Journal ArticleDOI
A new double reduction method for slope stability analysis
Bing Bai,Wei Yuan,Xiaochun Li +2 more
TLDR
In this paper, a new double reduction method, including a detailed calculation procedure and a definition of FOS for slope stability was developed based on the understanding of strength reduction method (SRM).Abstract:
The core of strength reduction method (SRM) involves finding a critical strength curve that happens to make the slope globally fail and a definition of factor of safety (FOS). A new double reduction method, including a detailed calculation procedure and a definition of FOS for slope stability was developed based on the understanding of SRM. When constructing the new definition of FOS, efforts were made to make sure that it has concise physical meanings and fully reflects the shear strength of the slope. Two examples, slopes A and B with the slope angles of 63° and 34° respectively, were given to verify the method presented. It is found that, for these two slopes, the FOSs from original strength reduction method are respectively 1.5% and 38% higher than those from double reduction method. It is also found that the double reduction method predicts a deeper potential slide line and a larger slide mass. These results show that on one hand, the double reduction method is comparative to the traditional methods and is reasonable, and on the other hand, the original strength reduction method may overestimate the safety of a slope. The method presented is advised to be considered as an additional option in the practical slope stability evaluations although more useful experience is required.read more
Citations
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Journal ArticleDOI
Consistency analysis of Hoek–Brown and equivalent Mohr–coulomb parameters in calculating slope safety factor
Yifan Chen,Hang Lin +1 more
TL;DR: In this article, the consistency of the Hoek-Brown (HB) and equivalent Mohr-Coulomb (MC) parameters in calculating slope safety factor remains to be further explored and confirmed.
Journal ArticleDOI
Limit equilibrium method (LEM) of slope stability and calculation of comprehensive factor of safety with double strength-reduction technique
TL;DR: In this paper, a double strength reduction (DSR) technique was used to calculate the comprehensive factor of safety (FOS) of slope. And the results showed that the DSR technique tends to be more unsafe than the traditional uniform strength-reduction (USR).
Journal ArticleDOI
Limit Equilibrium Analysis of Slope Stability with Coupling Nonlinear Strength Criterion and Double-Strength Reduction Technique
Dong-ping Deng,Liang Li +1 more
Journal ArticleDOI
Strength Reduction Method for Slope Stability Analysis Based on a Dual Factoring Strategy
Journal ArticleDOI
Modified Double-Reduction Method considering Strain Softening and Equivalent Influence Angle
TL;DR: Based on linear softening model and weighted average hypothesis, a modified double-reduction method is established in this paper, where the contribution scaling factor μ (defined as the weighted ratio of Fc and Fφ) is proposed, which promotes the solution of respective weighted coefficients wc and wφ of two reduction factors by combining θe.
References
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Journal ArticleDOI
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D. V. Griffiths,P. A. Lane +1 more
TL;DR: In this article, the authors describe several examples of finite element slope stability analysis with comparison against other solution methods, including the influence of a free surface on slope and dam stability, and Graphical output is included to illustrate deformations and mechanisms of failure.
Journal ArticleDOI
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Journal ArticleDOI
Finite element slope stability analysis by shear strength reduction technique
Tamotsu Matsui,Ka-Ching San +1 more
TL;DR: In this paper, a shear strength reduction technique for finite element slope stability analysis was developed by the authors, where the slope failure is defined according to the shear strain failure criterion.
Journal ArticleDOI
Slope stability analysis based on elasto-plastic finite element method
Hong Zheng,Defu Liu,Chunbo Li +2 more
TL;DR: In this paper, a so-called "sin 1 − 2" inequality is proved for any elasto-plastic material satisfying Mohr-Coulomb's yield criterion, and a robust numerical solution for the initial value problem is given in conjunction with the necessary and sufficient condition ensuring the convergence of solution.
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