Abstract
Geotextiles are permeable fabrics that can separate, filter, strengthen and drain when used in association with the soil. Natural geotextiles are more advantageous than artificial geotextiles because of its cost and environmental concern. Coir geotextiles have a life of 3 to 5 years depending on the type of coir geotextile. Many roads have been built and are being built in India using coir geotextiles as reinforcement. The main aim of this study is to study the strengthening aspects of woven coir geotextiles in weak subgrades. For this study, Sobanapuram to the Uppiliyapuram road in the district of Tiruchirappalli was selected. Two different varieties of coir geotextiles H2M5 and H2M6 were used in the study. PLAXIS 3D finite element analysis software was used for analyzing the sections with and without coir geotextile with varying GSB layer thickness under static loading. It was found that the section with H2M5 has lower displacement and strain on the subgrade than the other sections.
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