Limit Equilibrium Slope Stability Assessment Considering Progressive Failure

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Other Title
  • 極限平衡法に基づく進行性破壊を考慮した斜面安定評価
  • キョクゲン ヘイコウホウ ニ モトヅク シンコウセイ ハカイ オ コウリョ シタ シャメン アンテイ ヒョウカ

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Description

Two different approaches, i. e. iterative procedure and load-incremental procedure are developed for the analysis of progressive failure of slopes, based on the limit equilibrium frameworks. In the former approach, self-weight of slope material together with surface load, if any, are simultaneously applied and iterative calculations are used until convergent solution is reached. On the other hand, total load including the self-weight is divided into many incremental steps, in the latter approach, and with each load-incremental step, analysis is repeated up to the final loading condition. Both procedures define local safety factor at the base of each slice to consider progressive, local failure and its evolution. Application shows that either of the procedures captures the behavior of progressive failure of slopes.

Journal

  • Landslides

    Landslides 38 (3), 180-186, 2001

    The Japan Landslide Society

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