Verificação do dimensionamento das galerias de águas pluviais em uma sub‐bacia do Córrego Botafogo na cidade de GOIÂNIA‐GO
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Data
2012-07-23
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Universidade Federal de Goiás
Resumo
The uncontrolled urbanization occurring in large Brazilian cities caused
by the lack of planning regarding the land occupation and use has led to an intense
surface sealing and consequent increase in runoff. In addition, the non‐
development of urban drainage designs and the conduction of undersized drainage
systems have enhanced the environmental sanitation problems, generating
insecurity to the population in rainy periods. The goal of the present study was to
evaluate the storm sewer design in a highly anthropized area in the city of Goiânia,
Goiás State. To this end, it was first sought information on existing network.
Afterwards, it was implemented a systematic calculation to design the storm sewer
that could combine practical tools, such as spreadsheets and application of
equations instead of using tables present in the use of the Rational Method. The
equations were based on Saatçi (1990) for the steady flow. Along with the
equations, a flowchart was developed showing the steps needed for the design. The
information of storm sewer were compared with the performed design, taking into
account some conservative considerations like the runoff coefficient of 0.50
adopted by the PMG – Municipal City Hall of Goiânia, as well as the time of entry of
10 minutes. The results pointed out diameters below the required for the study
area, indicating recurrent problems whenever necessary. Besides a proper design of
the storm sewer it was also emphasized the need for using compensatory
techniques in the study, in order to mitigate the existing problems.
Descrição
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Drenagem urbana, Galerias de águas pluviais, Metodologias de dimensionamento de sistemas de drenagem, Urban drainage, Storm sewer systems, Design methodologies of drainage systems
Citação
MENEZES FILHO, Frederico Carlos Martins de; COSTA, Alfredo Ribeiro da. Verificação do dimensionamento das galerias de águas pluviais em uma sub-bacia do Córrego Botafogo na cidade de Goiânia-GO. Revista Eletrônica de Engenharia Civil, Goiânia, v. 1, n. 4, 2012. Disponível em: https://revistas.ufg.br/reec/article/view/18164. Acesso em: 4 nov. 2022.