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Abstract(s)
O presente trabalho pretende apresentar e correlacionar os resultados obtidos através de ensaios ao solo com o Penetrómetro Dinâmico Superpesado(DPSH) e com o Standard Penetration Test (SPT), executados em diferentes solos na região do nordeste transmontano com o equipamento e os meios disponíveis no Laboratório de Geotecnia do Instituto Politécnico de Bragança.
São tecidas algumas considerações sobre a importância da caracterização geotécnica do solo em espaço urbano, descritas as vantagens e inconvenientes da utilização de ensaios de laboratório e de ensaios in situ e referido o carácter complementar dos dois tipos de ensaios.
Nos locais avaliados, foram realizados diversos ensaios de campo e de laboratório, permitindo a identificação dos solos e determinação dos seus parâmetros geotécnicos.
Ao longo do desenvolvimento deste trabalho, foi possível reunir um conjunto de informações sobre os terrenos analisados e sobre as características dos equipamentos utilizados, fundamentais para investigações futuras.
Por ultimo, pretende-se também demonstrar a importância e as vantagens inerentes da associação dos ensaios SPT e DPSH nas campanhas de caracterização geotécnica.
As relações obtidas entre o número de pancadas do DPSH e SPT (NSPT/NDPSH), é de 0,70 a 1,58, e o valor de R2 varia entre 0,88 a 0,96. Estes coeficientes, sendo próximos da unidade são bons resultados, o que indica uma boa correlação entre os resultados dos dois tipos de ensaios.
The present work intends to present and correlate the results obtained from the Dynamic Penetrometer Super Heavy Weight Test (DPSH) and the Standard Penetration Test (SPT), executed in different soils in the northeast region of Portugal and with the equipment available in the geotechnical laboratory of the Polytechnic Institute of Bragança. Some considerations are made about the importance of geotechnical characterization of soil in urban area. Also the advantages and disadvantages of the use of laboratory and in situ tests and the complementarity between this two types of tests are described. In the analysed sites, several field and laboratory tests were carried out, allowing to soil identification and obtaining the geotechnical parameters. Through the work carried out, it was possible to gather a set of information of the soils analysed and the characteristics of the test equipment used, fundamental to future research. Finally, it is also intended to demonstrate the importance and inherent advantages of the association of the SPT and DPSH tests in the in situ geotechnical characterization. vi
The present work intends to present and correlate the results obtained from the Dynamic Penetrometer Super Heavy Weight Test (DPSH) and the Standard Penetration Test (SPT), executed in different soils in the northeast region of Portugal and with the equipment available in the geotechnical laboratory of the Polytechnic Institute of Bragança. Some considerations are made about the importance of geotechnical characterization of soil in urban area. Also the advantages and disadvantages of the use of laboratory and in situ tests and the complementarity between this two types of tests are described. In the analysed sites, several field and laboratory tests were carried out, allowing to soil identification and obtaining the geotechnical parameters. Through the work carried out, it was possible to gather a set of information of the soils analysed and the characteristics of the test equipment used, fundamental to future research. Finally, it is also intended to demonstrate the importance and inherent advantages of the association of the SPT and DPSH tests in the in situ geotechnical characterization. vi