# The discrete element methods is particularly useful to rock slope stability analysis . method (also known as the ordinary method of slice or Fellenius method), it is A D Slope Stability Analysis Example 1 2 start> 3 4 SLICE 5 6

The paper describes several examples of finite element slope stability analysis with comparison against other solution methods, (Fellenius, 1936), Bishop' s Modi®ed Method (Bishop, 1955),

Other Methods of Slices. There are many other stability analysis methods available besides the Fellenius Method, such as Bishop’s Method, Janbu’s Method, etc. A 45 slope is excavated to a depth of 8m in a deep layer of saturated clay of unit weight 19 kN/m. 3: the relevant shear strength parameters are c.

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Slope Failure is the movement of mass on slope (falls, slides, flows) Landslide: involves an extensive area, mild slope (<20o), movement is slow and gradual. Slope Failure: limited area, steep slope, movement is fast (sometimes with no signs) The stability of a slope should be evaluated when slope movement due to additional slopes stability for cohesion less soil; >0 (taylor, 1948) 7. the sliced method yulvi zaika 8. sliced method • this method can be used for soil in different shearing resistance along the failure plane • proposed by fellenius ,bishop, janbu, etc • assumed circular failure plane 9. regulation of slices 1. Worked examples presented at the Workshop “Eurocode 7: Geotechnical Design” Dublin, 13-14 June, 2013 Support to the implementation, harmonization and further development of the Eurocodes

The typical example of shear stress-displacement relationships. equilibrium method of slope stability can be found in [8]. B. Ordinary of Fellenius method.

## Taylor's work is based on three types of failure circles: toe circle, slope circle, and Numerical examples are presented to illustrate the use of the two design charts . The method of slices was introduced by Fellenius (1936) w

In ϕu=0 analysis, If there is a slice with small ma (for example, les Janbu generalized method . 13.17 Probabilistic slope stability analysis .

### The Fellenius (Swedish) Method Fellenius assumed that the resultant of the inter-slice forces is zero, then N’ = W cos α–ul Hence the factor of safety in terms of effective stress is given by: The components W cosαand W sinαcan be determined graphically while angle a can be calculated or measured

After Craig (2004) slope. The slope is analyzed by Fellenius [10] and Bishop [11] methods of analysis. Fig.1 Geometry of Slope rithm to solve for the factor of safety based on the above-mentioned methods, the forces acting on a typical slice is considered as shown in Fig. 2. . X Fig. 2 Forces acting on a typical slice Ordinary Method of Slices or Fellenius Method Bishop’s method which are higher compare to 1.199-2.688 when using Fellenius’s method. The percentage differences of FOS between these two methods are between 5.25% to 7.33%. For slopes in unsaturated conditions (20 kPa suctions), the FOS are between 1.550-3.702 when The paper describes several examples of finite element slope stability analysis with comparison against other solution methods, (Fellenius, 1936), Bishop' s Modi®ed Method (Bishop, 1955), METHOD OF SLICES БИЕ ДААЛТ.

After Craig (2004)
slope. The slope is analyzed by Fellenius [10] and Bishop [11] methods of analysis. Fig.1 Geometry of Slope rithm to solve for the factor of safety based on the above-mentioned methods, the forces acting on a typical slice is considered as shown in Fig. 2. .

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8.3.1.2. Other Methods of Slices. There are many other stability analysis methods available besides the Fellenius Method, such as Bishop’s Method, Janbu’s Method, etc.

fos 2.248 figure 4: example c slope result – failure surface presumed to be tangent to stratum 2 01 02 03 0-6-8-4-2 2 4 6 0 8 circle plotted: centre at 15.5, 6. fos 2.027
Some methods, such as the ordinary method of slices (Fellenius 1927) and Bishop's modified method (Bishop 1955), do not satisfy all condi-tions of equilibrium or even the conditions of force equilibrium. FIGURE 13-2 Forces on slice i.

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### methods of slope stability using limit equilibrium, finite element, and other methods are frequently reported (Duncan and Wright 2005). Under the framework of limit equilibrium, Fellenius pio-neered the slice method of slope stability in the 1920’s (Fellenius 1936). Fellenius’ original method and the updates that followed

• The method of stability analysis used (see Section 6.4.5). • The method used to determine the shear strength.

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### Fellenius/Petterson Method Verification of the Stability of the Slope The slip surface was determined. In this case the slip surface is determined by a circle with its centre at point O > x, z@ > 13 5279;18. 9443@ and a radius R 15.00 m. Points Z sp and K sp indicate the beginning and end of the slip surface. The slope was divided into vertical blocks of width b

With the development of modern method of testing of soils and stability analysis, a safe and economical design of slope is possible. The geotechnical engineer should have a thorough knowledge of the various methods for checking the stability of slopes … This very closely matches the value computed by Safe.The example modelling undertaken above strongly suggests that for slope stability problems where there is subsurface heterogeneity with materials of contrasting strength/stiffness or with inclined strata (most likely to occur in cuttings as opposed to constructed embankments), the critical slip surface is unlikely to be circular and thus normal slope stability … The first example illustrates the stability of a homogeneous slope, and the second one illustrates the stability of a two-layered slope. 4.1. Fellenius Method. The majority of slope stability problems are statically indeterminate, and, as a result, some simplifying assumptions are made for the sake of determining these problems. 2 Slope stability analysis methods 2.1 Introduction In this chapter, the basic formulation of the two-dimensional (2D) slope stability method will be discussed.