STABILITY ANALYSIS WITH NON-CIRCULAR SLIP ANALYSIS OF GEOSYNTHETIC-REINFORCED SLOPES

  • SHINODA Masahiro
    防衛大学校システム工学群 建設環境工学科,准教授(〒239-8686 神奈川県横須賀市走水1-10-20)
  • MIYATA Yoshihisa
    防衛大学校システム工学群 建設環境工学科,教授(〒239-8686 神奈川県横須賀市走水1-10-20)

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  • ジオシンセティックス補強斜面の非円弧安定解析法
  • ジオシンセティックス ホキョウ シャメン ノ ヒエンコ アンテイ カイセキホウ

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Abstract

A slope stability analysis method has a long history and various stability method have been proposed since the Fellenius method proposed in the 1930s. In practice, a circular slip surface has been generally used to calculate a safety factor, however, for evaluating the stability of reinforced slopes that have complex strata with weak layers, the safety factors obtained by using this method are not always the minimum values. In this study, a calculation method of the safety factor with a noncircular slip surface in unreinforced and reinforced slopes is proposed using a limit equilibrium of Spencer's method. To validate the proposed method, the calculated safety factor by the proposed method compares with the previously presented results.

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