A novel technique to mitigate the effect of gapping on the uplift capacity of offshore shallow foundations

Mana, D. S.K., Gourvenec, S. and Randolph, M. F. (2013) A novel technique to mitigate the effect of gapping on the uplift capacity of offshore shallow foundations. Geotechnique, 63 (14), 1245-1252. (doi:10.1680/geot.12.P.173).

Record type: Article

Abstract

A flexible mat was provided around the periphery of skirted shallow foundations - a so-called 'gap arrester' - to assess the potential to mitigate the effect of gapping on uplift capacity. Results are presented from a series of drum centrifuge tests on skirted foundations with an intact skirt/soil interface, a gapped skirt/soil interface, and a gapped interface with gap arrester, subjected to undrained and sustained uplift. The results are promising, showing that the provision of an effective gap arrester preserves suction to larger foundation displacements and reduces the rate of displacement under sustained uplift, compared with the case of a gapped interface without arrester.

Text

2013 Geotechnique 64_14_1245-1252 Mana et al. - Accepted Manuscript

Available under License University of Southampton Accepted Manuscript Licence.

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