Abstract
This paper utilizes a finite difference code FLAC to study bearing capacity factor N γ for ring footings in cohesionless, frictional and ponderable soil. The present soil model employs Mohr–Coulomb yield criterion and associative flow rule. The value of N γ is found to decrease significantly with an increase in r i /r o, which is the ratio of internal radius to external radius of the ring. The value of N γ for a rough ring footing, especially for lager values of φ, is obviously higher than that for a smooth footing. The results are compared with those available in the literature.
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