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Undrained Stability Analysis of Spherical Cavities in Non-homogeneous Clay
https://orcid.org/https://orcid.org/0000-0001-8289-3647
https://orcid.org/http://orcid.org/0000-0002-1760-9838
This paper presents numerical solutions of the undrained stability of spherical cavities in clay derived using lower and upper bounds from finite element limit analysis. The undrained shear strength of clay is assumed to be linearly increased with depth. The solutions consider the influences of three dimensionless parameters: the cover-depth ratio, the normalized overburden pressure, and the normalized gradient of undrained shear strength. The influences of these dimensionless parameters on failure mechanisms are also investigated. The proposed numerical solutions of the dimensionless factor are validated with the existing solutions provided by other authors. Finally, the new equation for predicting the stability factors from cohesion, unit weight, and strength gradient of undrained clay is presented in the forms of nonlinear functions, which can be practically used in geotechnical engineering analysis and design.
Undrained Stability Analysis of Spherical Cavities in Non-homogeneous Clay
https://orcid.org/https://orcid.org/0000-0001-8289-3647
https://orcid.org/http://orcid.org/0000-0002-1760-9838
This paper presents numerical solutions of the undrained stability of spherical cavities in clay derived using lower and upper bounds from finite element limit analysis. The undrained shear strength of clay is assumed to be linearly increased with depth. The solutions consider the influences of three dimensionless parameters: the cover-depth ratio, the normalized overburden pressure, and the normalized gradient of undrained shear strength. The influences of these dimensionless parameters on failure mechanisms are also investigated. The proposed numerical solutions of the dimensionless factor are validated with the existing solutions provided by other authors. Finally, the new equation for predicting the stability factors from cohesion, unit weight, and strength gradient of undrained clay is presented in the forms of nonlinear functions, which can be practically used in geotechnical engineering analysis and design.
Undrained Stability Analysis of Spherical Cavities in Non-homogeneous Clay
https://orcid.org/https://orcid.org/0000-0001-8289-3647
https://orcid.org/http://orcid.org/0000-0002-1760-9838
This paper presents numerical solutions of the undrained stability of spherical cavities in clay derived using lower and upper bounds from finite element limit analysis. The undrained shear strength of clay is assumed to be linearly increased with depth. The solutions consider the influences of three dimensionless parameters: the cover-depth ratio, the normalized overburden pressure, and the normalized gradient of undrained shear strength. The influences of these dimensionless parameters on failure mechanisms are also investigated. The proposed numerical solutions of the dimensionless factor are validated with the existing solutions provided by other authors. Finally, the new equation for predicting the stability factors from cohesion, unit weight, and strength gradient of undrained clay is presented in the forms of nonlinear functions, which can be practically used in geotechnical engineering analysis and design.
Undrained Stability Analysis of Spherical Cavities in Non-homogeneous Clay
Transp. Infrastruct. Geotech.
Likitlersuang, Suched (author) / Keawsawasvong, Suraparb (author) / Tanapalungkorn, Weeradetch (author)
Transportation Infrastructure Geotechnology ; 11 ; 152-170
2024-02-01
19 pages
Article (Journal)
Electronic Resource
English
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