scholarly journals Avaliação do desempenho de telhados verdes e reservatórios de lote no amortecimento de vazões de pico em uma bacia urbana

Revista DAE ◽  
2020 ◽  
Vol 68 (227) ◽  
pp. 35-49
Author(s):  
Júlia Baptistella Machado Dutra ◽  
Talita Fernanda das Graças Silva
Keyword(s):  
Water Management ◽  
Low Impact Development ◽  
Storm Water ◽  
Management Model ◽  
Storm Water Management ◽  
Storm Water Management Model ◽  
Belo Horizonte

Mudanças no uso do solo e impermeabilização das superfícies têm aumentado a ocorrência de inundações nas cidades brasileiras. Este trabalho investiga como telhados verdes e reservatórios de lote minimizam inundações urbanas ao reduzir o escoamento superficial e a vazão de pico. A bacia do córrego Engenho Nogueira (Belo Horizonte, MG) foi escolhida como estudo de caso. O Storm Water Management Model foi utilizado para simular três cenários: C0, situação atual; C100 e C50, implantando as técnicas, respectivamente, em 100% e 50% das áreas potenciais. O escoamento superficial na bacia foi reduzido em até 22,3% devido ao bom desempenho dos telhados verdes, com escoamento superficial nulo e volumes drenados até 25,5% inferiores ao volume precipitado. Os reservatórios de lote apresentaram baixo desempenho devido ao volume insuficiente. A vazão de pico no exutório da bacia foi reduzida em no máximo 11,6% (C100, chuva com tempo de retorno de 10 anos e duração de 10 minutos). Palavras-chave: Low Impact Development. Técnicas compensatórias. SWMM. Drenagem urbana.

scholarly journals A User-Friendly Software Package to Develop Storm Water Management Model (SWMM) Inputs and Suggest Low Impact Development Scenarios

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2344
Author(s):  
Hanyong Lee ◽  
Wonhee Woo ◽  
Youn Shik Park
Keyword(s):  
Water Management ◽  
Low Impact Development ◽  
Stormwater Runoff ◽  
Optimization Process ◽  
Storm Water ◽  
Management Model ◽  
Storm Water Management ◽  
Storm Water Management Model ◽  
The Cost ◽  
User Friendly

Increases in imperviousness due to urbanization and industrialization increases stormwater runoff and nonpoint source pollution. Approaches reducing these hydrological impacts include low impact development (LID) methods. Various methods have been developed and applied to date, and an evaluation of stormwater runoff and a reduction of non-point source pollution has been conducted. The Storm Water Management Model (SWMM) is capable of simulating various LID approaches, although selecting and implementing a suitable method for a specific target area, when considering the cost of various low impact development approaches, requires significant time and effort. A software program called Storm Water Management Model–low impact development design program (SWMM-ING), that can be optimally applied to deal with the cost of low impact development methods, was developed in this study. For SWMM-ING, an optimization process was conducted for low impact development, which can reduce stormwater runoff by 10%, suspended solid by 15%, and total phosphorus by 15%. The spatial arrangement and the area of the permeable pavement, bioretention cells, infiltration trenches, and green roofs were determined. Because SWMM-ING has a user-friendly graphical interface, and the optimization process of the low impact development approach is simple and straightforward, it has the advantage of not requiring specialized knowledge.

scholarly journals Uso de técnicas de low impact development no controle de impactos hidrológicos

2019 ◽  
Vol 24 (6) ◽  
pp. 1195-1208
Author(s):  
Franciele Zanandrea ◽  
André Luiz Lopes da Silveira
Keyword(s):  
Water Management ◽  
Low Impact Development ◽  
Storm Water ◽  
Management Model ◽  
Storm Water Management ◽  
Storm Water Management Model

RESUMO O crescimento desordenado traz diversas implicações na drenagem das bacias urbanas, principalmente no referente a alterações no escoamento pluvial. A bacia Mãe d’Água em Viamão (RS), no Brasil, retrata esse problema. Assim, levanta-se a seguinte questão: existem soluções de Low Impact Development (LID) compatíveis com a mitigação de impactos hidrológicos em situações de ocupação urbana em consolidação? Para isso, foram realizadas simulações de três cenários de urbanização: o atual, o futuro e o possível. O cenário atual representa o sistema atual; o futuro é representado pela concretização do Plano Diretor de Viamão, com taxa de permeabilidade de 10% nos lotes; e o possível foi apresentado por meio da inserção das medidas de LID (vegetative swales e pavimentos permeáveis) e taxas de permeabilidade de lote do cenário futuro. As simulações foram realizadas no modelo Storm Water Management Model (SWMM) para chuvas de projeto com tempo de retorno de 2, 5, 10 e 20 anos. O cenário que se apresentou mais crítico quanto a problemas de drenagem foi o futuro. No possível, mesmo com medidas mitigadoras, ainda existem volumes extravasados em alguns pontos, porém as LID reduziram o volume escoado na bacia em até 14% para o tempo de retorno de 2 anos. As medidas de LID apresentaram melhor desempenho para chuvas com menores tempos de retorno. A melhor eficiência na redução dos volumes escoados foi através da manutenção de taxas de permeabilidade do solo. Porém, as LID auxiliam na redução do escoamento superficial, sendo uma alternativa viável para áreas que já estão consolidadas.

scholarly journals Simulation of Low Impact Development (LID) Practices and Comparison with Conventional Drainage Solutions

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 640 ◽  
Author(s):  
Ioannis M. Kourtis ◽  
Vassilios A. Tsihrintzis ◽  
Evangelos Baltas
Keyword(s):  
Water Management ◽  
Design Process ◽  
Low Impact Development ◽  
Green Roofs ◽  
Storm Water ◽  
Management Model ◽  
Storm Events ◽  
Storm Water Management Model ◽  
Runoff Volume ◽  
Peak Runoff

The present work aims at quantifying the benefit of Low Impact Development (LID) practices in reducing peak runoff and runoff volume, and at comparing LID practices to conventional stormwater solutions. The hydrologic-hydraulic model used was the Storm Water Management Model (SWMM5.1). The LID practices modeled were: (i) Green roofs; and (ii) Permeable pavements. Each LID was tested independently and compared to two different conventional practices, i.e., sewer enlargement and detention pond design. Results showed that for small storm events LID practices are comparable to conventional measures, in reducing flooding. Overall, smaller storms should be included in the design process.

Estimation of sub-catchment area parameters for Storm Water Management Model (SWMM) using geo-informatics

2015 ◽  
Vol 31 (4) ◽  
pp. 462-476 ◽  
Author(s):  
Gaurav V. Jain ◽  
Ritesh Agrawal ◽  
R.J. Bhanderi ◽  
P. Jayaprasad ◽  
J.N. Patel ◽  
...  
Keyword(s):  
Water Management ◽  
Catchment Area ◽  
Storm Water ◽  
Management Model ◽  
Storm Water Management ◽  
Storm Water Management Model

scholarly journals Evaluasi Sistem Drainase Menggunakan Storm Water Management Model (SWMM) dalam Mencegah Genangan Air di Kota Tarakan

2020 ◽  
Vol 3 (2) ◽  
pp. 143-154
Author(s):  
Rahmat Faizal ◽  
Noerman Adi Prasetya ◽  
Zikri Alstony ◽  
Aditya Rahman
Keyword(s):  
Water Management ◽  
Urban Areas ◽  
Storm Water ◽  
Management Model ◽  
Economic Losses ◽  
Water Runoff ◽  
Runoff Simulation ◽  
Storm Water Management ◽  
Storm Water Management Model ◽  
Drainage Channels

Tarakan City experiences problems with standing water during the rainy season, especially in the west Tarakan sub-district which is the center of Tarakan. This puddle not only submerged settlements and offices but also shops and access roads that caused considerable economic losses. An evaluation was carried out by using the Storm Water Management Model (SWMM). SWMM is a rainfall-runoff simulation model used for simulating the quantity and quality of surface runoff from urban areas. Based on the evaluation using SWMM software, the drainage system in Tarakan, especially in Jalan Mulwarman has several inundated channels, namely channels 2, 3, 4, 5, 6, 7, 11, 12, 13, 14. This is influenced by the dimensions of the drainage channel that cannot accommodate existing water runoff and sediment thickness that covers the drainage channels so that the capacity is reduced, if it rains it will cause puddles at several points in Tarakan City. In order to deal with these puddles, it is necessary to change the dimensions of the channel and routinely dredge sediments that cover the drainage channels.

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