Experimental and Numerical Study of Uplift Behavior of Shallow Circular Anchor in Two-Layered Sand
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 133, Issue 4
Abstract
In this study, the behavior and scale effect of shallow circular anchors in two-layered sand is evaluated by comparing the results of a conventional model test with the results of finite-element analysis. The finite-element analysis is performed using an elastoplastic model in which progressive failure with shear band effect is introduced into the constitutive equation. The model is able to successfully predict the anchor behavior in two-layered sand. The direction of shear band propagation, within a sand layer, was observed to be a function of the density alone, regardless of the position of the layer. When the thickness of the lower layer was increased, maximum uplift resistance was found to increase with increasing thickness of a dense layer above a medium bed, and to decrease with increasing thickness of a medium layer above a dense bed. The scale effect was remarkable in the lower layer of dense sand.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 133 • Issue 4 • April 2007
Pages: 469 - 477
Copyright
© 2007 ASCE.
History
Received: Sep 23, 2004
Accepted: Mar 10, 2006
Published online: Apr 1, 2007
Published in print: Apr 2007
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