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Sarens jacks, transports and installs concrete tunnel portals in Victoria

Sarens worked for client CPB and John Holland JV to manoeuvre and install two tunnel portals in Melbourne, Victoria.

Sarens has been one of the pioneers of innovative elevated road installations in Australia. The team installed the challenging Darlington Flyover using Accelerated Bridge Construction (ABC) in 2017 when moves of this size were unheard of.

Based on strong experiences, CJC PB and John Holland JV asked Sarens to transport and install two concrete tunnel portals for the West Gate Tunnel Project in Melbourne. WGTP is currently the largest government project in Australia and will greatly improve accessibility and reduce the traffic congestion in and around Melbourne.

The Sarens team had to jack up the concrete portals, weighing 600t each, load them on the SPMTs, drive them to the installation site, and finally jack down and install the portals. For the project the equipment deployed included:

36 axles lines of SPMTs

SARLIFT

PJ250

In a confined space, the crew skilfully assembled the equipment. Four PJ20 pre-jacked the portals on the 2 x 18 axles SPMTs and relocated them under the SARLIFT. The SARLIFT jacked the portals around seven meters high. The reconfigured 3 x 12 axles SPMTs with four PJ250 and supporting modular beam on the deck were repositioned under the SARLIFT and the portals were transferred onto this assembly of equipment and finally to the installation site and installed.

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