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Keywords: foundation
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Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-03
... 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 in...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-04
... 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 to...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-06
... noteworthy 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-09
... deep foundations. Under gravity based structures (GBS) it can cause problems of flotation and subsequent base sliding and internal over pressure. Storm waves can liquefy shallow gaseous deposits. Gas venting facilities are essential but not always provided on offshore structures. The paper discusses...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-26
...1. Introduction The oil and gas industry has developed various pro- cedures for considering the effects of large wave cy- clic loads on foundations for offshore structures. De- sign guidelines include the American Petroleum Institute (API) RP 2GEO (2011); Det Norske Veritas (DNV) Foundations (1992...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-43
... 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-44
... 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-49
... 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-54
... 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-55
...1. Introduction Pile foundations are usually designed to support highway bridges and other structures, primarily to safely carry superstructure axial loads deep into the ground. However, in many cases structures (such as bridges, quays and harbours) are subjected to lateral loads caused by high...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-57
... 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-66
... angle (φ) that, when used in the conventional bearing capacity equations, matches the penetration results at previous sites. field data robert overy shell uk ltd subsea system schmertmann spudcan widest section relative density contribution foundation penetration compression spudcan...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-205
... formation 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-279
... 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-303
... 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 by...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-333
... sector, southern North Sea (Figure 1). The Skiff platform is an innovative slim-line design that was installed with a jack-up rig in April 2000 immediately before the wells were drilled (Figure 2). The jacket structure was placed on the seabed and tied back to the rig whilst the piled foundations were...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-359
...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 for...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-383
... 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...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-413
... riser tower foundations having similar dimensions, the comparison of their installation behaviour is particularly relevant for highlighting some specific features. The Site A installation results were significantly below predictions, because of (a) reduced friction along partly painted steel piles and...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-479
...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. They...

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