Abstract:
Subgrade is the foundation layer which provide strength and stability to the structures above it. Subgrade soil often exhibits variability in strength, moisture susceptibility and compressibility, leading to potential failure like rutting and settlement. Various improvement techniques like chemical stabilization, mechanical stabilization and geosynthetics are used to enhance the strength and durability of the subgrade soil.
This article summarizes the research on the use of geosynthetics for the stabilization of subgrade soil. Geosynthetics act as a reinforcement and increases the load bearing capacity of the soil. It acts as an environment friendly, cost effective and sustainable solution for soil stabilization. An attempt is made herein to compare the effect of geosynthetic reinforced soil in terms of California Bearing Ratio (CBR) value, an key parameter in the design of pavement.
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