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A contribuição da Geologia de Engenharia no projeto geotécnico. Um caso de estudo
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O presente relatório descreve as atividades realizadas em ambiente de estágio, no contexto de trabalho
de empresa, inserido no plano curricular do Mestrado em Geologia, na Área de Especialização Geologia
Aplicada e Ambiental, lecionado na Faculdade de Ciências da Universidade de Lisboa, cujo tema é “A
contribuição da Geologia de Engenharia no projeto geotécnico. Um caso de estudo”.
Numa primeira parte, são tecidas algumas considerações técnicas, nomeadamente sobre as metodologias
e os ensaios aplicados nas campanhas de prospeção, através de consulta bibliográfica em diversos
manuais da especialidade, sobre os diferentes métodos e dispositivos mais frequentemente utilizados,
referentes ao tipo de prospeção utilizada, de ensaios in situ e laboratoriais.
São apresentados os resultados decorrentes das diferentes campanhas de prospeção que incidiram na
fase de execução de um projeto que foi acompanhado com maior pormenor no decorrer do estágio. De
modo a realizar a caracterização dos terrenos do projeto em causa, procedeu-se à análise dos respetivos
logs de sondagens, à interpretação de resultados dos ensaios realizados in situ e laboratoriais.
Apresentam-se os perfis geológico-geotécnicos interpretativos, estabelecendo-se o enquadramento
geológico local e as suas condições geotécnicas com interesse para o projeto.
De modo a obter os elementos de base para a elaboração do Estudo Geológico e Geotécnico, inclui-se o
Plano de Prospeção Geotécnica, com os critérios e metodologias adotadas para a sua realização, critérios
de colheita de amostras, realização de ensaios in situ, localizações dos diferentes métodos e tipos de
prospeção, tendo em vista que se pretende adquirir um conhecimento suficiente do maciço até
profundidades consideradas interessadas pela respetiva obra.
A conjugação e integração dos elementos existentes sobre o local ou proximidade do mesmo, juntamente
com os elementos do reconhecimento geológico de superfície, deverá permitir elaborar o Estudo
Geológico e Geotécnico que informe sobre as características geológicas e geotécnicas dos terrenos, que
corresponda às necessidades do projeto.
This report describes the activities carried out in an internship environment, in the context of company work, as part of the curricular plan of the master’s degree in Geology, in the Area of Specialization Applied and Environmental Geology, taught at the Faculty of Sciences of the University of Lisbon, whose theme is “The contribution of Engineering Geology to geotechnical design. A case study”. In the first part, some technical considerations, methodologies, and tests applied in the prospecting campaigns are described, through bibliographic consultation in various specialist manuals, on the different methods and devices most frequently used, referring to the type of prospecting used, in situ and laboratory tests. The results of the different prospecting campaigns that took place during the execution phase of a project that was monitored throughout the internship are presented. To characterize the soils of the project in question, the respective borehole logs were analyzed and the results of in situ and laboratory tests were interpreted. Interpretative geological-geotechnical profiles are presented, establishing the local geological framework and its geotechnical conditions of interest to the project. To obtain the basic elements for the preparation of the Geological and Geotechnical Study, the Geotechnical Prospecting Plan is included, with the criteria and methodologies adopted for its realization, criteria for taking samples, carrying out in situ tests, locations of the different methods and types of prospecting, with a view to acquiring sufficient knowledge of the massif to depths considered interesting by the respective works. The combination and integration of the existing elements on or near the site, together with the elements of the surface geological reconnaissance, should make it possible to draw up the Geological and Geotechnical Study that reports on the geological and geotechnical characteristics of the land, which corresponds to the needs of the project.
This report describes the activities carried out in an internship environment, in the context of company work, as part of the curricular plan of the master’s degree in Geology, in the Area of Specialization Applied and Environmental Geology, taught at the Faculty of Sciences of the University of Lisbon, whose theme is “The contribution of Engineering Geology to geotechnical design. A case study”. In the first part, some technical considerations, methodologies, and tests applied in the prospecting campaigns are described, through bibliographic consultation in various specialist manuals, on the different methods and devices most frequently used, referring to the type of prospecting used, in situ and laboratory tests. The results of the different prospecting campaigns that took place during the execution phase of a project that was monitored throughout the internship are presented. To characterize the soils of the project in question, the respective borehole logs were analyzed and the results of in situ and laboratory tests were interpreted. Interpretative geological-geotechnical profiles are presented, establishing the local geological framework and its geotechnical conditions of interest to the project. To obtain the basic elements for the preparation of the Geological and Geotechnical Study, the Geotechnical Prospecting Plan is included, with the criteria and methodologies adopted for its realization, criteria for taking samples, carrying out in situ tests, locations of the different methods and types of prospecting, with a view to acquiring sufficient knowledge of the massif to depths considered interesting by the respective works. The combination and integration of the existing elements on or near the site, together with the elements of the surface geological reconnaissance, should make it possible to draw up the Geological and Geotechnical Study that reports on the geological and geotechnical characteristics of the land, which corresponds to the needs of the project.
Descrição
Relatório de Estágio de Mestrado, Geologia (Geologia Aplicada e Ambiental), 2024, Universidade de Lisboa, Faculdade de Ciências
Palavras-chave
Estudos Geológicos-Geotécnicos Projetos de Engenharia Prospeção Geotecnia Geologia Teses de mestrado - 2024