PERFORMANCE OF UNPAVED ROAD REINFORCED WITH TRIAXIAL GEOGRIDS SUBJECTED TO BEARING PRESSURE
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Abstract
This article studies the effectiveness of unpaved roads reinforced with triaxial geogrids. The unpaved road comprises subgrade and base layers. The subgrade and base considered in this study were low-plasticity clay and crust rock, respectively. The model test was performed in a square steel mold 1.5 m in width and 1.2 m in height. The subgrade thickness was fixed at 0.8 m, whereas the crust rock thicknesses varied from 0.05 to 0.2 m. The triaxial geogrid was inserted between the subgrade and the crust rock layers. The static bearing capacity tests were conducted on the unpaved road models according to the standard TIS 1253-62. The results show that using the triaxial geogrid enhances bearing capacity by 1.46 times and reduces the crust rock thicknesses. Thus, the triaxial geogrid reinforcement can be effectively utilized in unpaved road construction.
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The published articles are copyright of the Engineering Journal of Research and Development, The Engineering Institute of Thailand Under H.M. The King's Patronage (EIT).
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