Pile‐Group Settlement Using Independent Shaft and Point Loads
Publication: Journal of Geotechnical Engineering
Volume 114, Issue 4
Abstract
A method of predicting pile‐group settlements is presented herein for cases in which the piles are held together by means of a rigid cap. Piles in the group are assumed to be of the same material, length, and diameter. Settlement influence and interaction factors are obtained using a finite element code, modeling the pile as a hollow cylindrical insert in the interior of a homogeneous, linear, elastic, isotropic halfspace. These factors are tabulated and can be used with the results of individual, full‐scale, pile load tests to provide a very effective means of estimating pile‐group settlements. Shaft and point loads are treated independently when applying the method, thus allowing for simulation of implicitly variable shaft and point load ratios during loading. Uniform shaft load distributions are assumed, but other distributions can be considered as well. Few parameters are needed to apply the method, which therefore retains the simplicity of existing elastic methods. A full‐scale, pile‐group load test reported in the literature is analyzed to show the reliability of the proposed method. Results are presented that indicate excellent agreement between predicted and measured values.
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Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 114 • Issue 4 • April 1988
Pages: 469 - 487
Copyright
Copyright © 1988 ASCE.
History
Published online: Apr 1, 1988
Published in print: Apr 1988
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