18273/revuin.v23n3-2024005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The objective of the research is to evaluate a countermeasure for the reduction of local scour in longitudinal walls in rivers with well-graded granular beds using the Flow-3D software; The countermeasure is selected using the Analytic Hierarchy Process AHP method and is numerically modeled with slopes of 2.5% and flow rates between 0.008 and 0.03 m3/s. Using the AHP method, it is obtained that the alternative with the highest hierarchy is the mini-breakwaters, for which scenarios of 0.3, 0.45, and 0.6 m in dimension are modeled, and arranged in the direction and counterflow. The simulation in the software showed that the countermeasure of mini-breakwaters of 0.45 m in length arranged in counterflow, presented an efficiency of 75%, compared to those of 0.3 m and 0.6 m whose efficiencies are 60.69 % and 51.12% respectively. The research is a significant contribution to the approach to alternatives for protecting longitudinal walls.

引用

页码：61 / 70

页数：10