Fenómenos de inundación subterránea asociados a las crecidas del río Ebro en la ciudad de Zaragoza
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Abstract
En este trabajo se estudia desde un punto de vista cuantitativo la respuesta
hidráulica del acuífero aluvial urbano de Zaragoza a las crecidas del
río Ebro con el objetivo del estudio de fenómenos de inundación subterránea.
La simulación de dicha respuesta mediante un modelo numérico de
flujo ha hecho posible evaluar la interacción del nivel freático con las estructuras
subterráneas próximas al río Ebro. Los resultados obtenidos han
sido validados con afecciones documentadas demostrando la utilidad del
modelo.Además, de estos resultados se desprende que un total de 107 edificios
son susceptibles de interaccionar con el agua subterránea donde las
estructuras pueden llegar a ser sometidas a presiones hidrostáticas de hasta
0,7 kg·cm-2 dependiendo de la profundidad de la estructura y de la crecida
considerada
The objective of this work is to study groundwater inundation phenomena in the metropolitan area of Zaragoza as a consequence of Ebro river flood events. A groundwater flow numerical model has been used to simulate the hydraulic response of the urban groundwater body to flood events in order to quantify the groundwater-building basements interaction. The model developed has been validated with damage documented proving its utility. The results showed that 107 buildings are vulnerable to groundwater inundation and that the structures affected may experience a pressure load up to 0.7 kg·cm-2 depending on the structure depth and the flood event considered
The objective of this work is to study groundwater inundation phenomena in the metropolitan area of Zaragoza as a consequence of Ebro river flood events. A groundwater flow numerical model has been used to simulate the hydraulic response of the urban groundwater body to flood events in order to quantify the groundwater-building basements interaction. The model developed has been validated with damage documented proving its utility. The results showed that 107 buildings are vulnerable to groundwater inundation and that the structures affected may experience a pressure load up to 0.7 kg·cm-2 depending on the structure depth and the flood event considered







