Three-Dimensional Slope Stability Charts for Frictional Fill Materials Placed on Purely Cohesive Clay

Lim, Kelvin; Lyamin, A. V.; Cassidy, Mark; Li, A.J.

doi:10.1061/(asce)gm.1943-5622.0000526

Cited by 35 publications

(12 citation statements)

References 69 publications

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“…These techniques were applied in slope stability analyses by Yu et al [55], Kim et al [56], Loukidis et al [57], Li et al [16,17], Lim et al [58] and Qian et al [59]. Kim et al [56] and Loukidis et al [57], respectively investigated the effect of seismic loading and pore pressure on slope stability.…”

Section: Previous Studiesmentioning

confidence: 98%

“…Li et al [16,17] who applied a 3D analysis to investigate cut and natural slopes obtained higher factors of safety than those obtained by Yu et al [55] who used a 2D analysis. 3D slope stability assessments for frictional fill materials placed on undrained clay were investigated by Lim et al [58]. Additionally, Qian et al [59] used the finite element limit theorem and investigated slopes with two-layered undrained clay.…”

Section: Previous Studiesmentioning

confidence: 99%

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Three-dimensional slope stability assessment of two-layered undrained clay

Lim

Lyamin

2015

Computers and Geotechnics

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Section: Previous Studiesmentioning

confidence: 98%

Section: Previous Studiesmentioning

confidence: 99%

Three-dimensional slope stability assessment of two-layered undrained clay

Lim

Lyamin

2015

Computers and Geotechnics

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“…A variety of approaches, such as the limit equilibrium method and the robust finite element method can be used to assess the stability of soil slopes. The numerical approaches such as finite element method can account for the progressive nature of the collapse and allow the failure mechanism to form without prescribing a particular shape.…”

Section: Introductionmentioning

confidence: 99%

“…[12][13][14][15][16][17] However, because of the highly variable nature of the suction, it is difficult to model its effect on the slope stability. [18][19][20][21] A variety of approaches, such as the limit equilibrium method 8,9,[22][23][24][25][26] and the robust finite element method [27][28][29][30][31][32][33][34][35][36] can be used to assess the stability of soil slopes. The numerical approaches such as finite element method can account for the progressive nature of the collapse and allow the failure mechanism to form without prescribing a particular shape.…”

Section: Introductionmentioning

confidence: 99%

3D stability of unsaturated soil slopes with tension cracks under steady infiltrations

Wang

et al. 2019

Num Anal Meth Geomechanics

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Summary Most classical approaches for evaluating the stability of soil slopes with cracks are performed under two‐dimensional (2D) condition. Three‐dimensional (3D) effect and suction‐induced effect of unsaturated soils are generally neglected in assessing the slope stability. This paper develops a 3D limit analysis method to evaluate the stability of an unsaturated soil slope with tension cracks under steady infiltrations. The boundary‐value problem is formulated based on the 3D rotational failure mechanism by taking the effects of suction, effective unit weight, and tension crack into account. A simplified method is proposed to calculate the work rate of unsaturated soil weight. A layer‐wise summation method is developed based on the divergence theorem to calculate the internal energy dissipation rate. Detailed discussions are conducted to investigate the effects of suction and Poisson's ratio on the stability of unsaturated soil slopes. Examples are given to illustrate the 3D effect, the suction‐induced effect as well as the effects of infiltration and water in cracks on the slope stability.

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“…Limit analysis can also use to analyze embankment slope stability problems and the use of these methods has been incorporated into the research such as in [8,9,10,11]. On the other hand, some researchers have studied in order to find solutions to the case of layered soil slope and cohesive-frictional slope such as in [12,13]. However, there are not many researches on the solution which is obtained from the analysis of embankment slope which is filled of sand and is placed on purely cohesive clay by using finite element limit analysis.…”

Section: Introductionmentioning

confidence: 99%

Analysis of embankment slope stability: the comparison of finite element limit analysis with limit equilibrium methods

Yingchaloenkitkhajorn

2019

MATEC Web Conf.

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This paper presented the analysis of embankment slope stability by considering the problem of embankment slope stability with special effects that it was filled with sand and was placed on purely cohesive clay. The finite element limit analysis of two-dimensional plane strain was employed to analyze the stability of this problem. The embankment slope height (H), the depth factors (d/H) and the embankment slope angle (β) for the finite element limit analysis of sand was modeled as a volume element with the properties of Mohr-Coulomb material in drained condition. And the clay was modeled as a volume element with the properties of Tresca material in undrained condition where the parameters were soil unit weight (γ), undrained shear strength (su) and friction angle (φ′). Parametric studies consisted of three dimensionless variables including depth factors (d/H), friction angle (φ′) and embankment slope angle (β). Results were summarized in the form of the dimensionless stability number (su/γH(FS)) and the design chart and application were presented. In addition, the comparison of the solution of stability number with the limit equilibrium methods and the failure mechanisms were also proposed in this paper.

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Three-Dimensional Slope Stability Charts for Frictional Fill Materials Placed on Purely Cohesive Clay

Cited by 35 publications

References 69 publications

Three-dimensional slope stability assessment of two-layered undrained clay

Three-dimensional slope stability assessment of two-layered undrained clay

3D stability of unsaturated soil slopes with tension cracks under steady infiltrations

Analysis of embankment slope stability: the comparison of finite element limit analysis with limit equilibrium methods

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