Three-dimensional strength reduction and two-dimensional limit equilibrium methods of slope stability analysis

Shirago, Kelifa; Dirate, Democracy

doi:10.1016/j.heliyon.2023.e17966

Cited by 1 publication

(1 citation statement)

References 27 publications

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“…[1][2][3][4][5][6][7][8][9][10][11] The methods for evaluating the pile-reinforced slope stabreliability can be classified into two categories, that is, (1) limit equilibrium method 8,12,13 and (2) numerical methods with strength reduction strategy. 4,[14][15][16][17][18][19][20][21][22][23] The resultant reinforcement from piles to the slope stability is properly accounted for using an anti-sliding moment and or anti-sliding force in limit equilibrium method. [1][2][3] For example, following the method for calculating the anti-sliding force proposed by Ito and Matsui, 1 the effects of pile location and pile spacing on the reliability index for pile-reinforced slope stability have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic pile reinforced slope stability analysis using load transfer factor considering anisotropy of soil cohesion

Wen,

Chu,

et al. 2024

Engineering Reports

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A probabilistic limit equilibrium framework combining empirical load transfer factor and anisotropy of soil cohesion is developed to conduct pile‐reinforced slope reliability analysis. The anisotropy of soil cohesion is determined conditioned on that the thrust force direction is parallel to the major principal direction and it is easily combined with load transfer factor, which are related with soil parameters, and pile parameters. The proposed method is illustrated against a homogeneous soil slope. The sensitivity studies of pile parameters on factor of safety (FS; calculated at respective means of soil parameters) and β demonstrated that the anisotropy of soil cohesion tends to pose significant effect on reliability index β than on FS. The effect of anisotropy of soil cohesion on FS is found to be slightly different under different pile locations, whereas its effect on β is observed to be least if piles are drilled at the middle part of slope and more significant effect is observed when piles are drilled at the lower and upper part of slope. The plots from the sensitivity studies provide an alternative tool for pile designs aiming at the target reliability index β. The proposed method contributes to the pile‐reinforced slope stability within limit equilibrium framework.

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