| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 3.97 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Atualmente, a utilização de pavimentos permeáveis em áreas urbanas tem como objetivo reduzir o escorrimento superficial e aumentar a infiltração de água no solo, para evitar cheias e inundações nas cidades. Apesar das cidades terem sistemas de drenagem das águas pluviais, por vezes estes não são suficientes e/ou eficientes.
Neste estudo foi avaliada a eficácia dos pavimentos em uso na zona industrial das Cantarias, Bragança, quanto ao efeito no escorrimento superficial e na capacidade de infiltração de água no solo. Com recurso ao método de simulação de chuva, realizaram-se ensaios com cinco tipos de pavimentos: cubos de granito pequenos (CGP), cubos de granito grandes (CGG), quadrados de cimento (QC), blocos de cimento retangulares (BCR) e blocos de cimento tipo “mapa de Portugal” (BCMP). Os resultados mostram que o pavimento construído com quadrados de cimento (QC) é claramente uma escolha inadequada, pois os valores de escoamento superficial são muito elevados. Os restantes pavimentos mostraram padrões muito idênticos de escoamento superficial, sugerindo a escolha por aqueles que causem menor pegada ecológica na região onde vão ser aplicados.
A análise comparativa entre os diversos tipos de pavimentos permitiu avaliar quais os que favorecem a infiltração de água no solo, disponibilizando assim informação útil para a escolha dos pavimentos mais adequados a serem usados em projetos futuros de pavimentação em áreas urbanas, tais como estacionamentos, passeios, parques de estacionamento, parques de lazer, ou mesmo estradas e áreas envolventes de casas e indústrias.
Currently, the use of permeable pavements in urban areas aims to reduce the runoff and increase water infiltration in the soil, to prevent floods and overflows in the cities, although these have a surface water drainage system, but sometimes these do not are sufficient and / or efficient In this study, the effectiveness of the existing pavements in the industrial area of Cantarias, Bragança was evaluated, in order to verify their effectiveness in terms of runoff and the ability to water infiltration. Using the rain simulation method, tests were carried out with five types of pavements: small granite cubes (CGP), large granite cubes (CGG), cement squares (QC), rectangular cement blocks (BCR) and cement blocks type “map of Portugal” (BCMP). The results show that the pavement built with cement squares (QC) is clearly an inappropriate choice, as the values of runoff are very high. The remaining paviments showed very similar patterns of runoff, suggesting the choice for those that cause the smaller ecological footprint in the region where they will be applied. The comparative analysis between the different types of pavements made it possible to evaluate which ones favor the water infiltration in the soil, thus providing useful information for choosing the most suitable pavements to be used in next paving projects in urban areas, such as parking lots, sidewalks, car parks, leisure parks, or even roads and surrounding areas of homes and industries.
Currently, the use of permeable pavements in urban areas aims to reduce the runoff and increase water infiltration in the soil, to prevent floods and overflows in the cities, although these have a surface water drainage system, but sometimes these do not are sufficient and / or efficient In this study, the effectiveness of the existing pavements in the industrial area of Cantarias, Bragança was evaluated, in order to verify their effectiveness in terms of runoff and the ability to water infiltration. Using the rain simulation method, tests were carried out with five types of pavements: small granite cubes (CGP), large granite cubes (CGG), cement squares (QC), rectangular cement blocks (BCR) and cement blocks type “map of Portugal” (BCMP). The results show that the pavement built with cement squares (QC) is clearly an inappropriate choice, as the values of runoff are very high. The remaining paviments showed very similar patterns of runoff, suggesting the choice for those that cause the smaller ecological footprint in the region where they will be applied. The comparative analysis between the different types of pavements made it possible to evaluate which ones favor the water infiltration in the soil, thus providing useful information for choosing the most suitable pavements to be used in next paving projects in urban areas, such as parking lots, sidewalks, car parks, leisure parks, or even roads and surrounding areas of homes and industries.
Description
Keywords
Espaços urbanos Escoamento de águas