Abstract
In this paper, new limit analysis solutions for the bearing capacity of ring foundations on rock masses are presented, where the Hoek–Brown yield criterion is used as a failure criterion for rock masses. The lower and upper bound finite element limit analysis is employed to derive the bearing capacity solutions of ring foundations on rock masses. The ring foundation has internal and external radii. The considered dimensionless parameters include the ratio between the internal radius and the external radius, the yield parameter, and the geological strength index of rock, where the effects of these dimensionless parameters on the bearing capacity factor are investigated. It is found that a high yield parameter or a high geological strength index yields a high value of the bearing capacity factor. When the ratio between the internal radius and the external radius is around 0.25, the bearing capacity factor becomes the largest. The collapse mechanisms of this problem are also examined and discussed in the present study.
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10 June 2021
A Correction to this paper has been published: https://doi.org/10.1007/s40891-021-00290-x
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The first author would like to acknowledge Thammasat School of Engineering, Thammasat University, for the graduate scholarship.
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WY acquired methodology, software and contributed to the investigation and data curation. SK acquired supervision, methodology, and contributed to conceptualization, writing—original draft. VQL provided resources and contributed to writing—review and editing.
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Yodsomjai, W., Keawsawasvong, S. & Lai, V.Q. Limit Analysis Solutions for Bearing Capacity of Ring Foundations on Rocks Using Hoek–Brown Failure Criterion. Int. J. of Geosynth. and Ground Eng. 7, 29 (2021). https://doi.org/10.1007/s40891-021-00281-y
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DOI: https://doi.org/10.1007/s40891-021-00281-y