Auteur D. J. White
Documents disponibles écrits par cet auteur (10)
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Article : texte imprimé
N. Boukpeti, Auteur ; D. J. White, Auteur ; M. F. Randolph, Auteur |This paper considers a simple one-dimensional model of a submarine slide at a steady state. From equilibrium relations, the distributions of shear stress, velocity and strain rate across the slide thickness are determined analytically for two ra[...]
Article : texte imprimé
K. Krost, Auteur ; S. M. Gourvenec, Auteur ; D. J. White, Auteur |When a pipeline is laid on a soft clay seabed, excess pore pressure is generated. During the subsequent dissipation process, the effective stress at the pipe–soil interface and the available axial pipe–soil resistance rise. This ‘set-up' of axia[...]
Article : texte imprimé
R. S. Merifield, Auteur ; D. J. White, Auteur ; M. F. Randolph, Auteur |The as-laid embedment of an on-bottom pipeline strongly influences the resulting thermal insulation, and the resistance to subsequent axial and lateral movement of the pipeline. Reliable assessment of these parameters is essential for the design[...]
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Z. J. Westgate, Auteur ; D. J. White, Auteur ; M. F. Randolph, Auteur |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[...]
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C. M. Martin, Auteur ; D. J. White, Auteur |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[...]
Article : texte imprimé
M. F. Randolph, Auteur ; D. J. White, Auteur ; Y. Yan, Auteur |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. Y. Cheuk, Auteur ; D. J. White, Auteur |The as-laid embedment of a seabed pipeline is an important design parameter. As a pipe is laid on the seabed it oscillates, owing to vessel motion and hydrodynamic loading of the hanging pipe. This movement significantly increases the pipe embed[...]
Article : texte imprimé
S. Chatterjee, Auteur ; M. F. Randolph, Auteur ; D. J. White, Auteur |Offshore pipelines in deep water are generally laid directly on the seabed, without any additional stabilisation measures. Design parameters that determine the soil resistance to lateral and axial motion of the pipeline are a function of the amo[...]
Article : texte imprimé
D. J. White, Auteur ; H. R. C. Dingle, Auteur |The large-amplitude lateral soil resistance between an on-bottom pipeline and the seabed is an important design parameter in assessing pipeline behaviour during lateral thermal buckling or under the impact of a submarine slide. This paper descri[...]
Article : texte imprimé
C. Y. Cheuk, Auteur ; D. J. White, Auteur ; M. D. Bolton, Auteur |Reliable design against upheaval buckling of offshore pipelines requires the uplift response to be predicted. This paper describes a model-scale investigation into the mechanisms by which uplift resistance is mobilized in silica sand, and illust[...]
