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Old February 3rd, 2020, 09:37 AM   #921
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Just as addition to Tayser's post. On the Metro Tunnel Facebook page. It shows the Anzac station is now ready for TBM assembly for the other 2 TMBs. Also South Kensington TBM retrieval site is almost at completion, will see the first TBM pop out in mid-February. Exciting progress.
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Old February 4th, 2020, 12:11 AM   #922
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^ from said video on facebook

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Old February 4th, 2020, 04:08 AM   #923
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First piece of tunnelling equipment at ANZAC Station

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Old February 4th, 2020, 05:56 AM   #924
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There were some more TBM sections sitting to the right of your image when I went past there a couple of weeks ago. If they're not there now I would assume hey have already been lowered into the station box.
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Old February 6th, 2020, 07:13 AM   #925
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An incredible new photo has revealed the massive cavern lying underneath Melbourne’s CBD which will house one of the city’s new Metro Tunnel stations.

A massive cavern that will house one of Melbourne’s new Metro Tunnel stations has been excavated as work ramps up beneath the CBD.

Premier Daniel Andrews toured the site of the future State Library Station on Thursday as crews begin work to build the platforms where thousands of commuters will board trains under the heart of the city.

It comes as a tunnel boring machine has dug close to 1km west of North Melbourne, with a second machine a close behind.



The two machines are on track to reach the tunnel’s entrance in Kensington within the next two months where they will then be taken out of the ground, returned to North Melbourne and directed towards Parkville and the city.

Mr Andrews said the completed cavern under the State Library of Victoria could easily fit the tallest of the Rialto Towers if turned on its side.

“That’s how significant this is,” he said.

“80,000 cubic metres of rock and soil that’s been taken out so far and still another 50,000 to go.”



State Library Station will be 240m long and 30m wide and have an underground connection to Melbourne Central Station for City Loop Passengers.

- HUN, Full Article
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Old February 6th, 2020, 08:31 AM   #926
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Thanks to Marcus Wong for pointing this out on twitter.... renders





I was wondering where those photos were of a mezzanine, the running tunnels... just what... but yeah - hope the above provides as much context as I got earlier today.

The other two tunnels they still are yet to complete are for trains/tracks as you can see from renders above - the walls will likely be breached in places, creating columns.
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Old February 6th, 2020, 08:49 AM   #927
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Woah, that's a lot of progress since July.
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Old February 6th, 2020, 08:51 AM   #928
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The scale is something else, plus more coming either side for 19m of platform width:

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Old February 6th, 2020, 09:28 AM   #929
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Quote:
Originally Posted by JCooza View Post
Mr Andrews said the completed cavern under the State Library of Victoria
No quite, haha. Excellent reporting as always.
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Old February 6th, 2020, 11:57 AM   #930
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More diagrams originally tweeted by Marcus Wong: https://twitter.com/aussiewongm/stat...52311934484480



Write circle added by me for approximation to what we see in the pics (Marcus also did this- but wasnt going to rip his image).

Original cross-sections here: https://metrotunnel.vic.gov.au/__dat...APPENDIX-B.pdf

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Old February 6th, 2020, 12:15 PM   #931
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Great stuff. We're still yet to see detailed architectural designs for the platforms and some of the station structures, but the engineering is very interesting.

In this interview the head of RPV says the platform level will be three metres above the ground shown in the photos of the cavern, with ten metres from the platform to the ceiling: https://twitter.com/9NewsMelb/status...861083648?s=20 So might not feel quite as high.

He also claims it'll be one of the widest underground platforms in the world, I wonder how true that is.
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Old February 6th, 2020, 03:08 PM   #932
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Quote:
Originally Posted by tayser View Post



I was wondering where those photos were of a mezzanine, the running tunnels... just what... but yeah - hope the above provides as much context as I got earlier today.

This is the platform. Super wide, with pillars near the edges.

Then that route/line map is printed on the platform screen doors, making it look like a mezzanine or retail area.

A good design, lots and lots of platform space, given a lot of football crowds will be coming here once some trains bypass Richmond station. And very high ceilings to helps with summer heat and airflow.
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Old February 6th, 2020, 10:02 PM   #933
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Good cross sections. Also shows why underground stations cost so much!

The “big central hall” typology works really well for passengers but it’s not deployed that often as it’s quite spendy

Lots of Moscow stations are like that
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Old February 6th, 2020, 10:28 PM   #934
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https://www.premier.vic.gov.au/metro...anston-street/

Metro Tunnel Taking Shape Deep Below Swanston Street
6 February 2020

Construction of the Metro Tunnel Project’s new State Library Station is well underway, with the main station cavern now excavated and work starting on the permanent station.

Premier Daniel Andrews and Minister for Transport Infrastructure Jacinta Allan were deep below Swanston Street this morning to inspect progress on the station and meet the workers bringing State Library Station to life.

The cavern under the CBD has been excavated using three road headers, each of which can excavate around 500 tonnes of rock every day. They are equipped with cutterheads that smash through rock three times harder than concrete.

The road headers have finished more than a year of work under the city, digging 36 metres under Swanston Street while also excavating the station length of 240 metres between Franklin and La Trobe Streets. Later this year, they will go back underground to dig out the rail tunnels on each side of the central station cavern.

The first permanent building works for the station are also now underway, with a concrete floor installed that will form part of the future platform.

State Library and Town Hall stations feature ‘trinocular caverns’ – three overlapping tunnels dug by road headers to create an open space for passengers, and allowing the concourse and platforms to be integrated on one level.

State Library Station will be 240 metres long and 30 metres wide, and its 19-metre platforms will be some of the widest underground metro platforms in the world.

The station will include an underground passenger connection to Melbourne Central Station, so passengers can easily change between Metro Tunnel and City Loop train services.
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Old February 12th, 2020, 12:13 PM   #935
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State Library station - above ground worksite, yesterday




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Old February 13th, 2020, 01:24 AM   #936
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Quote:
The tunnel boring machine retrieval shaft at South Yarra is now complete at a depth of 19.5 metres. This is where our TBMs Alice and Millie will break through after digging from Anzac Station to the eastern tunnel entrance section of the Metro Tunnel.




From Metro tunnel twitter.
https://twitter.com/metrotunnelvic/s...79742737211393
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Old February 14th, 2020, 05:49 PM   #937
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So they're no longer making a TBM pit at Fawkner park? Just going all the way from Domain?
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Old Today, 09:42 AM   #938
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Quote:
Originally Posted by pintpot View Post
Good cross sections. Also shows why underground stations cost so much!

The “big central hall” typology works really well for passengers but it’s not deployed that often as it’s quite spendy

Lots of Moscow stations are like that
Superwide avoids the problems in the City Loop where the Parliament and Flagstaff platforms are barely wide enough for two mobility scooters to pass each other within the safe zone. I'm not sure how much either equipment or dirt is in the spaces between them.
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