A large inverted cone that is roughly circular in-plan with a shallow conical underside and a sharp protruding spigot. It is mounted at the base of a jackup’s leg, and is primarily considered to provide sliding and bearing resistance to the jackup rig when deployed into the sea bed.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards


Structure at the base of a leg supported by the soil.

Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards

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