Using Triaxial Tests to Determine the Shearing Strength of Geogrid-Reinforced Sand

Author:

Skuodis Šarūnas1,Dirgėlienė Neringa1,Medzvieckas Jurgis1

Affiliation:

1. Department of Reinforced Concrete Structures and Geotechnics , Vilnius Gediminas Technical University , Saulėtekio al. 11 , Vilnius , Lithuania

Abstract

Abstract Geogrids are widely used in civil engineering projects to reinforce road and railway structures. This paper presents research on the shearing strength of soil samples that have been reinforced with geogrids. The relationship between soil and geogrids is explored and evaluated by modeling the mechanical behavior of heterogeneous materials. For the purposes of this research, data obtained from tests of unreinforced sand samples with triaxial cells were compared with the data obtained from tests of reinforced sand samples. It was found that the shearing strength for reinforced samples was higher (from 9% to 49%) compared to unreinforced samples. Some damage to the geogrid was detected during the experiment, and for this reason, the same tests were numerically simulated for both unreinforced samples and samples reinforced with geogrids. Numerical simulations revealed the main reasons for damage to the geogrids during triaxial testing.

Publisher

Walter de Gruyter GmbH

Subject

Computers in Earth Sciences,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering

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