Pullout Behavior of Geogrid by Test and Numerical Analysis
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 129, Issue 4
Abstract
This paper presents a study of geogrid pullout behavior in laboratory pullout tests and finite element modeling of the laboratory pullout tests. The pullout tests and the finite element method (FEM) analyses were carried out on two geogrid types with different stiffness values in dense sand under different overburden pressures. The pullout test results show that the geogrid behavior can be categorized into three types based on the bond stress distributions. The FEM results show reasonable agreement not only with the pullout force against the geogrid displacement, but also with the distributions of geogrid displacements, strains, tensile forces, and bond stresses along the geogrid length during deformation. This research demonstrates that the deformation characteristics of geogrids play an important role in the pullout tests while the interface properties play a significant role in the FEM simulations of geogrid pullout behavior. A method to obtain suitable interface parameters for designing of actual reinforced structures from the laboratory pullout tests is provided.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 129 • Issue 4 • April 2003
Pages: 361 - 371
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Oct 29, 2001
Accepted: Jul 15, 2002
Published online: Mar 14, 2003
Published in print: Apr 2003
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