Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR

The urban growth, especially resulting from the development of social interest housing projects of high population density, demands a substantial increase in the availability of public services. However, there is little information concerning the consequences of those projects. This article presents...

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Main Authors:	Bucharles, Luciano Gardano Elias, Silva, Sandra Márcia Cesário Pereira da
Format:	Online
Language:	por
Published:	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008
Online Access:	https://seer.ufrgs.br/ambienteconstruido/article/view/3736
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id	ojs-article-3736
record_format	ojs
spelling	ojs-article-37362008-04-28T15:10:54Z Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR Avaliação do volume de água pluvial drenado em um empreendimento habitacional: estudo de caso em Londrina - PR Bucharles, Luciano Gardano Elias Silva, Sandra Márcia Cesário Pereira da Escoamento superficial; Drenagem urbana; Trincheiras de infiltração; Empreendimentos Habitacionais de Interesse Social The urban growth, especially resulting from the development of social interest housing projects of high population density, demands a substantial increase in the availability of public services. However, there is little information concerning the consequences of those projects. This article presents an analysis of rainwater drainage in a specific social interest housing project, by the assessment of flood hydrograms in four distinct situations: before the construction of the project, considering the natural river-bed; after the construction of the project, without considering the design changes introduced by the dwellers; the actual situation, considering those design changes, which resulted in an increase of the impermeable area; the actual situation, but considering the construction of infiltration trenches. The study indicated that the construction of the project increased the volume of rain-water superficial flow in 1.127%. By contrast, the construction of individual infiltration trenches in each one of the 331 residential lots would reduce this volume in 41%. The cost of each trench (US$ 168) can be compensated by the cost reduction of the project public drainage system. Moreover, this solution would comply with the project environmental and sustainability requirements. O crescimento urbano, principalmente decorrente da implantação de empreendimentos habitacionais de interesse social de alta densidade populacional, demanda um acentuado aumento da disponibilidade de serviços públicos. Porém, são poucas as informações acerca das suas conseqüências. O presente trabalho apresenta a análise da drenagem de água pluvial em um empreendimento deste tipo, através da avaliação dos hidrogramas de cheia em quatro situações distintas: antes da implantação do empreendimento, com o leito natural; após a implantação, sem as alterações de projeto; após a implantação, com as alterações de projeto introduzidas pelos moradores, que resultou em um aumento da área impermeabilizada; após a implantação do empreendimentos com as alterações de projeto, mas considerando a execução de trincheiras de infiltração. O estudo indicou que a implantação do empreendimento aumentou em 1.127% o volume escoado superficialmente ao longo de toda a área do empreendimento. A introdução de trincheiras de infiltração individuais em cada um dos 331 terrenos residenciais reduziria esse volume em 41%. O custo unitário das trincheiras (US$ 168) pode ser compensado pela redução dos gastos com o sistema de drenagem pública do empreendimento, situação esta que atenderia aos requisitos ambientais e de sustentabilidade do empreendimento. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-04-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/3736 Ambiente Construído; v. 7, n. 2 (2007); 45-57 Ambiente Construído; v. 7, n. 2 (2007); 45-57 Ambiente Construído; v. 7, n. 2 (2007); 45-57 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/3736/2089 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution	Universidade Federal do Rio Grande do Sul
collection	OJS
language	por
format	Online
author	Bucharles, Luciano Gardano Elias Silva, Sandra Márcia Cesário Pereira da
spellingShingle	Bucharles, Luciano Gardano Elias Silva, Sandra Márcia Cesário Pereira da Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR
author_facet	Bucharles, Luciano Gardano Elias Silva, Sandra Márcia Cesário Pereira da
author_sort	Bucharles, Luciano Gardano Elias
title	Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR
title_short	Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR
title_full	Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR
title_fullStr	Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR
title_full_unstemmed	Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR
title_sort	evaluation of volume of drained rainwater in a housing project: case study in londrina - pr
description	The urban growth, especially resulting from the development of social interest housing projects of high population density, demands a substantial increase in the availability of public services. However, there is little information concerning the consequences of those projects. This article presents an analysis of rainwater drainage in a specific social interest housing project, by the assessment of flood hydrograms in four distinct situations: before the construction of the project, considering the natural river-bed; after the construction of the project, without considering the design changes introduced by the dwellers; the actual situation, considering those design changes, which resulted in an increase of the impermeable area; the actual situation, but considering the construction of infiltration trenches. The study indicated that the construction of the project increased the volume of rain-water superficial flow in 1.127%. By contrast, the construction of individual infiltration trenches in each one of the 331 residential lots would reduce this volume in 41%. The cost of each trench (US$ 168) can be compensated by the cost reduction of the project public drainage system. Moreover, this solution would comply with the project environmental and sustainability requirements.
publisher	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate	2008
url	https://seer.ufrgs.br/ambienteconstruido/article/view/3736
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Evaluation of volume of drained rainwater in a housing project: case study in Londrina - PR

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