Reliability analysis of unsaturated soil slope stability under infiltration considering hydraulic and shear strength parameters

2019 ◽  
Vol 78 (8) ◽  
pp. 5727-5743 ◽  
Author(s):  
Thanh Son Nguyen ◽  
Suched Likitlersuang
Keyword(s):  
Shear Strength ◽  
Slope Stability ◽  
Reliability Analysis ◽  
Unsaturated Soil ◽  
Soil Slope ◽  
Shear Strength Parameters ◽  
Strength Parameters

scholarly journals Strength Characteristics and Slope Stability of Expansive Soil from Pingdingshan, China

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Ju-yun Zhai ◽  
Xiang-yong Cai
Keyword(s):  
Shear Strength ◽  
Slope Stability ◽  
Expansive Soil ◽  
Friction Angle ◽  
Natural Soil ◽  
Soil Slope ◽  
The Finite Element Method ◽  
Shear Strength Parameters ◽  
Strength Parameters ◽  
The Stability

By analyzing the characteristics of expansive soil from Pingdingshan, China, the shear strength parameters at different water contents, dry densities, and dry-wet cycles of expansive soil are obtained. It is found that, at higher soil-water content, the internal friction angle is 0° and the shallow layer of expansive soil slope will collapse and destroy; this has nothing to do with the height of the slope and the size of the slope. The parameters of soil influenced by atmosphere are the ones which have gone through dry-wet cycles, and the parameters of soil without atmospheric influence are the same as those of natural soil. In the analysis of slope stability, the shear strength parameters of soil can be determined by using the finite element method, and the stability coefficient of the expansive soil slope can be calculated.

scholarly journals Effect of soil water saturation on slope stability: Tomsk case study

2019 ◽  
Vol 98 ◽  
pp. 05005 ◽  
Author(s):  
Natalia Brakorenko ◽  
Anna Leonova ◽  
Aleksey Nikitenkov
Keyword(s):  
Shear Strength ◽  
Slope Stability ◽  
Soil Water ◽  
Water Saturation ◽  
Shear Strength Parameters ◽  
Strength Parameters ◽  
A Site ◽  
The Impact ◽  
Soil Water Saturation

We investigate in this article the impact of soil water saturation on the slope stability, using a site in Tomsk city as a case study. The dependency of the shear strength parameters of soil on the degree of soil water saturation has been demonstrated. The paper also provides equations for the calculation of slope stability coefficient under different values of soil water saturation.

A Method of Data Processing for Determining Shear Strength Parameters of Rock

2011 ◽  
Vol 97-98 ◽  
pp. 397-401 ◽  
Author(s):  
Zhi Rong Jia ◽  
Jun Shi
Keyword(s):  
Shear Strength ◽  
Slope Stability ◽  
Least Square Method ◽  
Least Square ◽  
Mechanical Parameters ◽  
Shear Strength Parameters ◽  
Strength Parameters ◽  
New Approach ◽  
Calculating Method ◽  
Main Factors

One of the main factors that influence the analytic results of slope stability is the determining of mechanical parameters. When the least square method is adopted as the method for determining the rock shear strength parameters, its precondition that the observation errors exist only in one observation variable is always being neglected. By analysis, the calculating of shear strength parameters is divided into three kind of situations, and a new approach to calculate the shear strength parameters is obtained according to the fact that the quadratic sum of distance between line and points in minimum, and the calculating formulae and applying scopes of three different calculating methods are also put forward. A calculating case shows that there are obvious differences among different calculating methods for determining the strength parameters, and it is necessary to select the calculating method based on the observation errors.

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