Abstract
Researchers have advocated systematic analyses, which model changes in effective stresses and soil properties through successive phases in the life of a pile, as a rational method for understanding the factors which control pile performance. Work at MIT has included the development of analytical models which simulate soil disturbance effects associated with pile installation (Strain Path Method), and constitutive models (e.g., MIT-E3) which describe the effective stress-strain behaviour of normally and lightly overconsolidated clays (OCR ≤ 4) through successive phases in the life of the pile. This paper summarizes the role of these analyses in predictions of pile shaft behaviour. The results illustrate the effects of soil properties, mode of pile installation and other factors affecting the limiting skin friction which can be mobilized at the pile shaft. Predictive capabilities and limitations of the proposed ‘objective analysis’ are reviewed based on comparisons with high quality field data measured by the piezo-lateral stress (PLS) cell and by instrumented model pile tests.
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© 1993 Springer Science+Business Media Dordrecht
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Whittle, A.J. (1993). Assessment of an Effective Stress Analysis for Predicting the Performance of Driven Piles in Clays. In: Ardus, D.A., Clare, D., Hill, A., Hobbs, R., Jardine, R.J., Squire, J.M. (eds) Offshore Site Investigation and Foundation Behaviour. Advances in Underwater Technology, Ocean Science and Offshore Engineering, vol 28. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-2473-9_29
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DOI: https://doi.org/10.1007/978-94-017-2473-9_29
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