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Analysis of Slope Stability with Imprecise Soil Properties Using Uncertain Sets
- Source :
- Mathematical Problems in Engineering, Vol 2019 (2019)
- Publication Year :
- 2019
- Publisher :
- Hindawi Limited, 2019.
-
Abstract
- There are many uncertainties with respect to the assessment of slope stability, and those associated with soil properties should be given particular attention. The uncertainty theory provides an alternative to treat these uncertainties using parochial cognitive sources. A novel methodology is proposed to evaluate the stability of slopes based on an uncertain set. The soil properties involved in the deterministic methods, i.e., shear strength parameters and unit weight, are expressed as uncertain sets, and their membership functions can be assumed to be triangular or trapezoidal for a homogeneous or two-layered slope, respectively. The parameter values of membership functions are designed according to the means and variations of the soil properties, and then the expected safety factor can be calculated through the operational laws. Two numerical examples including a homogeneous slope and a two-layered slope illustrate the suitability of the proposed methodology. The relationship between the variation in the safety factor and the changes in the soil properties is investigated; moreover, the determination of the parameter values of membership is also discussed.
- Subjects :
- 0209 industrial biotechnology
Safety factor
Article Subject
Differential equation
lcsh:Mathematics
General Mathematics
General Engineering
Uncertainty theory
02 engineering and technology
lcsh:QA1-939
Stability (probability)
020901 industrial engineering & automation
lcsh:TA1-2040
Slope stability
0202 electrical engineering, electronic engineering, information engineering
Applied mathematics
020201 artificial intelligence & image processing
Soil properties
lcsh:Engineering (General). Civil engineering (General)
Shear strength (discontinuity)
Random variable
Mathematics
Subjects
Details
- ISSN :
- 15635147 and 1024123X
- Volume :
- 2019
- Database :
- OpenAIRE
- Journal :
- Mathematical Problems in Engineering
- Accession number :
- edsair.doi.dedup.....c84509496000390bf17fdf51803d3957