So reports BBC:
http://www.bbc.co.uk/news/uk-england-london-33002819

"Tunnelling work in London has been completed in the £14.8bn Crossrail
scheme.
Eight boring machines have been cutting their way through earth to
create 26 miles (42km) of tunnels."

In message , at 09:43:10 on Thu, 4 Jun 2015,
Jim Chisholm remarked:

Eight boring machines have been cutting their way through earth to
create 26 miles (42km) of tunnels."

That's the new tunnels, plus the exciting machines which re-did the
kilometre of Connaught tunnel.
--
Roland Perry

On 04/06/2015 10:06, Roland Perry wrote:
In message , at 09:43:10 on Thu, 4 Jun 2015,
Jim Chisholm remarked:

Eight boring machines have been cutting their way through earth to
create 26 miles (42km) of tunnels."

That's the new tunnels, plus the exciting machines which re-did the
kilometre of Connaught tunnel.
And isn't it a shame that these boring machines and their expert
workforce cannot now move directly to start CROSSRAIL2?

On Thu, 04 Jun 2015 11:00:36 +0100, Jim Chisholm
wrote:

On 04/06/2015 10:06, Roland Perry wrote:
In message , at 09:43:10 on Thu, 4 Jun 2015,
Jim Chisholm remarked:

Eight boring machines have been cutting their way through earth to
create 26 miles (42km) of tunnels."

That's the new tunnels, plus the exciting machines which re-did the
kilometre of Connaught tunnel.
And isn't it a shame that these boring machines and their expert
workforce cannot now move directly to start CROSSRAIL2?

Yes, but HS2 may need the workforce in between. The HS2 tunnels will
be bigger, so not the same TBMs.

In message , at 11:00:36 on Thu, 4 Jun 2015,
Jim Chisholm remarked:
Eight boring machines have been cutting their way through earth to
create 26 miles (42km) of tunnels."

That's the new tunnels, plus the exciting machines which re-did the
kilometre of Connaught tunnel.
And isn't it a shame that these boring machines and their expert
workforce cannot now move directly to start CROSSRAIL2?

Not really, much of them will be worn out, and it's a real issue getting
them out of the ground. They'll salvage any useful bits they can for the
manufacturer to reuse wherever the next *funded* project is about the
start tunnelling (which isn't Crossrail 2).
--
Roland Perry

On Thu, 04 Jun 2015 11:52:55 +0100
Recliner wrote:
On Thu, 04 Jun 2015 11:00:36 +0100, Jim Chisholm
wrote:

On 04/06/2015 10:06, Roland Perry wrote:
In message , at 09:43:10 on Thu, 4 Jun 2015,
Jim Chisholm remarked:

Eight boring machines have been cutting their way through earth to
create 26 miles (42km) of tunnels."

That's the new tunnels, plus the exciting machines which re-did the
kilometre of Connaught tunnel.
And isn't it a shame that these boring machines and their expert
workforce cannot now move directly to start CROSSRAIL2?

Yes, but HS2 may need the workforce in between. The HS2 tunnels will
be bigger, so not the same TBMs.

I thought the crossrail tunnels were also being built to UIC gauge?

--
Spud

On Thu, 4 Jun 2015 11:22:28 +0000 (UTC), d
wrote:

On Thu, 04 Jun 2015 11:52:55 +0100
Recliner wrote:
On Thu, 04 Jun 2015 11:00:36 +0100, Jim Chisholm
wrote:

On 04/06/2015 10:06, Roland Perry wrote:
In message , at 09:43:10 on Thu, 4 Jun 2015,
Jim Chisholm remarked:

Eight boring machines have been cutting their way through earth to
create 26 miles (42km) of tunnels."

That's the new tunnels, plus the exciting machines which re-did the
kilometre of Connaught tunnel.
And isn't it a shame that these boring machines and their expert
workforce cannot now move directly to start CROSSRAIL2?

Yes, but HS2 may need the workforce in between. The HS2 tunnels will
be bigger, so not the same TBMs.

I thought the crossrail tunnels were also being built to UIC gauge?

No, I don't think so. There would be no point.

Roland Perry wrote:

Not really, much of them will be worn out, and it's a real issue getting
them out of the ground.

Surprised they didn't just leave them like they did with the Chunnel TBMs.

On Thu, 4 Jun 2015 12:15:41 +0100, Roland Perry wrote:
Not really, much of them will be worn out, and it's a real issue getting
them out of the ground. They'll salvage any useful bits they can for the
manufacturer to reuse wherever the next *funded* project is about the
start tunnelling (which isn't Crossrail 2).

Is a TBM left buried in the ground subject to Landfill Tax?

Arthur Conan Doyle wrote:
Roland Perry wrote:

Not really, much of them will be worn out, and it's a real issue getting
them out of the ground.

Surprised they didn't just leave them like they did with the Chunnel TBMs.

I think one cutter head has been abandoned at Farringdon (discussed at
length here a few months ago). The rest have been extricated and, I
believe, returned to Germany for refurbishment. I don't know how much of
these well-used, huge machines can be re-used.