Switzerland

World Record along the Route: 4th Herrenknecht TBM successfully concludes the final Gotthard Drive

With the final breakthrough in the western bore the two 57 km long main bores of the Gotthard Base Tunnel have been completely excavated. On Wednesday March 23, 2011, the tunnellers proudly and noisily celebrated the occasion after “Heidi” broke through the last centimetres of rock at 12.20 pm (title picture). They reached their target with the TBM S-211 (Gripper-TBM with 9.43 m diameter) on the 11.1 km long section from Faido to Sedrun with the utmost precision. The vertical deviation only amounted to 3 mm whilst absolute accuracy was attained with 0 mm from the horizontal.

The breakthrough...

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Issue 03/2011 Switzerland

Gotthard Base Tunnel: Drive concluded

On March 23, 2011 at 20 past 12 noon the tunnel boring machine broke through from the Faido western bore into the Sedrun part-section (title page); in this connection the deviations from the intended...

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Issue 07/2010 Switzerland

Gotthard Base Tunnel: TBM restarts in Faido west tunnel

On 4 March 2010 excavation had to be stopped in the west tunnel of the Gotthard Base Tunnel some 9 km from the Faido multifunction station due to a rock inrush, and exploratory bores had to be...

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Issue 08/2010 Switzerland

Gotthard Base Tunnel: First bore completion breakthrough in world‘s longest rail tunnel

The world‘s longest rail tunnel is coming ever closer to reality: the first bore completion breakthrough in the Gotthard Base Tunnel took place in the eastern bore on October 15, 2010, 30 km from...

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Issue 04/2011 Producing the Structure of the Century

Gotthard Base Tunnel – the World`s longest Tunnel

Commissioned by: AlpTransit Gotthard AG, Lucerne 2010: 268 pp (23.5 x 30 cm) with 280 Ills. /Tab.; ISBN 978-3-7272-1211-6. Bound. CHF 59.90. Stämpfi Verlag AG, Berne. The Italian version is due out...

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Issue 04/2010 Switzerland

Gotthard Axis – Situation in March 2010

The CEO of the AlpTransit Gotthard AG Renzo Simoni reported on progress achieved in building Switzerland’s biggest construction project during the premiere of the 2009 AlpTransit annual film on March...

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