PROPOSTA DE READEQUAÇÃO DO SISTEMA DE MICRODRENAGEM NO BAIRRO JARDIM ELDORADO EM BOA ESPERANÇA-MG

Abstract

This study presents the analysis on the existing microdrainage system in the Jardim Eldorado neighborhood, in the city of Boa Esperança MG, focusing on storm sewers. It is a study about the importance of a well-planned microdrainage system, its components and how they are dimensioned, developed through bibliographical research, hydrological data collection for basin characterization and field survey. It was evidenced the soil erosion in the place of study, caused by the rupture of one of the stretches of rain gauge that passes there. Once the project flow rates of the site contribution basins were calculated, it was compared to the runoff capacity of the existing sewers. The results showed that the design flows of both galleries exceed the carrying capacity, which leads to the conclusion that they were not correctly dimensioned. In this way, it was understood that the best way to re-adjust the microdrainage system of the site would be the design of a complementary system to transport the excess flow, so that it would work concurrently with the existing one. It was proposed to establish gutters in places where they did not exist and substitute existing ones considered inadequate; Besides the dimensioning of storm drains and rainwater galleries. Once this new system was scaled, it was estimated that the cost for its implementation would be R$ 4,228,410.69.