AN OUTDOOR EARTH-TANK EXPERIMENT CONCERNING FROST-HEAVING PREVENTION MEASURES FOR REINFORCED EARTH WALLS USING GEOTEXTILE MATERIALS(PART 3)

概要

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Deformation due to frost heaving has been reported on earth walls using geotextile materials in cold regions. Fullscale models have been constructed with a focus on replacement, drainage and heat insulation, and their strain and deformation were measured and compared with the conventional method. The outcome showed that strain and deformation caused by frost heave continued after thawing, and worsened when freezing occurred the following winter. In contrast, the replacement method proved to be the most effective approach for controlling frost heaverelated deformation of reinforced earth walls made using geotextile materials. It was also revealed that the technique was effective for controlling frost heave in existing reinforced earth walls with the installation of insulating materials.