Marr’s M2480Ds on Sydney Metro Crows Nest Station Project with Heavy Lifting Challenges
In October 2020, A W Edwards was awarded the contract to construct the new Sydney Metro Crows Nest Station 25m underground. The AU$370M project included the construction and fit out of the station, including two station entrances, underground platforms, retail space, public domain works and enabling works for future over-station developments.
Eighteen months before construction started on the new Sydney Metro Crows Nest Station, Marr’s team was approached by the end-client, Sydney Metro, during the front-end design phase to develop a craneage methodology for the project. The goal was to align the cranage solution to Sydney Metro’s preferred precast and modular construction methodology based on Marr’s successful experience delivering on several other Sydney Metro station projects where similar construction methods had been employed.
The new station came with a number of challenges including:
- a constrained site with limited space for positioning the cranes and delivery of materials and equipment
- it’s location adjacent to one of Sydney’s busiest arterial roads and a built-up retail, commercial and residential precinct
- heavy lifting requirements up to 120t
- and the construction schedule within the overall delivery schedule for the Sydney Metro City & Southwest project.
Marr’s expertise resulted in a cranage solution that:
- Supported Sydney Metro’s preferred DfMA construction approach — allowing larger and heavier structures to be fabricated off-site and installed in single lifts;
- Aligned the cranage solution with the construction program — supporting the delivery of the project to the overall construction schedule of the Sydney Metro City & Southwest project;
- Eliminated the need for temporary works;
- Provided a solution that was safer, more efficient and cost-effective;
- and Allowed Sydney Metro to issue a considered and evaluated design for the construction tenderers with a suitable cranage solution built into it — enabling the project to transfer easily from contract award to construction in a short timeframe.
Marr was subsequently awarded the heavy lifting contract by A W Edwards in October using two of the wold’s largest tower cranes, the M2480D, installed within the station box.
Managing Director, Simon Marr said, “Our early engagement on this project supported Sydney Metro’s desire to adopt a Designed for Manufacture and Assembly, DfMA, approach. Then it was about aligning the cranage to that approach and using it to help secure the programme with a safer, more effective & cost-efficient solution,”
Construction work is drawing to an end with one of the two cranes due to be dismantled in February and the the Station scheduled to open later this year.
Marr’s solution – using two M2480Ds installed within the station box — provided the heavy lifting capacity required within the small space available within
the construction site.
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