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Seismic Bearing Capacity of Stone Columns in Clay Using 3-D Finite Element Limit Analysis
https://orcid.org/http://orcid.org/0000-0003-3204-3737
The use of stone columns is considered an effective method for the improvement of soft soils. Stone columns have several benefits, such as increasing the bearing capacity, reducing settlement, increasing the consolidation rate, and mitigating the liquefaction potential. Thus, the determination of the bearing capacity of stone columns under seismic conditions is of great importance. In this study, the three-dimensional finite element limit analysis with adaptive mesh was applied to study the seismic bearing capacity of a single stone column embedded in clay for different values of stone column’s geometries (i.e., diameter and length), clay’s undrained shear strengths, stone column’s friction angles, and seismic coefficients. The pseudo-static method was used for considering the seismic loading condition. It was observed that the critical slenderness ratio, i.e., the slenderness ratio in which the failure mechanism changes from punching to bulging, decreases by an increase in horizontal and upward vertical seismic coefficients. The effect of the horizontal seismic coefficient was found to be more significant than the vertical component. Furthermore, the results showed that the non-dimensional bearing capacity term decreases by an increase in the horizontal seismic coefficient.
Seismic Bearing Capacity of Stone Columns in Clay Using 3-D Finite Element Limit Analysis
https://orcid.org/http://orcid.org/0000-0003-3204-3737
The use of stone columns is considered an effective method for the improvement of soft soils. Stone columns have several benefits, such as increasing the bearing capacity, reducing settlement, increasing the consolidation rate, and mitigating the liquefaction potential. Thus, the determination of the bearing capacity of stone columns under seismic conditions is of great importance. In this study, the three-dimensional finite element limit analysis with adaptive mesh was applied to study the seismic bearing capacity of a single stone column embedded in clay for different values of stone column’s geometries (i.e., diameter and length), clay’s undrained shear strengths, stone column’s friction angles, and seismic coefficients. The pseudo-static method was used for considering the seismic loading condition. It was observed that the critical slenderness ratio, i.e., the slenderness ratio in which the failure mechanism changes from punching to bulging, decreases by an increase in horizontal and upward vertical seismic coefficients. The effect of the horizontal seismic coefficient was found to be more significant than the vertical component. Furthermore, the results showed that the non-dimensional bearing capacity term decreases by an increase in the horizontal seismic coefficient.
Seismic Bearing Capacity of Stone Columns in Clay Using 3-D Finite Element Limit Analysis
https://orcid.org/http://orcid.org/0000-0003-3204-3737
The use of stone columns is considered an effective method for the improvement of soft soils. Stone columns have several benefits, such as increasing the bearing capacity, reducing settlement, increasing the consolidation rate, and mitigating the liquefaction potential. Thus, the determination of the bearing capacity of stone columns under seismic conditions is of great importance. In this study, the three-dimensional finite element limit analysis with adaptive mesh was applied to study the seismic bearing capacity of a single stone column embedded in clay for different values of stone column’s geometries (i.e., diameter and length), clay’s undrained shear strengths, stone column’s friction angles, and seismic coefficients. The pseudo-static method was used for considering the seismic loading condition. It was observed that the critical slenderness ratio, i.e., the slenderness ratio in which the failure mechanism changes from punching to bulging, decreases by an increase in horizontal and upward vertical seismic coefficients. The effect of the horizontal seismic coefficient was found to be more significant than the vertical component. Furthermore, the results showed that the non-dimensional bearing capacity term decreases by an increase in the horizontal seismic coefficient.
Seismic Bearing Capacity of Stone Columns in Clay Using 3-D Finite Element Limit Analysis
Iran J Sci Technol Trans Civ Eng
Shafiee, Amir Hossein (author) / Salemnia, Mohammad (author)
2024-04-01
10 pages
Article (Journal)
Electronic Resource
English
Seismic Bearing Capacity of Stone Columns in Clay Using 3-D Finite Element Limit Analysis
| Springer Verlag | 2024
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