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Prediction of the horizontal load-displacement curves of pile groups based on the results of single pile tests

de Sousa Coutinho, António GF

Canadian geotechnical journal, 2000-10, Vol.37 (5), p.951-962 [Periódico revisado por pares]

Ottawa, Canada: NRC Research Press

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  • Título:
    Prediction of the horizontal load-displacement curves of pile groups based on the results of single pile tests
  • Autor: de Sousa Coutinho, António GF
  • Assuntos: Earth sciences ; Earth, ocean, space ; Engineering and environment geology. Geothermics ; Engineering geology ; Exact sciences and technology ; Load ; Piles (Engineering)
  • É parte de: Canadian geotechnical journal, 2000-10, Vol.37 (5), p.951-962
  • Descrição: This paper presents the prediction of horizontal load-displacement curves of pile groups based on the results of single pile tests. Although the same basic model is employed, two different approaches are taken: one assumes soil to be linear elastic-plastic, and the other assumes it to be elastic nonlinear. The model is calibrated on the basis of the results of a full-scale single pile test. Special emphasis is placed on model calibrations, since the success of any prediction method depends on a careful characterization of the soil. Some new approaches for determining the soil parameters are presented. Two methods for predicting load-displacement curves, one from each model approach, are then proposed and discussed. Special emphasis is placed on group efficiency in the elastic-plastic method and on the boundary conditions of the single pile and the pile group in the elastic nonlinear method. Using the soil characteristics from the model calibrations, the load-displacement curves for a given pile group are then predicted. These predictions are compared with the results of a full-scale pile group test carried out at the same site as that of the single pile test. Agreement between the predictions and the test results tends to validate the methods proposed.Key words: displacement predictions, pile groups, model calibration, pile tests.
  • Editor: Ottawa, Canada: NRC Research Press
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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