Using Two Intelligent Optimization Algorithms to Estimate the Effective Stress of Unsaturated Soils

Authors

Faculty of Earth Sciences Engineering, Arak University of Technology, Iran

Abstract

     Compacted soils, which are commonly used in geotechnical engineering projects, such as earth dams, highways, embankments, and airport runways, are mostly unsaturated. To achieve a safe design in all these projects, the stress state variable in soil plays a significant role. Any proposed model for the stress state variable should express its independence from the soil properties. In saturated soils, the e effective stress is taken into account as the stress state variable. Some researchers have attempted to find the stress state variable for unsaturated soils the same as that for saturated soils with only one variable; however, they have noticed that the soil properties have been involved in the proposed models (Bishop, 1959; Escario and Saez, 1986; Khalili and Khabbaz, 1998; Lu and Likos, 2004; Rahnema et al., 2019). The purpose of this paper is to apply new intelligent methods to accurately estimate the effective stress parameter, using two gray wolf optimization (GWO) and sine-cosine (SCA) optimization algorithms.

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References

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Journal of Civil and Environmental Engineering
Volume 53.1, Issue 110 - Serial Number 110
Spring 2023
May 2023
Pages 199-210

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