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Authors
Abstract(s)
As estradas de baixo volume de tráfego - EBVT são partes consideráveis e importantes
da malha rodoviária de muitos países, realizando papéis fundamentais como a conexão entre
comunidades isoladas às cidades, o acesso a regiões rurais e a ligação entre pontos estratégicos
seja em função econômica ou para funcionamento da sociedade. No último aspecto, atua a
EBVT estudada a qual realiza a ligação entre duas barragens que participam ativamente no
fornecimento de água para a cidade de Bragança em Portugal. Sobre esta estrada realizou-se
ensaios dinâmicos e laboratoriais além de avaliar e discutir a condição funcional da mesma.
Em razão do objeto de estudo caracterizar-se quanto a sua composição como uma
estrada não pavimentada, foram revisadas as falhas comuns a esse tipo de estrada e averiguado
os métodos tradicionais que examinam objetivamente a condição funcional e o método já
aplicado sobre a mesma estrada em questão. Embora tanto o método praticado quanto os
tradicionais sejam objetivos, eles possuem processamento de falhas diferentes de um para outro.
Desta maneira, coletou dados para avaliação de Cabette (2018), método praticado nos estudos
anteriores e para o método URCI (1992), analisando e discutindo os resultados obtidos.
A aplicação de ensaios dinâmicos justifica-se pela praticidade de execução, mas
principalmente para contribuir cientificamente à discussão deles visto que, até o momento de
desenvolvimento desta dissertação, trabalhos acadêmicos sobre os mesmos são escassos. Trinta
pontos distribuídos pela estrada foram submetidos ao LFWD e ao CBR dinâmico em dois
período diferentes, o que permitiu avaliar a evolução dos parâmetros destes ensaios.
A estrada do estudo foi avaliada tanto pela abordagem mecânica quanto pela funcional
em um estado deteriorado. Os ensaios dinâmicos evidenciaram que os parâmetros de
capacidade de carga caíram de valor continuamente ao longo do tempo. A avaliação funcional
pelo método de Cabette variou mais em seções de estudo diferentes do que o método URCI.
Low Volume Roads - LVR are a consistent and important part of the road network of many countries, performing important roles as connectors of isolated communities to cities, providing access to rural regions, and biding strategic points, whether of economic importance or for regular behavior of the society. This last aspect fits the LVR studied in this thesis, connecting two dams that act directly in the water supply for the city of Bragança in Portugal. In this road, dynamic and laboratory tests were applied besides the evaluation and discussion of its functional condition. Due to the study object being physically characterized as an unpaved road, the usual distresses found in this kind of road were reviewed, and the traditional methods that objectively analyze roads were studied, as well as the method already applied in the same road. Although both the applied and the traditional methods are objective ones, they process differently the problems of the roads. Thus, data were collected for the application of the Cabette (2018) method, the one practiced by the last studies in the road, and for the URCI (1992) method, analyzing and discussing the results for both of them. The adoption of dynamic tests was justified by the convenience of execution, but mainly to contribute scientifically to the discussion of them as, until the moment that this master thesis was written, there were few academic papers about them. Thirty points distributed through the road were measured by LFWD and dynamic CBR in two different moments, which were performed in different seasons of the year that allowed retrospective analyses of the measured parameters of these tests. The road of the study was evaluated by both mechanical and functional approaches as in a deteriorated condition. The dynamic tests pointed that the bearing capacity parameters downgraded continually along the time. The functional evaluation by Cabette’s method floated more in different inspections sections than the URCI method.
Low Volume Roads - LVR are a consistent and important part of the road network of many countries, performing important roles as connectors of isolated communities to cities, providing access to rural regions, and biding strategic points, whether of economic importance or for regular behavior of the society. This last aspect fits the LVR studied in this thesis, connecting two dams that act directly in the water supply for the city of Bragança in Portugal. In this road, dynamic and laboratory tests were applied besides the evaluation and discussion of its functional condition. Due to the study object being physically characterized as an unpaved road, the usual distresses found in this kind of road were reviewed, and the traditional methods that objectively analyze roads were studied, as well as the method already applied in the same road. Although both the applied and the traditional methods are objective ones, they process differently the problems of the roads. Thus, data were collected for the application of the Cabette (2018) method, the one practiced by the last studies in the road, and for the URCI (1992) method, analyzing and discussing the results for both of them. The adoption of dynamic tests was justified by the convenience of execution, but mainly to contribute scientifically to the discussion of them as, until the moment that this master thesis was written, there were few academic papers about them. Thirty points distributed through the road were measured by LFWD and dynamic CBR in two different moments, which were performed in different seasons of the year that allowed retrospective analyses of the measured parameters of these tests. The road of the study was evaluated by both mechanical and functional approaches as in a deteriorated condition. The dynamic tests pointed that the bearing capacity parameters downgraded continually along the time. The functional evaluation by Cabette’s method floated more in different inspections sections than the URCI method.
Description
Mestrado de dupla diplomação com a UTFPR - Universidade Tecnológica Federal do Paraná
Keywords
Avaliação funcional Catálogo de degradações CBR dinâmico EBVT Ensaios dinâmicos Estrada não pavimentada LFWD Método URCI