Abstract

PRIETO CALDERON, José Luis et al. Dam failure Vega de Tera, hydraulic simulation of the flood propagation (Zamora, Spain). Dyna rev.fac.nac.minas [online]. 2017, vol.84, n.203, pp.45-54. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v84n203.60544.

The dam failure of Vega de Tera in 1959 was a milestone on the engineering and risk perception of dam in Spain. The back analysis of dam failure and hydraulic model let us improve the spatial planning and the risk assessment. So the main core of this paper is to reconstruct the dam break and compute the spread flow generated, for this task we have been simulated the hydrograph and the peak flow. In this way, has been developed a HEC-RAS hydraulic model. The model shows that the dam failure was an almost instant (26 min), with a maximum flow of 13000 m3 / s (maximum speed 30 m/s, and maximum draft 24 m). Finally, all the hydraulic results corroborate the great destruction generated and the catastrophic scenario observed in the historical images.

Keywords : risk: hydraulic model; flood: Vega de Tera dam; spatial planning..

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