CIVILS BROCHURE

Bespoke Solutions
BESPOKE SOLUTIONS
CASE STUDY
Pillar-box unloading, UK
OVERVIEW: ALE unloaded two pillar-boxes
weighing over 450t each which belong to
the main piles of the new Forth Replacement
Crossing in Scotland.
SERVICES REQUIRED: Before work began,
a test was conducted on the loading of the
mast. It was carried out with a 5% overload
and 36m radius.
ALE utilised a lifting system connected to
the main mast with a capacity to lift 560t at
a radius of 36m. The mast was supported at a
distance of 64m to the rear by two HLS5000
units, which allowed for lifting or lowering.
The retaining units and the main boom were
placed onto resistant bulkheads on the barge.
Over the bulkheads, a structure was installed
to spread the load along the barge’s reinforced
bulkheads.
To lift and lower each piece, two HLS5000
units were installed at the top end of the mast.
A modular adjustable lifting beam with a
capacity to lift 250t was also installed.
ALE then assembled the mast on the barge in
a horizontal position over temporary supports.
An auxiliary crane was used to perform the
vaulting of the main mast.
CASE STUDY
Bridge uprighting over
the Cuarto River,
Argentina
OVERVIEW: Two steel towers that make
up the new 190t bridge over the Cuarto
River in Argentina have been successfully
uprighted by ALE.
SERVICES REQUIRED: The operations
began with ALE utilising a swivelled gantry,
which incorporated an axis of rotation at
the base to enable simultaneous rotation
as the tower was lifted.
In addition to this, five lifting units were
required for the elevation of the tower and
a final 70t unit was used for retaining as
the centre of gravity passed over the axis
of rotation.
Together, we are Smarter, Safer, Stronger
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