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Publication
Riscos associados à aplicação de betão projetado – Mina de Aljustrel
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| 2.76 MB | Adobe PDF |
Authors
Abstract(s)
A exploração de minério, dentre todas as atividades da indústria extrativa, é reconhecida como uma atividade de alto risco, sujeita a legislação específica. O principal objetivo desta dissertação é desenvolver um instrumento de avaliação de riscos adaptado à indústria extrativa, visando minimizar a subjetividade nos critérios de avaliação.
Os objetivos centrais do estudo são acompanhar e verificar a correta execução do processo construtivo em obras, com foco especial na aplicação de betão projetado em galerias de mina subterrânea, priorizando a prevenção de riscos na perspetiva da segurança e saúde no trabalho. O estudo também procura compreender a correlação entre risco e trabalhadores, equipamentos e indicadores utilizados, visando otimizar a redução de acidentes de trabalho.
A avaliação de risco desempenha um papel crucial na prevenção de acidentes e na proteção da integridade física dos trabalhadores, utilizando-se neste trabalho a Matriz GUT. A identificação das condições de segurança e saúde ligadas ao processo produtivo permite uma avaliação detalhada de todas as tarefas, métodos de execução, tipos de equipamentos/materiais utilizados, número de pessoas expostas, perigos, eventos desencadeadores e riscos ocupacionais.
Embora a eliminação completa de todos os perigos e eventos desencadeadores nem sempre seja viável, medidas de controle e prevenção podem significativamente reduzir a exposição dos trabalhadores aos riscos, melhorando as condições de segurança e trabalho. Nesse contexto, o foco principal desta dissertação foi identificar o processo executivo da aplicação de betão projetado na mina subterrânea de Aljustrel, Portugal, juntamente com os seus subprocessos.
Metodologicamente, foi realizado um estudo descritivo de natureza transversal. Os dados recolhidos foram inseridos no programa estatístico Statistical Package for the Social Science (SPSS), seguido por uma análise estatística para atender aos objetivos do estudo.
Por fim, recomenda-se que novas pesquisas aprofundem a análise dos impactos das medidas implementadas ao longo do tempo, avaliando sua efetividade na redução de acidentes e na melhoria das condições de trabalho na indústria extrativa.
Mining, among all the activities in the extractive industry, is recognized as a high-risk activity, subject to specific legislation. The main aim of this dissertation is to develop a risk assessment tool adapted to the extractive industry, with a view to minimizing subjectivity in the assessment criteria. The central objectives of the study are to monitor and verify the correct execution of the construction process on construction sites, with a special focus on the application of shotcrete in underground mine galleries, prioritizing risk prevention from the perspective of occupational health and safety. The study also seeks to understand the correlation between risk and the workers, equipment and indicators used, with a view to optimizing the reduction of accidents at work. Risk assessment plays a crucial role in preventing accidents and protecting the physical integrity of workers, using the GUT Matrix in this study. Identifying the health and safety conditions linked to the production process enables a detailed assessment of all tasks, methods of execution, types of equipment/materials used, number of people exposed, hazards, triggering events and occupational risks. Although the complete elimination of all hazards and triggering events is not always feasible, control and prevention measures can significantly reduce workers' exposure to risks, improving safety and working conditions. In this context, the focus of this dissertation was to identify the executive process of applying shotcrete in the Aljustrel – Portugal, underground mine, along with its sub-processes. Methodologically, a descriptive cross-sectional study was conducted. The data collected was entered into the Statistical Package for the Social Science (SPSS) statistical program, followed by a statistical analysis to meet the study's objectives. Finally, it is recommended that further research deepens the analysis of the impacts of innovative measures over time, evaluating their effectiveness in reducing accidents and improving working conditions in the extractive industry.
Mining, among all the activities in the extractive industry, is recognized as a high-risk activity, subject to specific legislation. The main aim of this dissertation is to develop a risk assessment tool adapted to the extractive industry, with a view to minimizing subjectivity in the assessment criteria. The central objectives of the study are to monitor and verify the correct execution of the construction process on construction sites, with a special focus on the application of shotcrete in underground mine galleries, prioritizing risk prevention from the perspective of occupational health and safety. The study also seeks to understand the correlation between risk and the workers, equipment and indicators used, with a view to optimizing the reduction of accidents at work. Risk assessment plays a crucial role in preventing accidents and protecting the physical integrity of workers, using the GUT Matrix in this study. Identifying the health and safety conditions linked to the production process enables a detailed assessment of all tasks, methods of execution, types of equipment/materials used, number of people exposed, hazards, triggering events and occupational risks. Although the complete elimination of all hazards and triggering events is not always feasible, control and prevention measures can significantly reduce workers' exposure to risks, improving safety and working conditions. In this context, the focus of this dissertation was to identify the executive process of applying shotcrete in the Aljustrel – Portugal, underground mine, along with its sub-processes. Methodologically, a descriptive cross-sectional study was conducted. The data collected was entered into the Statistical Package for the Social Science (SPSS) statistical program, followed by a statistical analysis to meet the study's objectives. Finally, it is recommended that further research deepens the analysis of the impacts of innovative measures over time, evaluating their effectiveness in reducing accidents and improving working conditions in the extractive industry.
Description
Keywords
Betão projetado Saúde e segurança Lista de verificação de riscos Mina subterrânia Avaliação de risco