Horizontal Soil Reaction of a Cylindrical Pile Segment with a Soft Zone
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Engineering Mechanics
Volume 140, Issue 10
Abstract
An analytical solution in the realm of two-dimensional linear elasticity theory is presented for the soil reaction around a laterally loaded cylindrical pile segment surrounded by an annular zone of soft elastic material, under plane strain conditions. To this end, a seminal model is extended to account for different boundary conditions at the interfaces separating the annular zone from the pile and the outer material. Analytical closed-form solutions are derived for the stiffness of the system and the stress and strain fields in the annular zone, for the following combinations of shear boundary conditions: (1) perfectly bonded interfaces, (2) perfectly smooth interfaces, (3) perfectly bonded inner and perfectly smooth outer interface, and (4) perfectly smooth inner and perfectly bonded outer interface. It is shown that for both very thin and very thick soft zones, the stiffness of the system becomes independent of shear boundary conditions. The predictions of the model are compared against those of two models based on strength-of-materials theory. Three-dimensional effects and numerical simulation aspects are discussed.
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Acknowledgments
The help of Dr. Raffaele Di Laora in carrying out the finite element results reported in Fig. 8 is gratefully acknowledged.
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Published In
Journal of Engineering Mechanics
Volume 140 • Issue 10 • October 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 21, 2010
Accepted: Mar 3, 2014
Published online: Apr 2, 2014
Discussion open until: Sep 2, 2014
Published in print: Oct 1, 2014
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