Adaptação de equipamentos urbanos para aplicação de medidas compensatórias

Abstract

Is very usual to find disorder situations related to floods in big cities, because of the increase of waterproofed area that does not allow infiltration, increasing the runoff and the peak of the drained volume. The work proposes a detention reservoir, located in a critical stretch of flooding in Heráclito Graça Avenue with Idelfonso Albano Street, in Praça Bárbara de Alencar, that belongs to the basin of the Riacho Pajeú. It is proposed na adaptation of a square as a way to reuse existing urban equipment. The detention tank, a compensatory technique, which is considered as an adjusting facility of the urban drainage, softening it, which is caused by the high waterproofing index, reducing the peak flow, and bring improvements to other areas such as public health, for example. The Rational Method was used to find the input hydrogram and Puls Method to find the propagation in the reservoir. Several simulations were performed with different contribution basin sizes and return times. It was verified that the best alternative, that is, the one with the greatest reduction in the peak flow, would be a contribution area of 10 hectares and with a return period of 10 years.