Application of Soilbags Reinforced Soft Soil Subgrade in Rural Roads
Rural roads are crucial to support agricultural modernization and ensure economic livelihood for villagers.In eastern China,soft soil subgrade poses a common challenge in rural road construction.Traditional methods used for highway soft soil subgrade are unsuitable due to high cost and low utilization of land resources.However,soilbag reinforcement is a new technology that can reinforce soft soil and increase its compressive strength.The additional cohesion resulting from the tensile forces of the bag improves the bearing capacity of the subgrade.Using soilbags filled with excavation waste to reinforce the soft soil subgrade is a cost-effective and environment friendly solution.In the paper,the principle of soilbag-reinforced soft soil subgrade is revealed through physical model tests,and the application of this technology is demonstrated on a rural road project in the suburbs of Nanjing.Through the portable drop hammer bending test and post-construction settlement observation,the practical effect of soil bag technology for treating soft soil subgrade is checked,which provides technical reference for similar projects.
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