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Behaviour of Geosynthetic Reinforced Unpaved Roads Under Cyclic Loading

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Abstract

This paper presents, an experimental study on the performance of geosynthetic reinforced unpaved roads under cyclic loading. A series of model-scaled tests have been conducted for varied thickness of the aggregate layer and strength of subgrade soil, with reinforcement at the interface. The reinforcement is found to have reduced the settlement substantially. However, for maximum performance improvement the thickness of the aggregate subbase appears to be equal to about the diameter of the loading area. A comparison with the unreinforced case indicates that for a given settlement, provision of reinforcement can reduce the aggregate thickness almost by about 50 %.

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Acknowledgments

The research work was undertaken at the Zentrum Geotechnik, Technische Universität München (Technical University of Munich) under Deutscher Akademischer Austauschdienst (DAAD) fellowship granted to the first and second authors, Mr. Ravi and Dr. S.K. Dash. The conducted tests are part of a pre-study for a research Project funded by the Federal Highway Research Institute on behalf of the Federal Ministry of Transport, Building and Urban Development, Germany [19].

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Authors and Affiliations

  1. Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India

    K. Ravi

  2. Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India

    Sujit Kumar Dash

  3. Zentrum Geotechnik, Technische Universität München, 81245, Munich, Germany

    Stefan Vogt & G. Braeu

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  1. K. Ravi
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  2. Sujit Kumar Dash
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  3. Stefan Vogt
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  4. G. Braeu
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Correspondence to Sujit Kumar Dash.

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Ravi, K., Dash, S.K., Vogt, S. et al. Behaviour of Geosynthetic Reinforced Unpaved Roads Under Cyclic Loading. Indian Geotech J 44, 77–85 (2014). https://doi.org/10.1007/s40098-013-0051-9

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  • DOI: https://doi.org/10.1007/s40098-013-0051-9

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