INCREMENT OF SHEAR STRENGTH DUE TO PULL-OUT OF REINFORCEMENT

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  • UMEZAKI Takeo
    国際ジオシンセティックス学会日本支部 信州大学工学部社会開発工学科
  • KAWAMURA Takashi
    国際ジオシンセティックス学会日本支部 信州大学工学部社会開発工学科

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Other Title
  • 補強材の引抜きに伴うせん断強度の増加特性

Abstract

Based on vertical stress increment due to pull-out of reinforcement, a model to evaluate shear strength on sliding surface in a reinforced soil structure was re-proposed. In order to verify the mechanism, a series of biaxial compression test during pulling-out of reinforcement was carried out. Based on test results, it was shown that the increment of shear strength was caused by pull-out of reinforcement. Furthermore, shear strength increment was evaluated based on relative displacement and stress increment.

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