Comparison of Geosynthetic Reinforcement Performance on Clay Soil: An Experimental Study of Variations in Placement Distance and Material Type

This study evaluates the performance of various geosynthetic materials-woven geotextile, non-woven geotextile, and geogrid-under maximum load (Pmax), geosynthetic strain (), and maximum displacement on clay soil, with variations in placement depth (5 cm, 10 cm, and a combination of 5 cm & 10 cm).Clay soil samples were compacted, and geosynthetics were placed at specified depths within the soil.Load tests were performed to measure Pmax, while geosynthetic strain () and maximum displacement (Max Displacement) were recorded to assess the geosynthetic performance.The results showed that geosynthetics significantly enhance soil performance.The woven geotextile exhibited the highest Pmax (240.695kg at a combined depth of 5 cm & 10 cm), followed by the non-woven geotextile (230.230kg at the same depth), and the geogrid (197.340kg at the same depth).For geosynthetic strain (), the highest values were recorded in the woven geotextile (1,605.553N/cm at a combined depth of 5 cm & 10 cm), followed by the non-woven geotextile (1,513.158N/cm ) and the geogrid (1,471.710N/cm ).Regarding maximum displacement, the geogrid showed the most significant displacement (3.0 cm at a depth of 5 cm).The woven geotextile had the least minor displacement (1.4 cm at a combined depth of 5 cm & 10 cm), followed by the nonwoven geotextile (2.7 cm at 5 cm).The study concludes that the woven geotextile performs best regarding Pmax, geosynthetic strain, and minimal displacement.At the same time, the geogrid shows the most significant displacement and the least favorable performance.These findings suggest that the two materials are effective for different applications.Further research should focus on the long-term performance and environmental impacts of geosynthetics.