Thursday, August 11, 2022
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Tunnel Boring Machines Ready for 2021 – Cross River Rail, Brisbane


The State Government has announced the two Tunnel Boring Machines (TBMs) to be used to tunnel Brisbane’s Cross River Rail project are ready for when work commences in early 2021.

Tunnel Boring Machine (TBM)

More than 100 local companies have been involved in preparing both TBM that will excavate the bulk of Cross River Rail’s 5.9km twin tunnels.

Transport and Main Roads Minster Mark Bailey said the first TBM was undergoing last-minute checks at Herrenknecht’s northside facility before being moved to Woolloongabba.

“More than 100 local subcontractors and suppliers are benefiting from more than $10 million in work to help get these TBMs ready”.

“A great example is family-owned QIC Protective Coatings in Birkdale, who repainted the TBMs”.

“Cross River Rail is injecting more than $4 million a day into the local economy and has already supported more than 2,400 workers so far”, Mr Bailey said.

Tunnel Boring Machine (TBM)

Mr Bailey said the Cross River Rail project was moving into an exciting new stage.

“The first TBM has been assembled and is going through its final checks this week, and the same process will be completed with the second machine next month”.

“Crews remain on track to launch the TBMs from the Woolloongabba station site early next year”.

“The TBMs will tunnel under the Brisbane River to Albert Street station in mid-2021, before continuing on to the new Roma Street station and emerging at the project’s northern portal at Normanby”.

“At the same time as they’re making their way through hard rock, the TBMs will install massive 4.2 tonne precast concrete segments to line the tunnels”, Mr Bailey said.

Tunnel Boring Machine fast facts:
– Two TBMs are being refitted and refurbished at Herrenknecht’s facility
– Each TBM weighs 1350 tonnes and is 165 metres long
– A crew of up to 15 people will work in a TBM at any one time
– The cutter head weighs 106 tonnes and measures 7.2 metres in diameter
– 39 cutting discs that exert up to 32 tonnes of pressure each
– TBMs will work at a rate of 20 to 30 metres per day
– the tunnels will be 58m below the surface at Kangaroo Point
– Each TBM is fully equipped with crew facilities, offices and toilets
– The TBMs must be disassembled to be transported
– The TBMs will generate 290,000 cubic metres of spoil 

More than 100 local companies have prepared the TBMs, including QIC Protective Coatings (Birkdale), LCR Group (Wacol), AC Hargreaves Pty Ltd (Seventeen Mile Rocks), C&L Tool Centre (Hendra), ShapeCUT (Carole Park), and Citi-steel (Darra)

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Source: Information, Drawings and Images
All article information is sourced and available for review from referenced locations.
– Media Release: Cross River Rail’s tunnel twins almost ready to go
– Images and Video: Cross River Rail

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