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Workers have begun excavating around 80 Olympic-sized swimming pools worth of rock and soil as they build the new underground Parkville Station, as part of the Andrews Labor Government’s $11 billion Metro Tunnel Project.
Acting Premier James Merlino today joined Minister for Transport Infrastructure Jacinta Allan at the Metro Tunnel’s Parkville worksite, where crews are digging the 270-metre long and 30-metre-wide station box around 30 metres below Grattan Street, between Leicester Street and Royal Parade.
Excavators will initially dig around three metres deep, while a temporary deck made of concrete and steel is simultaneously built at surface level to reduce noise and dust impacts.
Digging will continue once the deck is completed by March, with trucks heading underground via a ramp to remove rock and soil from beneath the deck.
Once the excavation reaches around 15 metres it will be too deep for trucks to enter, so gantry cranes will be used to lower buckets through holes in the deck to collect rock and soil. The cranes will then lower excavated material into trucks inside two acoustic enclosures at surface level, before the trucks exit the site.
The first of three massive gantry cranes have already been installed over the site. The 20-metre high cranes will help remove up to 35 tonnes of rock and soil at a time from beneath the deck and lower construction equipment and materials into the excavated space. All three cranes will be installed by the end of February 2019.
Excavation will continue until the end of this year, with around 200,000 cubic metres of rock and soil to be removed from the site in 2019. Once complete, station construction and fit-out will continue underground.
The Parkville work site was a hive of activity last year, with crews undertaking a range of works, including closing a section of Grattan Street, relocating underground services, establishing site facilities, building covered pedestrian walkways and demolishing the former City Ford buildings to create a holding area for trucks waiting to access site.
The date more than 550 piles have been installed at Parkville, including 330 around the perimeter of the new station box. The piles form the underground support structure that has allowed excavation to safely start.
Construction is well underway on all five Metro Tunnel Stations – the new North Melbourne (near Arden Street), Parkville, State Library, Town Hall and Anzac.
The Andrews Labor Government’s Metro Tunnel Project is a year ahead of schedule, with the first train set to run through the tunnel in 2025.
Quotes attributable to Acting Premier James Merlino
“Significant work is ramping up at the site of the new Parkville Station, as we get on with the job of delivering the world-class train network and state-of-the-art stations that Victoria deserves.”
“The Metro Tunnel will make travelling to the renowned Parkville health, education and research precinct easier than ever before, slashing travel times by up to 20 minutes in each direction.”
Quotes attributable to Minister for Transport Infrastructure Jacinta Allan
“We are undertaking a monumental engineering feat as part of the Metro Tunnel, including constructing new train stations deep beneath some of Melbourne’s busiest areas.”
“Whether it’s the Metro Tunnel, removing level crossings or building the West Gate Tunnel or Suburban Rail Loop – we’re getting on with the projects to get Victorians where they need to go.”
This article first appeared on www.premier.vic.gov.au
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