Static And Dynamic Analysis Of Geogrid Reinforced Unpaved Road
Abstract
With Emphasis on greater connectivity, there is a need of unpaved road to achieve economy. In this study a large scale laboratory plate load test was conducted on a circular footing resting on with and without geogrid reinforced bed. Sand and granular materials are used as subgrade and subbase layer. The experiments were conducted for both static and dynamic loading .Test result reveals that with the addition of geogrid the settlement has reduced up to 40-60% as compared to unreinforced section. The experimental static results have validated with numerical modelling using both Finite element method and Finite difference method ( Plaxis2D and FLAC2D) and dynamic results have validated by using empirically by Giroud and Han‟s equation. Based on the experimental and numerical studies, predictive models are proposed using two recently developed artificial intelligent techniques, Genetic Programming (GP) and Multiple adoptive Regression Spline (MARS).
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