APPLICATION OF CAVITY EXPANSION THEORY TO VERTICAL STRESS INCREMENT DUE TO PULLING-OUT OF REINFORCEMENT

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  • 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
  • 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

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Other Title
  • 補強材の引抜きに伴う鉛直応力増分の空洞膨張論による解釈

Abstract

In order to predict distribution of vertical stress increment due to pulling-out of reinforcement, the cavity expansion theory was applied to the pull-out test results. First, the approach for applying the elastic solution of the cavity expansion theory which can evaluate stress state when the internal stress of a thick-walled cylinder increases was shown. And the result of the pull-out test was extended and distribution of vertical stress in a reinforced soil wall structure was predicted. As a result, at the place away from the reinforcement about 70cm or more, it was shown that vertical stress increment becomes quite small.

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