Bearing Capacity Factors for Ring Foundations
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 141, Issue 10
Abstract
Bearing capacity factors because of the components of cohesion, surcharge, and unit weight, respectively, have been computed for smooth and rough ring footings for different combinations of and by using lower and upper bound theorems of the limit analysis in conjunction with finite elements and linear optimization, where and refer to the inner and outer radii of the ring, respectively. It is observed that for a smooth footing with a given value of , the magnitude of the collapse load decreases continuously with an increase in . Conversely, for a rough base, for a given value of , hardly any reduction occurs in the magnitude of the collapse load up to , whereas for , the magnitude of the collapse load, similar to that of a smooth footing, decreases continuously with an increase in . The results from the analysis compare reasonably well with available theoretical and experimental data from the literature.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 141 • Issue 10 • October 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Jan 3, 2015
Accepted: Apr 8, 2015
Published online: May 22, 2015
Published in print: Oct 1, 2015
Discussion open until: Oct 22, 2015
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