Definition(s)

Backfill

Soil material used to refill the cavity above the spudcan due to spudcan penetration.

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

Backfill

Submerged weight of all of the soil that can be present on top of the spudcan. NOTE Backfilling can occur during or after preloading. WBF,o refers to the submerged
weight of the backfilling that occurs up to achieving the preload reaction. WBF,A refers to the submerged weight of the backfilling that occurs after the maximum preload has been applied and held. Both WBF,o and WBF,A can comprise backflow and/or infill. For discussion of the effects, see A.9.3.2.1.4.

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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