0

Full Content is available to subscribers

Subscribe/Learn More  >

Deep Penetration of Spudcan Foundation Into NC Clay

[+] Author Affiliations
M. S. Hossain, Z. Myhreyar, Y. Hu

Curtin University of Technology, Perth, WA, Australia

M. F. Randolph

University of Western Australia, Perth, WA, Australia

Paper No. OMAE2004-51154, pp. 329-335; 7 pages
doi:10.1115/OMAE2004-51154
From:
  • ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering
  • 23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, Parts A and B
  • Vancouver, British Columbia, Canada, June 20–25, 2004
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3743-2 | eISBN: 0-7918-3738-6
  • Copyright © 2004 by ASME

abstract

The excessive penetration of spudcan foundation in jackup rigs can be costly in offshore operation. Thus, the accurate prediction of load-penetration response becomes increasingly important in offshore design. The performance of spudcan foundation during installation, subjected to vertical loading on normally consolidated (NC) clay, is investigated physically and numerically. Experiments are carried out on kaolin clay in a drum centrifuge and FE analyses are performed using AFENA. During initial penetration, soil flows towards the ground surface and therefore heave occurs close to the spudcan edges. It flows back on top of the spudcan right after the heave passes the spudcan shoulder and shortly a substantial back flow causes the spudcan to be fully embedded. When penetration ratio (d/D) reaches 0.75, a deep failure mechanism achieves. Soil failure mechanisms play a key role for evaluating bearing response at various penetration depths. By comparing FE results with centrifuge test results, an identical bearing capacity factor of Nc = 10.5 is obtained for deeply embedded spudcan. The roughness of the soil-spudcan interface has shown 10% difference in bearing capacity when d/D is larger than 1.5.

Copyright © 2004 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In