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A importância crescente da área geoambiental em obras geotécnicas: acompanhamento de uma obra em Lisboa
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 11.36 MB | Adobe PDF |
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Abstract(s)
A presente dissertação, baseada num estágio curricular académico, foca-se na crescente
importância da componente geoambiental nas obras geotécnicas. Explora ainda uma campanha de
prospeção geotécnica e ambiental, realizada na Rua do Mirador, em Lisboa. De modo a obter o
conhecimento necessário para a elaboração do presente trabalho, foi realizado um estágio na
Mota-Engil Engenharia & Construção S.A. – Departamento de Geotecnia. Neste relatório é dada
ênfase aos trabalhos efetuados em campo, descrevendo alguns métodos de prospeção mais
utilizados, incluindo a prospeção mecânica, ensaios in situ e prospeção geofísica. Também é
referida a informação relevante a incluir nos ensaios geoambientais, como a legislação e os tipos
de ensaios, assim como a sua importância no estudo geológico-geotécnico. É analisada em maior
detalhe a crescente importância ambiental na geotecnia, com recurso ao estudo das campanhas de
prospeção realizadas entre os anos de 2020 a 2024 através da plataforma “GIS MEEC”, da Mota-
Engil. O objetivo desta análise é avaliar a tendência da solicitação de componente geoambiental
em obras geotécnicas, principais elementos analisados e quais os que demonstram maior
excedência em relação aos valores de referência utilizados pela APA, em Portugal. Por último, é
analisado um caso prático de uma campanha de prospeção geotécnica e ambiental, que menciona
os trabalhos realizados, a metodologia utilizada e os resultados obtidos. Debatem-se os resultados
dos ensaios in situ, nomeadamente a resistividade elétrica e os ensaios geoambientais, visando
prevenir possíveis consequências da deficiente aplicação e interpretação de resultados.
This dissertation, based on an academic internship, focuses on the growing importance of the geoenvironmental component in geotechnical works. It also explores a geotechnical and geoenvironmental in situ investigation campaign carried out in Rua do Mirador, Lisbon. To acquire the necessary knowledge for this work, an internship was conducted at Mota-Engil Engenharia & Construção S.A. – Geotechnics Department. This report focuses on the work carried out in the field, describing some of the most commonly used prospecting methods, including mechanical prospecting, in situ tests, and geophysical exploration. It also provides relevant information to be included in environmental tests, such as applicable legislation and the types of tests, as well as their importance in geological-geotechnical studies. The growing geoenvironmental importance of geotechnics is analyzed in greater detail through a study of in situ investigation campaigns conducted between 2020 and 2024 using Mota-Engil's “GIS MEEC” platform. This analysis aims to assess the trend in requests for an environmental component in geotechnical works, the main elements analyzed, and those that show the most significant deviation from the reference values used by the APA in Portugal. Finally, a case study of a geotechnical and environmental in situ campaign is analyzed, mentioning the work carried out, the methodology used, and the results obtained. The results of in situ tests are discussed, particularly electrical resistivity and geoenvironmental tests, to prevent potential consequences resulting from the poor application and interpretation of the results.
This dissertation, based on an academic internship, focuses on the growing importance of the geoenvironmental component in geotechnical works. It also explores a geotechnical and geoenvironmental in situ investigation campaign carried out in Rua do Mirador, Lisbon. To acquire the necessary knowledge for this work, an internship was conducted at Mota-Engil Engenharia & Construção S.A. – Geotechnics Department. This report focuses on the work carried out in the field, describing some of the most commonly used prospecting methods, including mechanical prospecting, in situ tests, and geophysical exploration. It also provides relevant information to be included in environmental tests, such as applicable legislation and the types of tests, as well as their importance in geological-geotechnical studies. The growing geoenvironmental importance of geotechnics is analyzed in greater detail through a study of in situ investigation campaigns conducted between 2020 and 2024 using Mota-Engil's “GIS MEEC” platform. This analysis aims to assess the trend in requests for an environmental component in geotechnical works, the main elements analyzed, and those that show the most significant deviation from the reference values used by the APA in Portugal. Finally, a case study of a geotechnical and environmental in situ campaign is analyzed, mentioning the work carried out, the methodology used, and the results obtained. The results of in situ tests are discussed, particularly electrical resistivity and geoenvironmental tests, to prevent potential consequences resulting from the poor application and interpretation of the results.
Description
Keywords
Environmental Geotechnics In situ Investigations Tests Contamination Admissibility Geotecnia ambiental Prospeção geotécnica Ensaios Contaminação Admissibilidade