MODELLING OF PULL-OUT BEHAVIOUR OF GEOGRID EMBEDDED IN SAND

P. Aggarwal,∗ K.K. Gupta,∗∗ and K.G. Sharma∗∗

Keywords

Geogrid, interface element, HISS, FEM

Abstract

Geogrids have for two decades been used as reinforcing material in geotechnical engineering problems. To study the interface element behaviour, pullout tests were conducted on a geogrid embedded in the Yamuna sand at four normal pressures. The Hierarchical Single Surface (HISS) model proposed by Desai and co-workers is used to model the interface element behaviour. Modelled behaviour is predicted using finite element method (FEM) and is compared with the laboratory results.

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