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Advisor(s)
Abstract(s)
O trabalho apresenta uma abordagem inicial da problemática das fundações com situações particulares, mostrando da importância das estacas em obras de engenharia. Apresentam-se aspectos teóricos fundamentais para a compreensão do dimensionamento de fundações por estacas verticais, tendo em atenção os parâmetros de resistência dos maciços naturais (solos e rochas). Apresentam-se também os vários métodos analíticos, empíricos e experimentais no dimensionamento de estacas sujeitas a esforços axiais, considerando as metodologias clássicas e a proposta pelo Eurocódigo 7. Mais à frente são expostos os resultados de ensaios de carga resultantes do acompanhamento em obra de estacas devidamente monitorizadas e apresenta-se a discussão sobre os resultados obtidos
experimentalmente, comparando-os com os resultantes das aplicações a partir dos
métodos explanados, e por fim, apresentam-se algumas conclusões e consequentes
recomendações.
This work begins with an initial approach of the foundations problematic and are presented some specific cases that show the importance of piles as an important foundation alternative and in some cases the most effective option. It is discussed the theoretical basics for the knowledge of the foundations design by piles under vertical loads, being ware of the strength resistance of the soils and rock bedded materials. It is presented as well the several design methods, analytic, empiric and the experimental, considering piles under vertical loads, the methodology proposed on Eurocode 7 is considered also highlighted on this work and reviewed for better understanding. Results from pile load tests are them presented, and compared with the values that where obtained by the preliminary design, them some conclusions are taken and recommendations are made.
This work begins with an initial approach of the foundations problematic and are presented some specific cases that show the importance of piles as an important foundation alternative and in some cases the most effective option. It is discussed the theoretical basics for the knowledge of the foundations design by piles under vertical loads, being ware of the strength resistance of the soils and rock bedded materials. It is presented as well the several design methods, analytic, empiric and the experimental, considering piles under vertical loads, the methodology proposed on Eurocode 7 is considered also highlighted on this work and reviewed for better understanding. Results from pile load tests are them presented, and compared with the values that where obtained by the preliminary design, them some conclusions are taken and recommendations are made.
Description
Keywords
Fundações - Estacas - Aspectos técnicas Fundações - Estacas - Ensaios de carga Estacas - Tipologias Estacas - Mecânicas dos solos