Abstract
Soil nailing is a typical method for earth reinforcement that is widely applicable to both natural and cut slopes. Basically, it is considered to increase slope stability through the tensile force resistance generated in the reinforcement materials. On the other hand, the restraint effect in reinforced zone is effective for reinforced slope stability under the condition that small allowable deformation is adopted. In this study, the mechanism of restraint effect for reinforcement bar in granular soil is investigated by experiment of base friction model and numerical analysis of distinct element method.
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