Acciona Ferrovial Joint Venture has re-launched TBMs Beatrice and Daphne from the Five Dock Metro Station site as Sydney’s Metro West heads into its biggest year of tunnelling to date. The 7m diameter double-shield, hard rock, gripper-type Herrenknecht TBMs are on the way to Burwood North about 2km away, after spending 10 weeks traversing the 200m long station cavern at Five Dock.
During the traverse, the machines underwent maintenance, including the replacement of gear boxes and cutter discs, to ensure safe operations during the next leg in the journey.
The 1,300-tonne machines are tunnelling an average 200m a week to build a 11km section of the new metro tunnels from The Bays to Sydney Olympic Park.
Over the next 12 months, a significant program of work will see the twin tunnels for the 24km Metro West line between Westmead and Hunter Street in the Sydney CBD progress.
TBMs Beatrice and Daphne are expected to arrive at Sydney Olympic Park by the end of the year, while autonomous TBMs Betty and Dorothy will make significant progress to build the tunnels between Sydney Olympic Park and Westmead.
A further two TBMs to construct the metro tunnels below Darling Harbour towards the CBD will arrive at The Bays in the coming months, ahead of commencing tunnelling mid-year.
These are the first of six TBMs being used to build the 24km of tunnels from the Sydney CBD to Parramatta, which have been split into three sections.
John Holland, CPB Contractors (CPB) and Ghella joint venture (JCG JV) will deliver the Eastern Tunnelling Package featuring 3.5km of metro rail tunnels between The Bays and Hunter Street in the Sydney CBD, whilst the Gamuda Australia/Laing O’Rourke Consortium has been awarded the $2.16bn Western Tunnelling contract to deliver 9km of twin metro rail tunnels between Sydney Olympic Park and Westmead.
Sydney Metro West will double the rail capacity between Sydney’s two biggest CBDs once passenger services commence in 2030.
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