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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Bacias hidrográficas urbanizadas: renaturalização, revitalização e recuperação. Um estudo da bacia do Jaguaré. / Urban watershed: restoration, revitalization, recovery. A study of Jaguaré watershed.

Juliana Caroline de Alencar da Silva 01 June 2017 (has links)
A urbanização traz consigo diversos desafios, dentre eles, o manejo das águas, o qual se destaca por englobar aspectos de diversas áreas do conhecimento e demandar soluções multidisciplinares, o que nem sempre é fácil de alcançar. O presente estudo se dedicou à analise dos principais aspectos e desafios envolvidos no processo de requalificação de corpos d\'água em áreas urbanas. Discute-se a renaturalização, a revitalização e a recuperação, e suas dificuldades, como o controle efetivo das cargas poluidoras na bacia hidrográfica, o reestabelecimento das funções ecossistêmicas dos corpos d\'águas e a promoção da integração da população no processo a fim de garantir sua efetividade e durabilidade. Este estudo compreende a análise crítica das principais técnicas existentes de manejo da água no meio urbano; das metodologias de tratamento de canais atualmente empregadas; das novas técnicas de drenagem, consideradas sustentáveis; e das estruturas utilizadas para controle de cargas poluidoras. Para tanto as técnicas estudadas foram aplicadas em uma proposta de requalificação da bacia hidrográfica do córrego Jaguaré, situada na zona oeste do município de São Paulo, a fim de auxiliar estudos futuros no melhor entendimento dos processos envolvidos e na escolha da melhor técnica de manejo (renaturalização, revitalização ou recuperação) a ser empregada para distintos cenários. A bacia do córrego Jaguaré conta com uso do solo heterogêneo, possuindo desde áreas verdes bem preservadas, até remanescentes industriais e rodovias e, portanto, apresenta diversos problemas e usos conflituosos do espaço, o que garante a ela um campo fértil para estudos relativos ao manejo das águas. Para validar a proposta de requalificação foi realizada ainda uma consulta pública junto aos moradores da bacia a fim de compreender as demandas da sociedade. / Urbanization brings with it several challenges, among them water management that stands out because it involves aspects of several areas of knowledge and demands multidisciplinary solutions, which is not always easy to achieve. The present study was devoted to the analysis of the main aspects and challenges involved in the process of urban watercourses requalification. The restoration, revitalization and recovery, and their difficulties, such as the effective pollution control in the watershed, the reestablishment of the ecosystem functions of the watercourses and the population integration in order to ensure the process effectiveness and durability. This study includes the critical analysis of the main existing water management techniques, such as methodologies of channels treatment currently employed, sustainable drainage, and structures used for pollutant control. The techniques studied were applied in a proposal for the Jaguaré watershed requalification, located in the western zone of São Paulo city, in order to help future studies to better understand the processes involved. Besides that it helps to choose the best management techniques (Restoration, revitalization or recovery) to be used for different scenarios. The Jaguaré watershed has a heterogeneous land occupation, preserving green areas, residential use, industrial remnants, and highways. Therefore, it presents several problems and conflicting land uses, which ensures it is a fertile field for water management studies. In order to validate the requalification proposal, a public consultation was also held with the watershed residents, in order to understand the society\'s demands.
12

Sistema urbano de drenaje sostenible para evitar inundaciones de origen pluvial mejorando áreas verdes, cruce Av. Mateo Pumacahua – Av. Separadora Industrial, Distrito Villa El Salvador / Sustainable urban drainage system to avoid flooding of rain origin by improving green areas, Mateo Pumacahua crossing - Separadora Industrial, Villa El Salvador district

López Amaro, José Luis, Villavicencio Cuya, Raquel Lorena 23 August 2021 (has links)
En el distrito de Villa El Salvador se vienen ejecutando obras de pavimentación de las vías, la ejecutada en la Av. Mateo Pumacahua tramo comprendido entre la Av. Separadora Industrial y la Av. Pachacutec”, trae como consecuencia la disminución de la infiltración y las precipitaciones que se registraron en los últimos años en el distrito han ocasionado aniegos provocando accidentes peatonales y de vehículos. Para dar solución ingenieril a este problema se propone implementar el SISTEMA URBANO DE DRENAJE SOSTENIBLE (SUDS) y que consiste en técnicas de gestión de aguas producidas por las precipitaciones, permitiendo devolver el ciclo del agua a las poblaciones urbanizadas, mejorando la calidad del agua a infiltrar y evitando las inundaciones. Mediante cunetas verdes se recolectará los excedentes de aguas pluviales que proviene de las pendientes altas, el agua recolectada se distribuirá mejorando las áreas verdes de la zona de estudio. El hidrograma Unitario Sintético del SCS fue modelado con el HEC-HMS, cuyos resultados fueron, el caudal de diseño de 0.3 m3/s y el volumen excedente de 6400 m3, por otro lado, el balance hídrico nos mostró un déficit que no permitirá cubrir el 1.5% del mantenimiento de las áreas verdes. Del análisis de las alternativas se escogió las cunetas verdes por ser las económicas y con los mismo beneficios técnicos y ambientales. Las precipitaciones registradas el 08/08/2018 fue de 0.2 mm/h y ocasionaron aniegos en la zona de estudio. Las cunetas verdes fueron diseñadas para eventos extraordinarios, el cual permitirá solucionar los problemas de inundaciones. / In the district of Villa El Salvador, paving works have been carried out on the roads, the one executed on Av. Mateo Pumacahua section between Av. Separadora Industrial and Av. Pachacutec", brings as a consequence the decrease in infiltration and rainfall that was recorded in recent years in the district have caused aniegos causing pedestrian and vehicle accidents. To provide an engineering solution to this problem, it is proposed to implement the SUSTAINABLE URBAN DRAINAGE SYSTEM (SUDS) and that consists of water management techniques produced by rainfall, allowing to return the water cycle to urbanized populations, improving the quality of the water to be infiltrated and avoiding floods. Through ditches the surplus rainwater that comes from the high slopes will be collected, the collected water will be distributed improving the green areas of the study area. The Synthetic Unit hydrograph of the SCS was modeled with the HEC-HMS, the results of which were, the design flow of 0.3 m3 / s and the excess volume of 6400 m3, on the other hand, the water balance showed us a deficit that did not cover 1.5 % of the maintenance of green areas. From the analysis of the alternatives, green ditches were chosen because they are economical and have the same technical and environmental benefits. The rainfall recorded on 08/08/2018 was 0.2 mm / h and caused waterlogging in the study area. The green gutters were designed for extraordinary events, which will allow solving flood problems. / Tesis

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