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Abstract(s)
O presente trabalho constitui uma contribuição para o estudo mais aprofundado do comportamento mecânico dos solos da Formação Quelo (solos vermelhos), característicos, por exemplo, da região de Luanda – Angola. Litologicamente são constituídos por arenitos de granulometria fina a média, podendo conter fração argilosa e/ou siltosa. Esta importante linha de investigação tem a sua aplicação no âmbito da geotecnia, a qual pressupõe o estudo das características faciológicas do solo comparando‐as com o seu comportamento mecânico, este último obtido através de ensaios de SPT (Standard Penetration Test) e ensaios laboratoriais. O estudo será efetuado a partir de dados obtidos em vários locais da cidade de Luanda, nomeadamente em Viana no Km30, em Viana na Zona económica, em Talatona, Em Kilamba Kiaxe, no Bairro de Catinton, no Bairro Nova Vida, no centro de Luanda na área do 1ª Maio e no centro de Luanda no aeroporto internacional. Neste contexto, a realização deste trabalho implicará a recolha de amostras, as quais serão submetidas a diferentes análises laboratoriais (granulometria, limites de Atterberg, humidade natural), com o objetivo de determinar os parâmetros geológicos e geotécnicos, assim como a realização de ensaios SPT. Por fim, pretendesse estabelecer uma correlação eficiente entre os diferentes tipos de dados, através de um ábaco, de forma a permitir compreender o comportamento destes solos aquando da sua aplicação na área da Construção Civil, o que poderá, por sua vez, permitir estabelecer previsões de uma forma mais rápida e, como tal, economicamente menos onerosa.
The present work contributes to the deeper study of the mechanical behaviour of the soils of the Quelo Formation (red soils), characteristic of Luanda (Angola). Lithologically, they are composed of fine to medium grain sandstones and may contain clay and/or silt fraction. This important line of research applies in the geotechnical field, which presupposes the study of the faciologic characteristics of the soil comparing them with its mechanical behavior, the latter obtained through SPT (Standard Penetration Test) laboratory tests. The study will be based on data obtained in several locations in the Luanda urban area, namely in Viana at Km30, in Viana at Zona económica, in Talatona, in Kilamba Kiaxe, at the Catinton neighborhood, in the Nova Vida neighborhood, in the center of Luanda area at 1ª Maio and in international airport. In this context, the realization of this work will involve the collection of samples, which will be subjected to laboratory analysis (grain size, Atterberg limits, natural moisture) to determine the geological and geotechnical parameters as the performance of SPT tests. Finally, it is intended to establish an efficient correlation between the different types of data in order to understand the behaviors of these soils when applied to the construction area, making predictions in a faster way, through an abacus for the behaviors of these soils according to what one wants to implement on‐site.
The present work contributes to the deeper study of the mechanical behaviour of the soils of the Quelo Formation (red soils), characteristic of Luanda (Angola). Lithologically, they are composed of fine to medium grain sandstones and may contain clay and/or silt fraction. This important line of research applies in the geotechnical field, which presupposes the study of the faciologic characteristics of the soil comparing them with its mechanical behavior, the latter obtained through SPT (Standard Penetration Test) laboratory tests. The study will be based on data obtained in several locations in the Luanda urban area, namely in Viana at Km30, in Viana at Zona económica, in Talatona, in Kilamba Kiaxe, at the Catinton neighborhood, in the Nova Vida neighborhood, in the center of Luanda area at 1ª Maio and in international airport. In this context, the realization of this work will involve the collection of samples, which will be subjected to laboratory analysis (grain size, Atterberg limits, natural moisture) to determine the geological and geotechnical parameters as the performance of SPT tests. Finally, it is intended to establish an efficient correlation between the different types of data in order to understand the behaviors of these soils when applied to the construction area, making predictions in a faster way, through an abacus for the behaviors of these soils according to what one wants to implement on‐site.
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Keywords
Solos vermelhos Ensaios SPT Ensaios de laboratório Geotecnia Compactação Angola Red soils SPT tests Laboratory tests Geotechnics Compaction