Capacity of grillage foundations under horizontal loading / J. A. Knappett in Géotechnique, Vol. 62 N° 9 (Septembre 2012)  

Capacity of grillage foundations under horizontal loading [texte imprimé] / J. A. Knappett, Auteur ; M. J. Brown, Auteur ; M. F. Bransby, Auteur . - 2012 . - pp. 811 –823.
Génie Civil
Langues : Anglais (eng)
in Géotechnique > Vol. 62 N° 9 (Septembre 2012) . - pp. 811 –823

Mots-clés :	Sands Footings/foundations Offshore engineering Plasticity Model tests
Résumé :	Grillage foundations are an alternative to solid surface mudmats for supporting seabed infrastructure, offering improved hydrodynamic performance and savings in foundation material. Recent research has demonstrated that grillages can be designed to have similar vertical bearing capacity to a mudmat with the same footprint. This is extended herein by: (a) determining grillage performance under horizontal loading at constant vertical load (V-H); (b) the application and development of existing plasticity-based models for predicting performance; (c) comparing the V-H behaviour with surface mudmats; and (d) discussing the implications for design. Experimental tests were conducted in sands over a range of densities and in two different modes, representing different installation procedures. In over-penetrated tests, the foundations were installed to achieve a vertical bearing capacity V 0, followed by horizontal loading at a constant vertical load with V
ISSN :	0016-8505
En ligne :	http://www.icevirtuallibrary.com/content/article/10.1680/geot.12.OG.012