Skidding two STS cranes in Termont Terminal

Skidding two STS cranes in Termont Terminal
Skidding the IR1401 crane towards the seaside to rest it in its final position
ALE has skidded 2 STS (Shift To Shore) cranes at Termont Terminal in Montreal Canada. The first crane,
IR1401, weighed 680t and the second crane, IR1920, weighted 980t. The skidding was carried out by
SS300t skidding system (300t skidshoes, 300t push-pull hydraulic units and skid tracks and spreader mats).
The SS300t system was used because of its capability for spreading the ground pressure and its efficiency
in performing these type of movements.
Project:
Skidding 2 STS cranes in Termont Terminal
Place:
Montreal, Canada
Equipment:
Skidding system 300t (Power Pack, 300t capacity skidshoes, 300t system push-pull units, skid tracks and
spreader mats.)
Weight:
IR1401: 680t, IR1920: 980t
ALE, P.I. Los Frailes. Ctra Alcalá de Henares a Daganzo, km 9. P 101-106 28814 Daganzo (Madrid), Spain
Tel:+ 34 91 8845403 Fax:+ 34 91 8845840
Web:www.ale-heavylift.com
ALE592SP
For the skidding operations, ALE used transport beams measuring 16,250mm at each side. The transport
beams, designed by ALE as connection points between the transport beams and the cranes, were installed
underneath the brackets. As there was less than 1m between the sea side railing and the edge of the quay,
ALE had to configure the skidding system in this way in order to position the sea side skidshoes inside the
quay.
General arrangement of skidding system using 4 skidshoes and transport beams
The IR1920 crane needed to change the skidding direction three times. To achieve this, four plates formed a
“C” in each corner and were welded between the transport beams and the brackets to ease changing the
direction of the skidshoes and avoid uninstalling the transport beams every time we changed the configuration of the skidding system.
Skidding and rotating of the IR 1920 crane through curved skidding lines
IR1401 operation: The operation of the IR1401 crane involved skidding it 50m inland to allow the
relocation of two other existent cranes. Once the other two existent cranes were moved to the
other side, the IR1420 crane was skidded back to its initial position on the railing.
IR1920 operation: The IR1920 crane is a new crane constructed in Termont Terminal. The operation involved moving it 300m from the construction area to its final position on the permanent
railings. The operation of this crane was divided into five phases as follows:
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Skidding 150m parallel to the quay. During this phase, the crane was skidded through a
curve to avoid an interference with a lamp spot.
Changing the configuration and skidding the crane 50m perpendicularly to the railing. The
main purpose of skidding perpendicularly was to avoid interference with existing containers.
Changing the configuration and skidding the crane 100m to reach its final position.
Lowering the crane to the railings.
Skidding on land using IR1401 crane