Charts for estimating strength parameters from slips in homogeneous slopes

Jiang, Jing-Cai; Yamagami, Takuo

doi:10.1016/j.compgeo.2006.07.005

Cited by 44 publications

(16 citation statements)

References 15 publications

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“…The modified Bishop method is applied widely in practical engineering projects [ 21 – 23 ]. As a limit equilibrium method, this method is not confined to the shape of failure surface and possesses relatively high precision.…”

Section: Hoek-brown Equivalent Limit Equilibrium Methodsmentioning

confidence: 99%

Slope Stability Analysis Using Limit Equilibrium Method in Nonlinear Criterion

Lin

Zhong

Xiong

et al. 2014

The Scientific World Journal

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In slope stability analysis, the limit equilibrium method is usually used to calculate the safety factor of slope based on Mohr-Coulomb criterion. However, Mohr-Coulomb criterion is restricted to the description of rock mass. To overcome its shortcomings, this paper combined Hoek-Brown criterion and limit equilibrium method and proposed an equation for calculating the safety factor of slope with limit equilibrium method in Hoek-Brown criterion through equivalent cohesive strength and the friction angle. Moreover, this paper investigates the impact of Hoek-Brown parameters on the safety factor of slope, which reveals that there is linear relation between equivalent cohesive strength and weakening factor D. However, there are nonlinear relations between equivalent cohesive strength and Geological Strength Index (GSI), the uniaxial compressive strength of intact rock σ ci, and the parameter of intact rock m i. There is nonlinear relation between the friction angle and all Hoek-Brown parameters. With the increase of D, the safety factor of slope F decreases linearly; with the increase of GSI, F increases nonlinearly; when σ ci is relatively small, the relation between F and σ ci is nonlinear, but when σ ci is relatively large, the relation is linear; with the increase of m i, F decreases first and then increases.

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Section: Hoek-brown Equivalent Limit Equilibrium Methodsmentioning

confidence: 99%

Slope Stability Analysis Using Limit Equilibrium Method in Nonlinear Criterion

Lin

Zhong

Xiong

et al. 2014

The Scientific World Journal

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“…In their study, both simple slopes and infinite slopes were accounted for. It was found by Jiang and Yamagami [37] that an infinite slope has a larger factor of safety than a simple slope for a given cohesion (c 0 ), friction angle (/ 0 ) and height of slip surface.…”

Section: Limit Equilibrium Analysismentioning

confidence: 98%

“…This difference is comparable in importance with the corrections commonly made with regard to undrained shear strength (c u ), and in back analysis, may be unsafe. Jiang and Yamagami [37] pro- posed chart solutions for cohesive-frictional slopes. In their study, both simple slopes and infinite slopes were accounted for.…”

Section: Limit Equilibrium Analysismentioning

confidence: 99%

Limit analysis solutions for three dimensional undrained slopes

Li¹,

Merifield²,

Lyamin³

2009

Computers and Geotechnics

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“…In the finite element analysis of slope stability, the main physical parameters of the slope to be considered include volume weight γ, elastic modulus E, Poisson's ratio μ, shear strength and tensile strength [16] [17] . In this paper, we select a mine as an example for slope analysis, which involves both elastic and elastic-plastic materials.…”

Section: Instance Analysismentioning

confidence: 99%

Finite element strength reduction analysis on slope stability based on ANSYS

Chen¹

2017

EESRJ

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In this paper, we introduce a slope stability analysis method based on the finite element strength reduction method and discuss the basic principle of this method, physical significance of the safety factor, selection of yield criteria and criteria for slope failure. In the instance, we continuously reduce the slope strength parameter and then substitute it into the finite element program for slope stability calculation until the calculation does not converge. By this point, the reduction factor is the safety factor of the slope. The results show that, when the reduction factor keeps increasing and reaches a certain value, the plastic strain in the slope starts from the bottom to the top, putting the slope under the ultimate state. At this point, the reduction factor is the safety factor. The finite element strength reduction method is very applicable to slope stability analysis.

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Charts for estimating strength parameters from slips in homogeneous slopes

Cited by 44 publications

References 15 publications

Slope Stability Analysis Using Limit Equilibrium Method in Nonlinear Criterion

Slope Stability Analysis Using Limit Equilibrium Method in Nonlinear Criterion

Limit analysis solutions for three dimensional undrained slopes

Finite element strength reduction analysis on slope stability based on ANSYS

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