... foundation experiment permeability flow in porous media reduction effective stress offshore structure water pressure reservoir characterization bearing pressure bearing capacity hydraulic gradient wave trough calculation total stress coefficient submerged foundation fluid...

... cyclic response fontainebleau sand stability diagram installation research and development four-year joint industry project cyclic loading diagram offshore technology conference objective solcyp history interface friction cyclically foundation consideration loading london...

... Abstract Offshore shallow foundations may be subjected to uplift due to overturning or buoyancy loading. Peripheral (and often internal) skirts can enable transient tension loads to be resisted because of negative excess pore pressures developed between the underside of the foundation top cap...

... Abstract The performance of a hybrid foundation for subsea systems, defined as a shallow skirted mat foundation featuring short piles at the mat corners, has been investigated through a series of centrifuge tests. The foundation, with and without corner piles, was subjected to eccentric...

... Abstract The vast majority of offshore wind farms constructed to date are supported on monopile foundations. These monopiles consist of a large diameter (>4m) open-ended steel piles driven into the seabed to a specified penetration. While laterally loaded piles have been used for many years...

... the pile-driving process. Long-term cessation can lead to excess pore water dissipation and soil strength setup. reservoir geomechanics deep foundation cessation pile driving bearing capacity dissipation back-analysis method strength setup pile bearing capacity foundation excess pore...

... Abstract A new Interstate 10 (I-10) Twin Span Bridge over Lake Pontchartrain was recently constructed to replace the old bridge that was heavily damaged by Hurricane Katrina in 2005. A large portion of the bridge is supported by batter pile group foundations. To evaluate the performance...

... Abstract Current offshore foundation technology is being transferred successfully to the renewable energy sector. Still, there is clearly scope for developing foundations that are more tuned to the needs of the renewable power systems such as wind turbines. One such approach is the hybrid...

... significance as relative density reduces. The proposed method in this paper is based on that given by Schmertmann (1978) for the settlement of shallow foundations on sand. 3.1 The Schmertmann method A CPT based method to predict settlement of shal- low foundations on sand was first published by Schmertmann...

... and reliabil- ity. He had a profound influence on offshore practice and was the contributing principal author to several foundation sections of the API RP 2A-WSD Planning, Designing, and Constructing Fixed Off- shore Platforms. He authored the sections for the de- sign of shallow foundations (1976), piles...

... and interest engineering geol- ogy, site investigation and foundation design. On further reflection however I concluded that Bram de- lighted in developing engineers who followed their own interests, not in his image, but in their own unique ways. That is the kind of leader he was. This epiphany led me...

... that long term monitoring of the Hutton TLP did not indicate any undue foundation movements; Stock et al. (1992). It has since become common to consider any axial degradation due to cycling as being balanced by strain rate effects, with CYCLIC LOADING OF OFFSHORE PILES: POTENTIAL EFFECTS AND PRACTICAL...

... or between two cas- ings doesn t stop this migration process2. In parallel to the problem of high well annuli pressures, high pressures in the foundation skirts had been observed SHALLOW GAS AND ITS MULTIPLE IMPACT ON A NORTH SEA PRODUCTION PLATFORM TI Tjelta and G Svanø Statoil, Stavanger, Norway JM Strout...

... layered soil profiles, this paper suggests a means to incorporate these effects into the design of spudcan bearing capacity. Introduction The design of spudcan foundation is usually considered analogous to that of the conventional preembedded shallow foundation despite its large diameter, conical base...

..., as this is arguably the most important issue and has proved to be the focus for most discussion. Consideration is also given to the assessment of load displacement behaviour. While movement predic- tion and control is emphasised more strongly in onshore foundation projects, as reflected in the recent review...

... ABSTRACT This paper deals with the design and installation of the foundation piles for the Skiff platform in the UK southern North Sea. The structure is novel because the well conductors are the primary platform foundation. The conductors were installed by drill-drive methods, for which...

...Proceedings of the 6th International Offshore Site Investigation and Geotechnics Conference: Confronting New Challenges and Sharing Knowledge, 11 13 September 2007, London, UK 359 1. Introduction The pile capacity methods recommended by API have been successfully used to design foundations...

... of wind energy converters up to several hundred plants per wind farm. These challenging conditions require an economic, sustainable and reliable foundation design. In general the choice of the foundation type depends on the loading characteristics and on the soil mechanical properties at the specific...

... prediction strength fpso resistance foundation skirt wall subsea system anchor suction pile deepwater site colliat passive suction submerged weight penetration fpso pile ring stiffener mooring system riser tower fpso suction pile floating production system upstream oil...

...Proceedings of the 6th International Offshore Site Investigation and Geotechnics Conference: Confronting New Challenges and Sharing Knowledge, 11 13 September 2007, London, UK 479 1. Background Skirted foundations have application for a variety of off- shore structures, as shown in Figure 1...