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Desenvolvimento de um sistema de gerenciamento de pavimentos urbanos integrado a um SIG com aplicação direta no bairro Pacoval (Macapá- AP)
(UNIFAP - Universidade Federal do Amapá, 2023) GARCIA, Mateus de Oliveira; ASSIS, José Vitor Borges; OLIVEIRA, Adenilson Costa; http://lattes.cnpq.br/2745252559386566; https://orcid.org/0009-0001-9692-0279; https://lattes.cnpq.br/6671428599912285
The Urban Pavement Management System serves as a mechanism aimed at assessing and estimating the condition of the existing road network, thereby optimizing the allocation of financial resources in the realm of infrastructure, particularly concerning the maintenance and rehabilitation of urban roads. Currently, there is no record of a system with such a purpose catering to the municipality of Macapá. Funds allocated for road maintenance are predominantly directed towards patchwork operations. To spatially analyze the current state of road preservation in the Pacoval neighborhood, a specific Geographic Information System (GIS) was employed for this case study, with data collected through field surveys. The data collected is based on servitude value, existing drainage type, maintenance history of the roads, and the functional class of each analyzed section. In light of this information, a specific study was conducted, centered on calculating the Pavement Condition Index (PCI) for Ceará Avenue, from Traversa 02 towards the flood-prone area in the Pacoval neighborhood. After a meticulous selection process, this section was classified as having a regular servitude value, with a significant factor in this choice being the amount of material used in this section. The specific studies have also classified the pavement as regular, with a PCI of 55, indicating a maintenance strategy involving a new pavement overlay through resurfacing. This approach has a relevant priority index for future sections to be analyzed.
Estudo de caso: análise de estabilidade de taludes com metodologia numérica e equilíbrio limite em uma ponte de Macapá-AP
(UNIFAP - Universidade Federal do Amapá, 2023) BRITO, Maria Michely Figueiredo; RAMBO, Luis Henrique; http://lattes.cnpq.br/0890417787664472; https://orcid.org/0009-0000-4692-3220
The interaction between human beings and space – whether natural or anthropomorphized –requires compliance with certain parameters that can provide guarantees about safety in terms of its use and occupation by man. When it comes to slopes – earthworks characterized by the presence of an inclined surface –; its stability can be analyzed through probabilistic and deterministic approaches, the last presented here through the limit equilibrium method and the finite element method (FEM) – turning to the determination of a factor of safety (FS) that relates resistant forces and mobilizing forces in an attempt to avoid the establishment of a scenario that promotes landslide. In this sense, it was identified in the city of Macapá (AP) the existence of a densely occupied area that contains the main instrument of infrastructure in urban mobility destined to connect different areas of the same, the Sérgio Arruda bridge (PSA) – which interposes a body of water, the Canal do Jandiá, delimited by a slope. In view of the fact that the structure no longer serves the purposes for which it was designed, its replacement is foreseen, thus observing the change in the loading conditions that will affect the slope located in its surrounding. Therefore, the objective was to establish a comparison of the performance of conventional analysis methods of limit equilibrium against the FEM applied to the real scenario of the slope that delimits the Canal do Jandiá. For this purpose, the Geo5 software was used as a computational analysis tool, incorporating information about the geometry of the slope section – obtained through a topographic survey –; characterization of the soil in the region – based on geotechnical studies and their insufficiency based on theoretical information –; and finally, estimation of loads from the current structure, as well as the addition of these from its replacement by a new structure; adding to the study the simulation of theoretical scenarios for a predominantly sandy soil and subsequently a predominantly clayey soil. After analyzing the models produced, the FS was obtained with a satisfactory approximation for the proposed methods, observing its decrease and the increase in variance as the external overloads increased; with regard to the geotechnical composition of the adopted interfaces, for the cases studied, the sandy soil presents the highest FS indices, on the other hand, the clayey soil presents, in all cases, the lowest FS indices. For the original scenario, under the conditions of application of overloads, a relief of tensions was observed through the application of overloads originating from the future PSA, however, without retroacting from an unstable situation – considering the overloads from the current PSA –; for a stable situation, which corroborates the need to evaluate the implementation of an auxiliary containment structure in view of the intense occupation of the region and high associated risks.
Aplicação do método IGG - Índice de Gravidade Global - para avaliação e determinação de serviços de reabilitação de pavimentos flexíveis. Estudo de caso: rua 01 da Universidade Federal do Amapá- Campus Marco Zero
(UNIFAP - Universidade Federal do Amapá, 2023-09-19) ALMEIDA, Larissa Pereira; OLIVEIRA, Adenilson Costa; http://lattes.cnpq.br/2745252559386566; https://orcid.org/0009-0001-9692-0279
It is common for flexible flooring to suffer deterioration over time, having an average service life stipulated around 10 years, when combined with appropriate preventive maintenance processes. In this way, over time, various types of pathological manifestations can emerge that impair the conditions of the existing floor. The present work uses the IGG Method (Global Gravity Index) to analyze the conditions of the flooring of Rua 01, Federal University of Amapá, with three years of use. This method objectively evaluates the types of pathological manifestations of the floors existing in the pathway and their repetition index, so that it is possible to characterize the conditions of the floor. Through the analysis of the results obtained, it was possible to identify that the most common defects are surface wear, longitudinal slits, transverse slices, block slits, and wheel-rail sinking, characterizing the floor with the bad concept. From the diagnosis of the functional condition of the studied floor, it is suggested some preventive and corrective interventions based on the technical prescriptions of the Manual of Restoration of Asphaltic Floors - DNIT, such as sealing coating and asphaltic overlaying in some sections, to increase the life of the floor taking into account the cost-benefit ratio. The use of the IGG Method presented a functional classification of the path in accordance with its state of conservation and consequently for adopting the corrective solution.
Estudo de caso: desenvolvimento econômico regional a partir de obras de infraestrutura no setor de transportes do estado do Amapá
(UNIFAP - Universidade Federal do Amapá, 2023) BORGES, Júlio Campos Nazaré; LUCAS, Cristina Maria Baddini; https://lattes.cnpq.br/0455917482012277; https://orcid.org/0009-0003-5229-8910
The objective of the present study is to analyze regional development related to the transportation system, exposing data on the economic potential that a modal promotes to a region, in order to prove that interventions in infrastructure can be the best alternative for growth. To this end, a case study was developed in the state of Amapá, where there are low levels of industrialization and several social setbacks. Data was collected about the state's economic chain and the respective collaboration inherent to the local transportation infrastructure. From this, the state of operation of the various local modes was analyzed and it was found that, in some cases, the infrastructure limits the volume and types of cargo transported. After the analysis of this scenario, major infrastructure projects and works in Amapá, Brazil and abroad that encompass the transportation system in the region were researched. Thus, the focus was on two major projects: the Arco Norte and the Transguianense highway. The nature of each of the projects was analyzed as well as the real impact for the economic chain of the state. Finally, it was concluded that the infrastructure works in the transportation sector are capable of significantly boosting regional economic development, especially for more remote locations, making them suitable for the installation of industries and income generation. However, a deep study of the needs of each region is indispensable in order to prioritize the most advantageous projects.
Avaliação da incorporação de material luminescente alternativo no revestimento de pavimentos flexíveis para condições de visibilidade noturna
(UNIFAP - Universidade Federal do Amapá, 2023-09-20) REZENDE, Juliely Caroline Alcolumbre; OLIVEIRA, Adenilson Costa; http://lattes.cnpq.br/2745252559386566; https://orcid.org/0009-0001-9692-0279
Luminescent materials, when used for decorative purposes, have a well-established applicability, such as in the ornamentation of aquariums, outdoor gardens, lawns, emergency exit signs, and walkways. These materials are composed of synthetic resins with no environmental impact, and their luminescence is naturally obtained without the need for electricity. However, within the field of engineering, their application is infrequent, especially in the context of road infrastructure. Considering this scenario, the present study aims to evaluate the utilization and feasibility of using these materials for horizontal road signage. For the purposes of this study, tests were conducted on specimens of CBUQ (Conventional Bituminous Concrete Mix) incorporating three different materials: luminous stones with granulometry equivalent to coarse aggregate, luminous stones with granulometry equivalent to fine aggregate, and painting with luminescent Glow Corion paint. The objective was to assess the luminosity behavior of the specimens over time after exposure to natural light ceased. The results obtained demonstrated that among the materials tested, the application of Glow Corion paint to the surface of the specimen yielded the best results, with good surface adhesion. The maximum observed duration of brightness was approximately 780 minutes, with the first 5 minutes displaying intense brightness followed by a progressive decay of phosphorescence.