Hybrid method to update the design flood shape for spillway operation in a dam: case study of the Huites Dam,Mexico |
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| Authors: | Maritza Liliana Arganis-Juárez Margarita Preciado-Jiménez Óscar A Fuentes-Mariles Alejandro Mendoza-Reséndiz Ramón Domínguez-Mora Faustino De Luna-Cruz |
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| Institution: | 1. Instituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad de México, México;2. Facultad de Ingeniería, Universidad Nacional Autónoma de México, Ciudad de México, México;3. Subcoordinación de Hidrología superficial, Instituto Mexicano de Tecnología del Agua, Jiutepec, México;4. Departamento de Recursos de la Tierra, Universidad Autónoma Metropolitana- Lerma, Edomex, México |
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| Abstract: | To design and review the operation of spillways, it is necessary to estimate design hydrographs, considering their peak flow, shape and volume. A hybrid method is proposed that combines the shape of the design hydrograph obtained with the UNAM Institute of Engineering Method (UNAMIIM) with the peak flow and volume calculated from a bivariate method. This hybrid method is applied to historical data of the Huites Dam, Sinaloa, Mexico. The goal is to estimate return periods for the maximum discharge flows (that account for the damage caused downstream) and the maximum levels reached in the dam (measure of the hydrological dam safety) corresponding to a given spillway and its management policy. Therefore, to validate the method, the results obtained by the flood routing of the 50-year hydrograph are compared with those obtained by the flood routing of the three largest historical floods. Both maximum flow and elevation were in the range of values observed within 37.5–75 years corresponding to the length of the historical record. |
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| Keywords: | design hydrographs spillway UNAM Institute of Engineering method (UMAMIIM) bivariate method hybrid method hydrological dam safetyHuites DamMexico |
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