Navegando por Assunto "Macrodrenagem"

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Acesso aberto (Open Access)
A implantação de obras civis e de saneamento na Bacia do Una, em Belém do Pará, e as condicionantes relacionadas às características geológicas e geotécnicas
(Universidade Federal do Pará, 2004-04-26) SILVA, Kleber Roberto Matos da; ALENCAR JÚNIOR, Júlio Augusto de; http://lattes.cnpq.br/3663658632717465
This Thesis presents the civil engineering works for implementation of drainage and sanitation facilities in the area of influence of the Una canal, in the city of Belém, in the State of Pará, Brazil, involving the installation of drainage, water and sewer nets as well as road construction. This project, known as Project Una, involves an area of 3.644 ha, corresponding to approximately 21% of the continental area of city, with great part of its surface below flood level, that is, up to 3,60 m above sea level. The stratigrafy of the project area is composed basically of a thick superficial layer of very soft organic clay, that in some cases may reach over 60 m deep, overling intercalation of medium to compact sand layers and medium to hard silty clay layers. Besides the construction difficulties in soils of this nature, this work presents the many problems to resolved, as the resettlement of families of risk areas, that is, families that are living on the bed of channels, hindering the draining of the served waters and pluvial waters; the compensations of shaky residences for the works; the lack of physical space for the setting up of the works; the instability of the slopes of the marginal road of channels; the difficulties of management in the of face the extensive encircle of the area; the relationships with the community, tumultuated in some moments and, mainly, the priority of some areas, in detriment of other, for the execution of the works, in the face of available resources. Based in technical reports, projects and the author's personal experiences the thesis makes a description of the project in its several aspects, as well, makes a critical review of it, under the civil engineering’s point of view, involving planning and executions aspects of the works, with the purpose of building and setting up of the knowledge, that promote the improvement in future development in the similar projects.
Acesso aberto (Open Access)
Bacias hidrográficas urbanas : aspectos socioambientais da bacia do Tucunduba, Amazônia, Brasil
(Universidade Federal do Pará, 2021-09-15) FIGUEIREDO, Camila de Magalhães e Souza; SOUSA-FELIX, Rosigleyse Corrêa de; http://lattes.cnpq.br/1452935151806378; https://orcid.org/0000-0002-3769-0792
The Tucunduba Hydrographic Basin (THB) is the second largest basin in the city of Belém, in Pará. It drains four districts of Belém: Marco, Canudos, Terra Firme and Guamá. It is one of the most densely populated areas in the city, with a population of approximately 200,000 inhabitants. This work aims to analyze the socio-environmental conditions of the Tucunduba Basin, based on the macro-environmental elements needed to understand the dynamics of use throughout the basin. The methodological approaches of the research included the application of a questionnaire to the residents of the THB, a calculation based on the local Urban Quality of Life Index (UQLI), a calculation of the Simplified Environmental Impact Index, an estimate of the per capita sewage discharge of the neighborhoods belonging to the THB and an Environmental Impact Assessment of the physical, biotic and anthropic environments in the 3 sections of the macrodrainage project. Based on the results obtained, the IQVU in the Tucunduba Basin is approximately 0.6, i.e. regular. In addition, the results generated through the simplified environmental impact assessment show that the stretches analyzed have considerable environmental impacts (either high or very high). This demonstrates the precariousness of the services offered to the population and highlights the fragility of local urban management. There is therefore an urgent need for integrated management strategies, the evaluation and monitoring of space, and the provision of services that guarantee a good quality of life and the environment.