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Vertical Uplift Resistance of a Group of Two Coaxial Anchors in Clay

Kumar, Jyant and Sahoo, Jagdish Prasad (2012) Vertical Uplift Resistance of a Group of Two Coaxial Anchors in Clay. In: JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 138 (3). pp. 419-422.

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Official URL: http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.00005...

Abstract

The vertical uplift resistance for a group of two horizontal coaxial rigid strip anchors embedded in clay under undrained condition has been determined by using the upper bound theorem of limit analysis in combination with finite elements. An increase of undrained shear strength of soil mass with depth has been incorporated. The uplift factor F-c gamma has been computed. As compared to a single isolated anchor, a group of two anchors provides greater magnitude of the uplift resistance. For a given embedment ratio, the group of two anchors generates almost the maximum uplift resistance when the upper anchor is located midway between ground surface and the lower anchor. For a given embedment ratio, F-c gamma increases linearly with an increase in the normalized unit weight of soil mass up to a certain value before attaining a certain maximum magnitude; the maximum value of F-c gamma increases with an increase in embedment ratio. DOI: 10.1061/(ASCE)GT.19435606.0000599. (C) 2012 American Society of Civil Engineers.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the ASCE
Keywords: Anchors; Clays; Failure; Finite elements; Limit analysis; Optimization
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 07 Aug 2012 05:08
Last Modified: 07 Aug 2012 05:08
URI: http://eprints.iisc.ernet.in/id/eprint/44518

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