Metro Rail Tunnel - Building Thread

 
  bevans Site Admin

Location: Melbourne, Australia
A lot of work has been done around South Yarra which is clearly shown in the Video.  Andrew stated in the video the project will take 18 months to lay the track and install overhead and signalling.  Does that seem a long time?

Link to the video

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  justarider Chief Commissioner

Location: Released again, maybe for the last time??
The new State Library Station will be located under Swanston Street, between La Trobe Street and Franklin Street. It will include an underground passenger connection to Melbourne Central Station, allowing commuters to conveniently interchange between Metro Tunnel and City Loop train services."

You’ll still have to come from below the level of Melbourne Central’s Platforms 3 & 4 to above the level of Platforms 1 & 2, cross the City Loop’s northern tunnels and then descend between the City Loop’s northern and southern tunnels to Platforms 1 & 2, or further for Platforms 3 & 4. Or vice versa.

Currently an interchange between City Loop services at Melbourne Central (not that there is much demand for it) is only a matter of walking across the platform or using the escalator to the platform set above or below.

One thing’s for certain, the design won’t be the most efficient but will maximise the number of shops you need to pass. The redesign of Melbourne Central’s Swanston Street entrance added 2 mins to the time it takes to get from the street to Platforms 3 & 4.


PS: There might be a case for numbering State Library’s platforms as 5 & 6 and Town Hall’s as 15 & 16.
kitchgp
Funny thing. For once its not a shopping centre. Will be some, but not an obstruction.

If you can be bothered reading thru multi pages, here it is
https://metrotunnel.vic.gov.au/__data/assets/pdf_file/0008/300005/CBD-NORTH-APPENDIX-B.pdf

Briefly (and approx, my map reading is sketchy)
leave middle of MM1 platform, approx A'Beckett St,  up escallator 1 level
walk west 25m, go up escallator 2 levels (about 50m horizontal heading south-west)
walk south 25m and enter the new extended Musuem concourse ( it now is under LaTrobe St And the flattened buildings northside)
walk south 25m to the (existing) down escallators to the MURL tunnels.

An alternate is to do small people tunnels directly connecting platforms. That's what they did in older Europe metro eg London
A confusing maze, not at all attractive, crowded, and hazardous. They remind me of walking thru the Sewers.

EDIT oops, forgot about our friends in wheelchair
Go to south end of platform. (LaTrobe st)
Take lift up 1 level
Change to other lift
Up to Museum concorse,
Across concourse to other lift down to platforms.

cheers
John
  True Believers Chief Commissioner

A lot of work has been done around South Yarra which is clearly shown in the Video.  Andrew stated in the video the project will take 18 months to lay the track and install overhead and signalling.  Does that seem a long time?

Link to the video
bevans
He said 12 to 18 months. 1 year to do the trackwork, overhead and signalling do seem about right in a tunnelled environment.

Mernda rail line took about 4-6 months to get the trackwork, overhead and signalling over the same distance, but it's in greenfields and is all above ground.
  justarider Chief Commissioner

Location: Released again, maybe for the last time??
A lot of work has been done around South Yarra which is clearly shown in the Video.  Andrew stated in the video the project will take 18 months to lay the track and install overhead and signalling.  Does that seem a long time?

Link to the video
He said 12 to 18 months. 1 year to do the trackwork, overhead and signalling do seem about right in a tunnelled environment.

Mernda rail line took about 4-6 months to get the trackwork, overhead and signalling over the same distance, but it's in greenfields and is all above ground.
True Believers
Also didn't mention that the tunnels firstly must have a floor laid. Quite a big job before anything else.
  justarider Chief Commissioner

Location: Released again, maybe for the last time??
A lot of work has been done around South Yarra which is clearly shown in the Video.  Andrew stated in the video the project will take 18 months to lay the track and install overhead and signalling.  Does that seem a long time?

Link to the video
bevans
I was surprised, and impressed, to learn the entrance will be fitted with flood doors.

That will be a fun afternoon, to watch them being tested. Bring your own scuba gear!

cheers
John
  Lockie91 Assistant Commissioner

A lot of work has been done around South Yarra which is clearly shown in the Video.  Andrew stated in the video the project will take 18 months to lay the track and install overhead and signalling.  Does that seem a long time?

Link to the video
He said 12 to 18 months. 1 year to do the trackwork, overhead and signalling do seem about right in a tunnelled environment.

Mernda rail line took about 4-6 months to get the trackwork, overhead and signalling over the same distance, but it's in greenfields and is all above ground.
Also didn't mention that the tunnels firstly must have a floor laid. Quite a big job before anything else.
justarider
Track work, OLE and Signalling are only a few thing to go in, all the way at the end.

As TB has mentioned, floor needs to go in; Under the floor is a load of services.
Drainage/Stormwater, Fibre communications, fire services (water supply, sensors, detectors, fire hose reals, smoke extraction), emergency lighting and power, CTTV, general power and ventilation. After all of that, track can be laid and wires strung up. All of these needs to be repeated for the new stations.

Building the tunnel is the easy part, fitting it & the stations out will take 18 months and then some.

Lockie
  duttonbay Minister for Railways

I guess from the blackness of the boxes in your post, they must have forgotten to turn the lights on.
  NSWGR8022 Chief Commissioner

Location: From the lands of Journalism and Free Speech
As you mention https://www.railpage.com.au/news/s/anzac-station-a-new-transport-hub-for-st-kilda-road is about Anzac Station but why is it being called a hub when it is really not an interchange in concept or reality?
  Adogs Chief Train Controller

As you mention https://www.railpage.com.au/news/s/anzac-station-a-new-transport-hub-for-st-kilda-road is about Anzac Station but why is it being called a hub when it is really not an interchange in concept or reality?
NSWGR8022

It's not a train interchange, but it *is* a train/tram interchange.  It's a fairly busy tram hub.
  ngarner Deputy Commissioner

Location: Seville
The fourth TBM has begun its final journey from State Library to Town Hall, meaning the last section of tunnel is underway



Neil
  Tii Locomotive Driver

The fourth TBM has begun its final journey from State Library to Town Hall, meaning the last section of tunnel is underway



Neil
ngarner
Cool. Any predictions on which TBM will get to Town hall first ? I'm guessing Joan and then Millie. They both must be close. The TBM tracker is always behind in info and never realtime.

UPDATE: I did see this in the updated Metrotunnel disruption page dated yesterday though

"Tunnel boring machine Millie broke through the southern end of the Town Hall Station precinct in late-March"
  ngarner Deputy Commissioner

Location: Seville
As the last post indicates the Metro Tunnel web site has a works update for Town Hall that says that Millie broke through at Town Hall mid March but that was about the time that all the publicity said it was supposed to be starting to burrow under the Yarra River. The last update on the tunnel tracker puts Millie closest to break thru and then Joan. Without any doubt there will be media releases and lots of publicity when one does actually break through, so there won't be any questions about when one gets to Town Hall, which says to me that none of them have arrived there yet.

Neil
  justarider Chief Commissioner

Location: Released again, maybe for the last time??
As the last post indicates the Metro Tunnel web site has a works update for Town Hall that says that Millie broke through at Town Hall mid March but that was about the time that all the publicity said it was supposed to be starting to burrow under the Yarra River. The last update on the tunnel tracker puts Millie closest to break thru and then Joan. Without any doubt there will be media releases and lots of publicity when one does actually break through, so there won't be any questions about when one gets to Town Hall, which says to me that none of them have arrived there yet.

Neil
ngarner
Neil, I also read the comprehensive 5 page construction update. Thanks Reddit. Sounded fantastic until I read the date 1st April.

It all seemed sound techy stuff until the clue on page 2
Once the Shrine of Remembrance station entrance is backfilled to ground level, this area will be used to store TBM pieces
Domain Precinct - Constrction Update April 2021
cheers
John
  Tii Locomotive Driver

As the last post indicates the Metro Tunnel web site has a works update for Town Hall that says that Millie broke through at Town Hall mid March but that was about the time that all the publicity said it was supposed to be starting to burrow under the Yarra River. The last update on the tunnel tracker puts Millie closest to break thru and then Joan. Without any doubt there will be media releases and lots of publicity when one does actually break through, so there won't be any questions about when one gets to Town Hall, which says to me that none of them have arrived there yet.

Neil
ngarner
I don't think any have arrived yet either. That update on Millie was a works alert statement from April 6, but I feel it was written before it's release date and assumed it must be about there- where exactly is there I don't know but I guess under flinders street? It does say 'precinct' which could be anywhere around fed square perhaps ?
  Power_Guy Beginner

As the last post indicates the Metro Tunnel web site has a works update for Town Hall that says that Millie broke through at Town Hall mid March but that was about the time that all the publicity said it was supposed to be starting to burrow under the Yarra River. The last update on the tunnel tracker puts Millie closest to break thru and then Joan. Without any doubt there will be media releases and lots of publicity when one does actually break through, so there won't be any questions about when one gets to Town Hall, which says to me that none of them have arrived there yet.

Neil
I don't think any have arrived yet either. That update on Millie was a works alert statement from April 6, but I feel it was written before it's release date and assumed it must be about there- where exactly is there I don't know but I guess under flinders street? It does say 'precinct' which could be anywhere around fed square perhaps ?
Tii
I think both Millie and Joan are at town hall.  (The map graphic has been updates today but not the distance. )

Tracker
  ngarner Deputy Commissioner

Location: Seville
Finally an update on distance travelled on the website. Millie is 300m from break through based on this update, Alice still has 1.1Km to go, Joan has 169m to go and Meg has 827m to dig.

Joan should be first to arrive

TBM distances
  Power_Guy Beginner

Finally an update on distance travelled on the website. Millie is 300m from break through based on this update, Alice still has 1.1Km to go, Joan has 169m to go and Meg has 827m to dig.

Joan should be first to arrive

TBM distances
ngarner
Distance updated.  Joan and Millie ...Complete.

Maybe waiting for all to be finished for big PR announcement
  justarider Chief Commissioner

Location: Released again, maybe for the last time??
Its official
https://m.facebook.com/metrotunnel

Millie has won the race.
  Jordy33 Locomotive Fireman

TBM Joan also has broken through. My guess is that next is Alice, then Meg.
  don_dunstan Dr Beeching

Location: Adelaide proud
A lot of work has been done around South Yarra which is clearly shown in the Video.  Andrew stated in the video the project will take 18 months to lay the track and install overhead and signalling.  Does that seem a long time?

Link to the video
bevans
Quite difficult to get anywhere near the actual site to see what's going on - I had a walk around South Yarra last Saturday afternoon and obviously the entrance worksite is huge but you can't really see anything from any vantage point around the site.
  Lockie91 Assistant Commissioner

Quite difficult to get anywhere near the actual site to see what's going on - I had a walk around South Yarra last Saturday afternoon and obviously the entrance worksite is huge but you can't really see anything from any vantage point around the site.
don_dunstan
Not going to see much of anything over the next 12 months, it will all be happening underground. At most we might see track being laid in the decline structures in the east and west. Going to be relying a lot on the MM Facebook Page to see what is going on.

A lot of work has been done around South Yarra which is clearly shown in the Video. Andrew stated in the video the project will take 18 months to lay the track and install overhead and signalling. Does that seem a long time? Link to the video
Bevans
No, a floor needs to be built in the tunnels first. This houses drainage, communications, Power and Fire Services. Track goes on top of this floor.
Signalling, lighting, CCTV, ventilation and fire services need to be installed on the tunnel walls before the the OLE can be installed on the roof of the tunnel.

Plus all the track equipment that needs to be installed, connected to the system and tested.

Building the concrete tunnel is the easy part. Putting everything in it is hard.

Lockie
  railblogger Chief Commissioner

Location: At the back of the train, quitely doing exactly what you'd expect.
Would they have started on that already in the completed sections of tunnel?
  ngarner Deputy Commissioner

Location: Seville
Work on installing the 'invert', or floor, has started from South Kensington but how much they've done hasn't been communicated to the general public (or us gunzels)

Neil
  Lockie91 Assistant Commissioner

Would they have started on that already in the completed sections of tunnel?
railblogger
as Ngarner has said invert construction can start, along with cable routes and pipes. All of the TBM support needs to be pulled out as well.

Lockie

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