Numerical comparisons of stabilizing effects of anchors in slopes between limit equilibrium methods and elasto-plastic finite element method.:between limit equilibrium methods and elasto-plastic finite element method

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The stability of slopes stabilized by anchors was analyzed by the three-dimensional elasto-plastic finite element method, and the results were compared with those of Fellenius' method and Bishop's simplified method. The comparison indicates that the threedimensional elasto-plastic finite element method has the ability to evaluate the safety factor of the slopes reinforced with anchors. The safety factor of the three-dimensional elasto-plastic finite element method was almost the same as that of Bishop's simplified method, and was slightly larger than that of Fellenuis' method. Additionally, two simplified approaches are proposed to simulate anchors in slopes, and the results indicate that the safety factor of the proposed approaches was almost identical to that of the three-dimensional elasto-plastic finite element method where anchors and soil-anchor interaction were simulated in details.
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