Bearing capacity of interfering multiple strip footings by using lower bound finite elements limit analysis

Kumar, Jyant and Bhattacharya, Paramita (2010) Bearing capacity of interfering multiple strip footings by using lower bound finite elements limit analysis. In: Computers and Geotechnics, 37 (5). pp. 731-736.

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Abstract

The ultimate bearing capacity of a number of multiple strip footings, identically spaced and equally loaded to failure at the same time,is computed by using the lower bound limit analysis in combination with finite elements. The efficiency factor due to the component of soil unit weight, is computed with respect to changes in the clear spacing (xi(gamma)) between the footings. It is noted that the failure load for a footing in the group becomes always greater than that of a single isolated footing. The values of xi(gamma) for the smooth footings are found to be always lower than the rough footings. The values ofxi(gamma) are found to increase continuously with a decrease in the spacing between footings. As compared to the available theoretical and experimental results reported in literature, the present analysis provides generally a little lower values of xi(gamma). (C) 2010 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Computers and Geotechnics
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Bearing capacity;Failure;Finite elements;Footings;Limit analysis;Optimization.
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	09 Aug 2010 05:06
Last Modified:	19 Sep 2010 06:13
URI:	http://eprints.iisc.ac.in/id/eprint/31219

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