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Published in:
2022 | OriginalPaper | Chapter
Stability Analysis of Embankments on Soft Consolidating Layered Foundation Soil
Authors : P. Radhika Bhandary, A. Krishnamoorthy, Asha U. Rao
Published in: Sustainability Trends and Challenges in Civil Engineering
Publisher: Springer Singapore
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Abstract
Embankments are being constructed for highways, railways and abutments. Sometimes the foundation soil encountered is soft consolidating soil and can cause settlements due to embankment construction. The method of combining the method of finite elements and the genetic algorithm to evaluate the safety factor of the embankment built on a soft consolidating layered soil is discussed in this paper. The foundation soil has two layers with soil properties weaker than the embankment soil. Two numerical examples are considered for the analysis. In the finite element system, the soil is modeled using the Mohr–Coulomb nonlinear model and the least safety factor is calculated at different time intervals after construction until the consolidation process is completed using the genetic algorithm. The safety factor variant from the study helps to know when the embankment is suitable and safe to use.