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Up to, but even on average, multiple meters certainly. You can actually check advance reports:

  • Project organisator AlpTransitGotthard has a monthly update. It isn't awfully detailed, though: no October data for one of the two pairs of still active attacks, the one from Sedrun to the South (they only report the passing of the originally planned meeting point of the final two tunneling attacks, which was moved South by 1.7 km); and daily averages of 12.4 resp. 14.8 m for the pair of attacks from Faido to the North.

  • For Sedrun, the contractor's progress report is not much help, either, but in the reports from 2007, you find earlier averages of 6-6.5 m for this (blast-excavated) pair of attacks, and data for the geologically most difficult section of the entire tunnel (a zone of fractured, expanding rock North of Sedrun): traversed at 1.4-1.5 m/day.

  • For the Faido tunnel boring machines, there is also the contractor's semi-regular weekly report (showing a progress of 110.9 resp. 73.5 m in the two tubes).


*Lunatic*, n.
One whose delusions are out of fashion.
by DoDo on Tue Nov 24th, 2009 at 06:07:49 AM EST
[ Parent ]
The website still talks about Cisalpino trains. Any idea whether the end of Cisalpino will have any effect on the technology?
by gk (gk (gk quattro due due sette @gmail.com)) on Tue Nov 24th, 2009 at 06:12:47 AM EST
[ Parent ]
None at all.

  1. Cisalpino's trains are to continue to be run by SBB resp. FS.
  2. Even if the new ETR610 Pendolinos continue to be troubled, no tilt technology needed in the NEAT tunnels.
  3. If the ETR610 are retired for whatever reason, what could be a result is that there will be no need for 250 km/h 'paths' [e.g. schedule slots], which would increase tunnel capacity. However, opening of the tunnels is still so far away that new 250 km/h capable trains could be purchased by then. (Or, who knows, some other operator -- DB, SNCF, Italy's new private NTV -- might request extended runs acorss the tunnel for their proper high-speed trains.)


*Lunatic*, n.
One whose delusions are out of fashion.
by DoDo on Tue Nov 24th, 2009 at 06:23:06 AM EST
[ Parent ]
For the Faido tunnel boring machines, there is also the contractor's semi-regular weekly report (showing a progress of 110.9 resp. 73.5 m in the two tubes).

...and you get averages for the entire Faido tunnels (including weeks-long stops for vacations and maintenance) of 9.44 resp. 9.04 m/day. (So the final holing-through can be expected in the first half of 2011.)

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Tue Nov 24th, 2009 at 06:13:21 AM EST
[ Parent ]

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