Géotechnique, Vol. 62 N° 9. Géotechnique - Septembre 2012
| Titre : | Géotechnique, Vol. 62 N° 9. Géotechnique - Septembre 2012 |
| Type de document : | Bulletin |
| Paru le : | 12/09/2012 |
Dépouillements
Article : texte imprimé
N. Sultan, Auteur ;
V. De Gennaro, Auteur ;
A. Puech, Auteur
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Understanding how free gas modifies the mechanical behaviour of marine plastic sediments remains a challenging issue. Special triaxial tests were carried out on natural sediments recovered from the Gulf of Guinea. Special attention was devoted t[...]
Article : texte imprimé
S. S. Torisu, Auteur ;
J. M. Pereira, Auteur ;
V. De Gennaro, Auteur
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Current developments in deepwater offshore oil production in the Gulf of Guinea (GoG) make it necessary to characterise the mechanical behaviour of the GoG deepwater sediments better. This paper examines some aspects of the strain-rate-dependent[...]
Article : texte imprimé
N. Kovacevic, Auteur ;
R. J. Jardine, Auteur ;
D. M. Potts, Auteur
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This paper describes advanced finite-element simulations of a geologically active and periodically unstable 700 m high underwater escarpment located in the Gulf of Mexico that has been created by uplifting salt diapirs combined with sediment dep[...]
Article : texte imprimé
Z. J. Westgate, Auteur ;
D. J. White, Auteur ;
M. F. Randolph, Auteur
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Reliable prediction of the embedment of untrenched subsea pipelines is of increasing importance as hydrocarbon developments progress into deeper waters, located further from shore. Pipeline design issues such as hydrodynamic stability, lateral b[...]
Article : texte imprimé
Y. Xie, Auteur ;
C. F. Leung, Auteur ;
Y. K. Chow, Auteur
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The installation and extraction of jack-up spudcans may induce significant stresses in the adjacent piles supporting the permanent jacket platforms at an offshore site. In the present study, centrifuge model tests were conducted to investigate t[...]
Article : texte imprimé
J. A. Knappett, Auteur ;
M. J. Brown, Auteur ;
M. F. Bransby, Auteur
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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[...]
Article : texte imprimé
M. J. Cassidy, Auteur ;
C. Gaudin, Auteur ;
M. F. Randolph, Auteur
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Suction-embedded plate anchors (SEPLAs) have been developed to answer the growing need for anchors to withstand significant vertical loading. The concept combines the advantage of suction caissons (known penetration depth and location) and ‘drag[...]
Article : texte imprimé
M. F. Randolph, Auteur ;
D. J. White, Auteur ;
Y. Yan, Auteur
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Axial pipe–soil resistance is an important aspect of deep-water pipeline design, since it influences the longitudinal and lateral buckling responses under thermally induced expansion and contraction of the pipeline. Experimental evidence has sho[...]
Article : texte imprimé
C. M. Martin, Auteur ;
D. J. White, Auteur
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The ultimate bearing capacity of a rigid, plane-strain pipe segment embedded in undrained clay is studied using numerical limit analysis. The pipe is considered to be ‘wished in place' at invert penetrations ranging from zero to five pipe diamet[...]
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