Settlement Prediction for Driven Piles and Pile Groups

by Harry G. Poulos, (F.ASCE),

Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments


Various methods of settlement prediction are reviewed for single piles and pile groups, and it is demonstrated that several of the methods give similar results. It is also found that the representation of a pile group by an equivalent pier provides a useful practical means of estimating the settlement behavior of pile groups, and can be used for either linear or nonlinear analyses. The practical applicability of some of the theoretical approaches is examined for a number of published case histories. It is found that the predicted settlements are far more sensitive to the soil stiffness or modulus than to the method of analysis. Nonlinear analysis appears to be desirable for both single piles and pile groups in sand, although linear analyses provide adequate settlement predictions for piles in clay.

Subject Headings: Soil settlement | Pile settlement | Pile groups | Soil analysis | Linear analysis | Driven piles | Soil modulus

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