Modelamiento hidráulico del río Virú tramo 13+100 al 22+809 con el software Iber con fines de propuesta de defensas ribereñas
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Authors
Dominguez Fernández, Kandy Kely
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Abstract
El presente estudio tuvo como finalidad realizar el modelamiento hidráulico bidimensional del río Virú, en el tramo comprendido entre las progresivas 13+100 y 22+809, utilizando el software Iber versión 3.2.2, con el objetivo de proponer estructuras de defensa ribereña que contribuyan a la reducción del riesgo frente a eventos hidrológicos extremos. Para ello, se recopiló información topográfica, hidrológica e hidráulica proveniente de vuelos LiDAR, estaciones meteorológicas e hidrométricas, y visitas de campo. Se evaluaron las características hidráulicas del cauce bajo condiciones de caudal de avenida con un periodo de retorno de 100 años. El modelamiento permitió obtener mapas de tirantes, velocidades y extensiones de inundación, identificando zonas críticas donde se superan tirantes de hasta 4.6 m y velocidades de 6.2 m/s, lo que evidencia un alto grado de vulnerabilidad en diversos sectores. Como resultado, se propuso la implementación de nueve diques de encauzamiento, diseñados y ubicados estratégicamente en los tramos más expuestos a desbordes. Estas estructuras permitirán mejorar la capacidad de conducción del cauce, proteger las áreas agrícolas y pobladas colindantes, y reducir significativamente el riesgo de afectación ante crecidas. El estudio resalta la importancia de integrar el modelamiento hidráulico como herramienta para la planificación de infraestructuras de mitigación, promoviendo una gestión sostenible y técnica del territorio en el ámbito de la cuenca del río Virú.
The present study aimed to develop a two-dimensional hydraulic modeling of the Virú River, in the section between stations 13+100 and 22+809, using the Iber software (version 3.2.2), with the purpose of proposing riverbank protection structures to reduce the risk from extreme hydrological events. Topographic, hydrological, and hydraulic data were collected from LiDAR surveys, meteorological and hydrometric stations, as well as field inspections. The hydraulic characteristics of the river channel were assessed under flood discharge conditions associated with a 100-year return period. The modeling produced maps of water depths, flow velocities, and flood extents, identifying critical areas where maximum depths reach 4.6 m and velocities up to 6.2 m/s, indicating a high degree of vulnerability in several sectors. The study highlights the importance of integrating hydraulic modeling as a tool for the planning and design of mitigation infrastructure, promoting technical and sustainable territorial management within the Virú River basin. As a result, the implementation of nine channelization dikes was proposed, strategically designed and located in the most flood prone sections, to enhance the channel’s conveyance capacity, protect adjacent agricultural and populated areas, and significantly reduce the risk of flood impacts.
The present study aimed to develop a two-dimensional hydraulic modeling of the Virú River, in the section between stations 13+100 and 22+809, using the Iber software (version 3.2.2), with the purpose of proposing riverbank protection structures to reduce the risk from extreme hydrological events. Topographic, hydrological, and hydraulic data were collected from LiDAR surveys, meteorological and hydrometric stations, as well as field inspections. The hydraulic characteristics of the river channel were assessed under flood discharge conditions associated with a 100-year return period. The modeling produced maps of water depths, flow velocities, and flood extents, identifying critical areas where maximum depths reach 4.6 m and velocities up to 6.2 m/s, indicating a high degree of vulnerability in several sectors. The study highlights the importance of integrating hydraulic modeling as a tool for the planning and design of mitigation infrastructure, promoting technical and sustainable territorial management within the Virú River basin. As a result, the implementation of nine channelization dikes was proposed, strategically designed and located in the most flood prone sections, to enhance the channel’s conveyance capacity, protect adjacent agricultural and populated areas, and significantly reduce the risk of flood impacts.
Description
Universidad Nacional Agraria La Molina. Facultad de Ingeniería Agrícola. Departamento Académico de Recursos Hídricos
Keywords
Modelamiento hidráulico
Citation
Date
2025
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