CPT correlation developed from numerical analysis to predict jack-up foundation penetration into sand overlying clay

CPT correlation developed from numerical analysis to predict jack-up foundation penetration into... Rapid uncontrolled leg penetration, or punch-through, accounts for a substantial number of accidents related to jack-up platforms, which are typically only employed at any one site for a few months before being removed and installed elsewhere. Hence, the ability to predict the load–penetration curve of a spudcan footing is particularly important in layered soil profiles, in order to identify punch-through risk prior to mobilisation of the rig. The correlation method proposed here links the spudcan load–penetration curve directly to the profile of cone tip resistance that is typically obtained as part of an offshore site investigation campaign. This contrasts with existing approaches that require input parameters that are empirically derived from site investigation measurements or necessitate additional soil element testing in an onshore laboratory. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ocean Engineering Elsevier

CPT correlation developed from numerical analysis to predict jack-up foundation penetration into sand overlying clay

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0029-8018
eISSN
1873-5258
D.O.I.
10.1016/j.oceaneng.2015.08.009
Publisher site
See Article on Publisher Site

Abstract

Rapid uncontrolled leg penetration, or punch-through, accounts for a substantial number of accidents related to jack-up platforms, which are typically only employed at any one site for a few months before being removed and installed elsewhere. Hence, the ability to predict the load–penetration curve of a spudcan footing is particularly important in layered soil profiles, in order to identify punch-through risk prior to mobilisation of the rig. The correlation method proposed here links the spudcan load–penetration curve directly to the profile of cone tip resistance that is typically obtained as part of an offshore site investigation campaign. This contrasts with existing approaches that require input parameters that are empirically derived from site investigation measurements or necessitate additional soil element testing in an onshore laboratory.

Journal

Ocean EngineeringElsevier

Published: Nov 1, 2015

References

  • Centrifuge Modelling in Geotechnics
    Gaudin, C.; Randolph, M.F.; White, D.J.
  • Zur aushubbedingten Reduktion des Drucksondierwiderstandes
    Grabe, J.; König, F.
  • CPT based prediction of foundation penetration in siliceous sand
    Pucker, T.; Bienen, B.; Henke, S.

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