Comparación de metodologías de modelación de inundaciones fluviales en 1D (HEC-RAS) y (RIVER 2D). Caso de estudio: Río Negro, en un tramo de 3500 metros a su paso por el municipio de Útica – Cundinamarca.
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Teniendo en cuenta la gran afectación socioeconómica que han dejado los eventos naturales de inundación en todo el mundo es necesario desarrollar herramientas, tales como programas de modelación de eventos de inundaciones de todo tipo, a fin de evaluar el comportamiento del flujo del agua en determinados tamos de un rio, quebrada, canal o cuenca hidrográfica, buscando tener información de hasta dónde llegarán los niveles de agua, si un determinado caudal alcanzará un valor muchísimo mayor al convencional, queriendo conocer si el cauce o lecho fluvial principal de determinado tramo es capaz de soportar la carga hidráulica proveniente de los diferentes eventos o fenómenos naturales hidrológicos. De manera que, se busca conocer cuáles zonas serán inundadas y en qué extensión, teniendo en cuenta la naturaleza del cauce, la pendiente, qué material de arrastre podría traer, la vegetación existente, básicamente condiciones naturales del entorno del canal, a fin de realizar mapas de riesgo por inundaciones y poder tomar medidas preventivas que eviten afectar la humanidad y la infraestructura existente. Así mismo, se espera poder estar un paso adelante respecto a la planificación en la construcción de futuras obras civiles, ya sean puentes, sistemas de drenaje, bocatomas, proyectos de vivienda y demás. De la misma manera se deben considerar estas afectaciones para adelantar trabajos de exploración minera que hoy día son necesarios para el desarrollo de la humanidad. En este trabajo se evaluarán dos de las herramientas disponibles para realizar modelación de inundaciones fluviales, tanto unidimensional (Hec-Ras) como en bidimensional (River-2D), con el objetivo de evaluar simultáneamente los resultados de cada uno de los programas empleados, su asertividad, su facilidad de interpretación, entre otros.
Considering the large socioeconomic involvement that have left natural flood events worldwide is necessary to develop tools, such as programs modeling flood events of all kinds, in order to assess the behavior of water flow in certain sections of a river, stream, canal, looking to have information on how far water levels reach if a given flow rate will be worth much more than the conventional, wanting to know if the main river channel or bed of particular stretch is capable of withstand the hydraulic load from different hydrological events or natural phenomena. Thus, it seeks to know which areas will be flooded and to what extent, given the nature of the channel, the slope, which dredged material could bring, existing vegetation, basically natural conditions of the channel environment, in order to perform flood risk maps and to take preventive measures to avoid affecting humanity and existing infrastructure. Likewise, it is expected to be one step ahead on planning the construction of future civil works, whether bridges, drainage systems, intakes, and other housing projects. Likewise these effects should be considered to further mineral exploration work today are necessary for the development of humanity. In this paper we evaluate two of the available tools for modeling river flooding, both one-dimensional (Hec-Ras) and two-dimensional (2D River), in order to simultaneously evaluate the results of each of the programs used, their assertiveness, ease of interpretation.
Considering the large socioeconomic involvement that have left natural flood events worldwide is necessary to develop tools, such as programs modeling flood events of all kinds, in order to assess the behavior of water flow in certain sections of a river, stream, canal, looking to have information on how far water levels reach if a given flow rate will be worth much more than the conventional, wanting to know if the main river channel or bed of particular stretch is capable of withstand the hydraulic load from different hydrological events or natural phenomena. Thus, it seeks to know which areas will be flooded and to what extent, given the nature of the channel, the slope, which dredged material could bring, existing vegetation, basically natural conditions of the channel environment, in order to perform flood risk maps and to take preventive measures to avoid affecting humanity and existing infrastructure. Likewise, it is expected to be one step ahead on planning the construction of future civil works, whether bridges, drainage systems, intakes, and other housing projects. Likewise these effects should be considered to further mineral exploration work today are necessary for the development of humanity. In this paper we evaluate two of the available tools for modeling river flooding, both one-dimensional (Hec-Ras) and two-dimensional (2D River), in order to simultaneously evaluate the results of each of the programs used, their assertiveness, ease of interpretation.