Navegando por Assunto "Floods"
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Item Acesso aberto (Open Access) Avaliação de sistemas de prevenção e contenção de inundações em bacia de drenagem urbana(Universidade Federal do Pará, 2015-03-23) MARTINS, Vânia Carla Dias; PEREIRA, José Almir Rodrigues; http://lattes.cnpq.br/9918600634569244This study aimed to assess the risk of flooding and propose alternatives for prevention and containment of flood for the river basin Tucunduba Oxbow River, located in Belem, from the development of methodology for hydrological and hydraulic simulation, aiming the sustainability of macro drainage system, and analyze the physical variables of the basin to be used as input data for the mathematical models, will also be presented in full simulation methodologies. The results show the application of the models mentioned, as essential tools for the prevention and containment of floods on urban drainage basins, which suffer direct influence of the tidal regime. Since the prevention and containment of extreme events such as floods, is an essential tool for urban areas subject to climatic accidents due to the amount of lives involved in the process, disease by the collapse of the sanitation system and impairments on buildings , materials and infrastructure assets.Item Acesso aberto (Open Access) A contística das águas como escrita do desastre e da catástrofe: vidas viradas pelo avesso na Pan-Amazônia(Universidade Federal do Pará, 2021-01-22) SOUZA, Irisvaldo Laurindo de; SARMENTO-PANTOJA, Tânia Maria Pereira; http://lattes.cnpq.br/3707451019100958; https://orcid.org/0000-0003-1575-5679This master's thesis is the result of a research that investigated the representation of waters in the Amazonian literature, focusing on contouring that has as its leitmotiv the typical hydrological disasters of the region. Among them the Andean "llocllada", the fallen lands, the floods and the fluviomarine tide known as pororoca. The corpus consists of six short stories by four authors: "Terra caída", by Alberto Rangel (2008), part of the book Inferno Verde; "La llocllada" and "Sob as primeiras estrelas" [Cielo sin nubes], by the Peruvian writer Francisco Izquierdo Ríos (1975; 2010); "A flood", by the Amazonian writer Arthur Engrácio (1995); and "Poraquê" and “Mamí tinha razão", by the Paulista writer living in Pará João Meirelles Filho (2017). This research adopts the comparative method and its approach is qualitative, based on bibliography. The main hypothesis was to observe how water disruption impacts the Amazonian subject's experience both on his direct relationship with nature and on his relations with the prevailing social order. The theoretical axis that guides the investigation is the concept of catastrophe, taken from contemporary philosophical thought but directly articulated with the Aristotelian doctrine of human power. The second theoretical key used is the concept of disaster, brought from sociological thought and also epistemologically linked to the power of the natural act in Aristotle's doctrine. With this instrumental, the analytical reading of water contouring is undertaken as an allegorization of the Amazonian man's modus vivendi and of his problematic and sometimes traumatic exposure to the powers that govern the actions of Nature and the facts of Culture. The critical interpretation of literary texts by authors from different periods and aesthetic affiliations thus provides a reflection on the fractures that water disasters cause in daily life and in the experience of individual and collective subjects in the Pan-Amazon, as well as on the traumas imposed on them in late Modernity as a result of the advance of the capital's civilization on the Amazonian border.Item Acesso aberto (Open Access) Mapas de inundação em área urbana na cidade de Araguaína/TO: estudo de caso da interferência da CGH Corujão(Universidade Federal do Pará, 2022-02-25) SANTANA, Leonardo Moreira; SILVA, Adriano Frutuoso da; http://lattes.cnpq.br/3321059172343690; https://orcid.org/0000-0003-1710-8862The habitation occupation in the area of influence of CGH (hydroelectric power station) - Corujão is quite significant, however, there is an imminent risk of flooding in the area, a factor that motivated the development of the study, to understand the real risks incident on the area. Therefore, this work aimed to analyse the impacts of the CGH Corujão dam reservoir in the urban area of the city of Araguaína/TO. A data collection and characterization of the Neblina stream, which flows into the CGH reservoir, were carried out to understand how the occurrence of high levels of rain causes the stream to overflow and increase the risks of flooding in an urban area, being calculated the maximum rainfall. With these data, a simulation was performed using the HEC-RAS program, which led to the generation of flood maps. Regarding the impacts of the dam reservoir in the urban area of the city, it was possible to observe that it has little influence in the flood areas, according to the maps obtained from the aplicativo HEC-RAS. From the results it was possible to verify that most of the maps presented risks to human life and structural damage. These data show that it is an area of vulnerability to floods and, consequently, to life, health, infrastructure, economy and socioeconomic development. The estimated contributions of the study involve the population and the government. The identification of areas of greater vulnerability in terms of failures and collapses of masonry structures, essential information for the development of a master plan in which these areas of greater risk are excluded from use for housing, commerce, services and other activities. With access to the full risk map, the city has the possibility to develop future housing programs so that the existing structures are deactivated and companies, residences, services and others are directed to other areas, with safety and guarantee of rights. Urban planning, in activities such as drainage studies, needs this information so that they can be developed in an assertive and effective way, benefiting the public administration, by avoiding damages that need to be corrected and require resources, in addition to improving the infrastructure of services and making the daily life of citizens safer. The civil defence, in possession of the data obtained, can develop support programs for the residents of the region, issue risk alerts more broadly in the face of the forecast of intense rains and floods, allowing individuals who are in these areas to seek more safe for these moments of risk. With this study, it is possible to define risk reduction approaches that guarantee more health for the population, reduce the demand for resources for health care after the floods, as well as reduce the occupancy of beds for the sick and injured due to the floods. In view of the above, it appears that the benefits are numerous, both for the population and for the public administration, with a reduction in expenses and costs to the public coffers, in addition to a greater guarantee of preservation of the life and patrimony of individuals who, in the present, live in areas of high vulnerability.