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was performed by Push Up Units (4 Electronically ity in handling the different configurations of the Pict. 5 - 6
Synchronized Lifting Towers with 2,400 ton jacket modules which were provided with steel
capacity), that were a fully synchronized lifting stoppers positioned at 9m above the ground
system, allowing to lift entire Jackets without any (Picture 7).
risk of overloading. For each step modular barrels SPMTs took the load with the frame structure
were inserted, elevating or lowering down Jacket and lifted the jackets. The steel stoppers were
by 1 m for each step (Pictures 5 and 6). Due to welded in order to support the load of the jacket
their extreme maneuverability, SPMTs can be used during the lifting and transport operations. The
in very congested areas, such as fabrication yards, SPMTs convoy was positioned under the jacket
with ground Bearing Pressure not exceeding 10t/ modules in about 30 minutes. Fagioli after
m . executing the weighing operations by means of
2
This engineering excellence allowed Fagioli to load cells, moved the jackets from manufacturing
seamlessly deliver and subsequently load out area to the storage area, using the frame system
the jackets onto the deck of a specialist shipping explained above. Once at the storage area the
vessel for the final journey. jackets were provided with an upper grillage for
the sea transport activity by barge. After this
Heavy transport operation a 128 m barge was waiting for the load
out of No. 4 jackets.
activity in Spain
In 2021 and 2022 Fagioli was contracted for the
Fagioli was contracted by Navantia for the tran- transport and load out operations of further no. Pict. 7
sport and load out operations of Offshore Wind
Farm Jackets in Spain for a total of no.104 items
between 2017 and 2022. The jackets, weighing
between 950 and 1,200 ton, were handling by
Fagioli with other dedicated and tailor-made
structures for the load out operations onto bar-
ges.
For the first project back in 2017 the main
challenges were:
- How to speed up the load out operations in
a safety manner, considering the dimensions
and weight of the jacket modules and the fact
that barge voyages were planned for the sea
transport
- How to avoid delays due to wind and bad
weather conditions
- How to handle execute the load out activity
onto a barge, able to take the load of No. 4 ja-
ckets positioned in a row. Also for this project
Fagioli came up with the idea to build a tailor
made frame structure (different from the Indone-
sian project) to answer to the above questions.
Fagioli found the solution with a retractable edge
main beams with movable stoppers. This solu-
tion was the winner one: it allowed the flexibil-

Impiantistica Italiana - Marzo-Aprile 2023 37