Numerical nonlinear analysis of Geocell reinforced soil using Duncan-Chang model

Ghazavi2, Mahmoud and Valinezhad, Nasser (2013) Numerical nonlinear analysis of Geocell reinforced soil using Duncan-Chang model. In: The 1st Iranian Conference on Geotechnical Engineering, October 2013, Ardabil, Iran.

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Abstract

Geocell can be used as a reinforcement to increase bearing capacity of a soil foundation and reduce its settlements by using its cellular structure. A three dimensional numerical study on the behavior of geocell-reinforced soil during a plate load test was conducted in order to investigate the factors influencing the stiffness and bearing capacity of multiple geocell-reinforced soil cushion. The infill soil was modeled using the Duncan-Chang model which can simulate non-linearity and stress dependency of soil. The Numerical results include the distributions of displacements in the soil and geocell walls. The load-displacement responses of reinforced soil are compared to those for soil without geocell. The results compared well with the experimental test data existing in literature. Keywords: geocell reinforcement, Duncan-Chang model, three-dimensional, nonlinear analysis

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