# A Static Equilibrium Method Of Calculating The Seismic Stability Of Free Homogeneous Slopes

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### 11. THE STABILITY OF SLOPES

This method of slope stability analysis is not widely used since it has been found that plane surfaces of sliding are observed only with very steep slopes, and for relatively flat slopes the surfaces of sliding are almost always curved. EXAMPLE Referring to Fig. 4.2 H = 16m tan i = 2/3 tan θ = 1/3 c = 10kPa φ = 35˚

### Static and Dynamic Behavior of Earthen Slopes in the

In this sense the seismic slope stability is dependent on the static slope stability. The most commonly used methods of slope stability analysis are the limit equilibrium methods. Stress-deformation analyses, using the finite element method, are performed more rarely, especially in the case of major projects. Limit-equilibrium methods.

### Seismic Coefficients for Pseudostatic Slope Analysis

Limit equilibrium analysis has traditionally been used to assess the stability of slopes. This procedure consists of analyzing the cross section of the potential slide mass, called the failure surface (refer to line ab in Figure 1), as either a circular or non-circular surface. The

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### Solutions chs 1-5

The mass of water displaced by the soil particles is given by (m4-m1) - (m3-m2) = (50.03) - (42.48) = 7.55g. Gs = (m2-m1)/[(m4-m1)-(m3-m2)] = (20.00g)÷(7.55g) = 2.65. For the sample of natural soil, the unit weight is equal to the actual weight divided by the total volume,

### Missouri University of Science and Technology Scholars' Mine

SYNOPSIS: A unified procedure for calculating active and passive earth pressures on retaining structures for static and seismic (pseudostatic) loading conditions is presented. The procedure is based on the limit equilibrium method, uses the method of slices, and satisfies complete statics.

### A simplified pseudo-static seismic analysis of reinforced

research on seismic stability of unreinforced soil structures by limit equilibrium method has popularity gained due to their inherent advantage over the conventional retaining walls in performance [1-5]. Caltabiano et al. [1] used the pseudo-static methods for unreinforced soil-retaining walls under seismic condition. Their solution considered the