Citas bibligráficas
Medina, V., (2022). Dimensionamiento de obras hidráulicas en zonas altoandinas: caso canal de derivación Rumichaca [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/24513
Medina, V., Dimensionamiento de obras hidráulicas en zonas altoandinas: caso canal de derivación Rumichaca [Tesis]. PE: Universidad Nacional de Ingeniería; 2022. http://hdl.handle.net/20.500.14076/24513
@misc{renati/712469,
title = "Dimensionamiento de obras hidráulicas en zonas altoandinas: caso canal de derivación Rumichaca",
author = "Medina Sal y Rosas, Victor Vladimir",
publisher = "Universidad Nacional de Ingeniería",
year = "2022"
}
This thesis addresses the impact on the design of hydraulic works and the costs of construction using the SCS storms (Soil Conservation Service, now known as NRCS, governmental agency of the United States of America), and specific design storms for the central Andes of Peru. This project was developed using data from the San Cristobal meteorological station, managed by the Peruvian National Service of Meteorology and Hydrology (SENAMHI). The San Cristobal station is located in Yauli district, Yauli province, Junin region, at 4,680 m a.s.l. in the Atlantic Ocean watershed, very close to the continental divide. It presents hourly rainfall records between August, 2006 and July, 2016, with missing data between August, 2008 and July, 2009. Consistency of the rainfall data registered in the San Cristobal station was verified based on double mass analysis developed with data from nearby stations La Oroya and Tanta, which are less than 50 km away, and have an elevation difference of less than 500 m with the San Cristobal station. Available records from the San Cristobal Station show 5,592 storm events. These events were defined based on the criteria that one storm event is followed by a period of at least an hour of no precipitation. The analysis was carried out on the storm events that had the largest precipitation, and, therefore, the highest runoff flows. From the total defined storm events, 12% correspond to events with cumulative precipitation greater than 5 mm, and 0.4% correspond to events with cumulative precipitation greater than 15 mm. The alternate block diagram of normalized rainfall intensity and duration was used to compare the hyetographs of the selected storm events recorded at the San Cristobal station, and the SCS design storm hyetographs (Type I, Type IA, Type II and Type III), commonly used by designers in Peru. As a result, it was found that the standardized hyetographs of the recorded storm events do not fit any of the SCS hyetographs, but instead, they fall in between the hyetographs Type I and Type II. A design storm event hyetograph for the San Cristobal Station is proposed, based on the envelopes of the hyetographs of the recorded storm events, which is applicable to storm events with durations ranging between 12 and 24 hours, and return periods of up to 10 years. The proposed San Cristobal station storm event hyetograph was used in the design a bypass channel along the Rumichaca Creek (1,717 m longitude), situated at the same elevation and under similar conditions. Based in the analysis, a flow that represents 60% of the flow corresponding to the type II SCS storm hyetograph was obtained, which affects the dimensions and construction cost of hydraulic structures. As a result, savings of direct construction cost were on the order of 11.8%.
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