Publication Detail

Assessment of an Effective Stress Analysis for Predicting the Performance of Driven Piles in Clays

Andrew J Whittle
1992
45 pp.
MITSG 93-01

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. Analytical models, which simulate soil disturbance effects associated with pile installation, and constitutive models, which describe the effective stress-strain behavior of normally and lightly overconsolidated clays through successive phases in the life of the pile, have been developed. This paper summarizes the role of these analyses in predictions of pile shaft behavior. 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 analyses are assessed from comparisons with high quality field data at a number of soft clay sites.

type: Technical reports

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