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This analysis evaluates soil improvement techniques for subgrade in urban road construction, suggesting optimal methods for stability.
With the rapid development of urban areas, there is an increasing need for the construction of new roads, where ensuring a high-quality subgrade is crucial for the load- bearing capacity and durability of pavements. This study systematically examines methods for soil improvement, including the use of load-bearing material (CBR ≥20%), a subbase layer, and geocomposites, employing the Proctor test, California Bearing Ratio (CBR), and the modulus of compressibility (Mc). Based on experimental results, the effects of each method and their economic feasibility are evaluated, providing a basis for the optimal selection of techniques for subgrade stabilization and improvement
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Vasilevski et al. (2025) studied this question.
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