Avaliação de técnicas compensatórias para atenuação de alagamentos na sub-bacia da Lagoa Rodrigo de Freitas

• Ano de defesa: 2025
• Autor(a) principal: Barbosa, Rodrigo dos Santos
• Outros Autores: [e-mail]
• Orientador(a): Silva, Júlio César da
• Banca de defesa: Souza, Lúcio Silva de , Silva Filho, Pedro Alves da , Puggian, Cleonice
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade do Estado do Rio de Janeiro
• Programa de Pós-Graduação: Programa de Pós-Graduação em Gestão e Regulação de Recursos Hídricos (PROF-ÁGUA)
• Departamento: Centro de Tecnologia e Ciências
• País: Brasil
• Palavras-chave em Português: Drenagem urbana; Inundação; Alagamento; Técnicas compensatórias; Lagoa Rodrigo de Freitas
• Palavras-chave em Inglês: Drainage; Flood; Compensatory techniques; Rodrigo de Freitas Lagoon
• Área do conhecimento CNPq: ENGENHARIAS::ENGENHARIA SANITARIA::RECURSOS HIDRICOS::CONTROLE DE ENCHENTES E DE BARRAGENS
• Link de acesso: http://www.bdtd.uerj.br/handle/1/24509

The problem of flooding is becoming increasingly recurrent in urban centers. The process of urbanization of cities tends to promote changes in the use and occupation of land, not allowing water to permeate as before, which can cause such events and risk situations for the population and cause damage. The Rodrigo de Freitas Lagoon sub-basin is a region of great economic importance for the city of Rio de Janeiro and of great real estate interest. Its occupation process has at times in history, lacked planning and, at others, has been quite accelerated and expansionist, having an impact on the dynamics and management of rainwater today. The aim is to create a technical note with recommendations that apply compensatory techniques as mitigating measures for the problem of flooding in the Rodrigo de Freitas Lagoon sub-basin. To this end, a mapping of the area was carried out, focusing on critical zones, the leisure area and other places in the urban landscape, during field visits, which could host one or more solutions within the basin. Based on this study, it will be proposed to implement improvements to the existing drainage, applying the concepts of sustainable drainage. Measures and technologies were suggested to solve the problems faced in some parts of the basin. Environmental data (meteorological, geographic and hydrographic) was also collected for this region. This data was processed, calculated and generated graphs by Excel to evaluate rainfall intensity in relation to time. In the HEC-HMS program, a hydrograph was created, both with a recurrence time of 25 years. In the software QGIS, all the Geographic Information System work was carried out and thematic maps of the region were generated. Rainfall records in the basin, both the intensity of rainfall and the number of occurrences, have been on the rise and show an upward trend. It was found that there is an interest on the part of the public administration in solving the problem of flooding in the region, with more efforts being made to find the best solution for the application of technologies. Simulation studies can be carried out and the most appropriate absorption percentages calculated to improve the efficiency of the suggested techniques. This work identifies areas with a history of occurrences, characterizes these points and indicates public spaces with the potential to receive infiltration techniques, rainwater reservoirs and permeable surfacing. The product of the thesis is a technical note with recommendations for measures to mitigate flooding in the Rodrigo de Freitas Lagoon sub-basin. As a result, this research can support local managers in applying resources to solve drainage problems in the region and inspire further studies.