CIVILS BROCHURE

CASE STUDY
Installation of the Carl-Urich
Bridge, Germany
Bridge Launching
OVERVIEW: The installation of the Carl-Ulrich
Bridge in Offenbach am Main, Germany, has
been successfully completed by ALE.
SERVICES REQUIRED: Jacking up the bridge
and preparing the transportation
Weighing 1,100t and measuring 150m long,
the new bridge was built on the quayside.
The bridge was jacked up 1.6m using four
500t capacity climbing jacks. 48 axle lines
of SPMT were prepared with supporting
construction and positioning underneath the
bridge. Hydraulic jacks were placed on top of
the frame to be able to compensate for the
deformation of the bridge.
BRIDGE LOAD-OUT: The bridge was loaded
out onto the SPMTs and driven onto two, 66m
x 11.5m barges. Each barge was fitted with a
bespoke combination of four winches and four
fairleads to guide the winch wires, along with
a hydraulic powerpack and generator to power
the winches.
BRIDGE INSTALLATION: The bridge was
transported from the quayside to its final
location across the river Main by rotating
the bridge 90 degrees and connecting each
barge to the river bank with four winches,
which were then used to guide the bridge,
SPMT and barges to the installation position
of the bridge. During this process, the anchor
points of some winches were changed in
between phases. When the final position was
reached, the bridge was then lowered into its
foundations by ballasting the barges.
BRIDGE JACKING
CASE STUDY
Rail bridge
replacement, UK
OVERVIEW: ALE replaced a 500t railway bridge
in Liverpool as part of a track upgrade.
SERVICES REQUIRED: The bridge decks which
were adjoined to Liverpool Sandhills station
were removed using twenty eight axles of
SPMT. ALE integrated sixteen 100t capacity
climbing jacks into the transport arrangement,
to ensure height requirements over the
abutment wall.
To complete the project the old and
replacement bridge decks were required to
be manoeuvred around the station platform
and beneath a temporary walkway bridge.
ALE used various configurations of SPMT to
achieve the limited space manoeuvres, ALE
also had to ensure that no loading was applied
to the large section of pavement that needed to
be crossed, this was achieved by transporting
them across bridging mats. The decks were
then offloaded to high level trestles where they
would then be jacked down for demolition.
The 270t replacement bridge decks which were
previously jacked up to installation height in
preparation were removed from the trestles
using sixteen axles of SPMT complete with
high level trailer steelwork.
Together, we are Smarter, Safer, Stronger
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