France

Vosges Tunnel: 2nd Bore started

The French high-speed train TGV needs 2 hours and 20 minutes to cover the express route (320 km/h) from Paris to Strasbourg stretching to Baudrecourt in Lorraine. Currently in the east the route is being developed through the Alsace over 106km in such a way that by 2016 the travelling time can be cut by a further 39 minutes.

In addition a roughly 4 km long, twin-bore rail tunnel with a cross-passage every 500 m is being built to underpass the Vosges: using a tunnel boring machine (TBM) with a convertible EPB shield (S-670, Herren­knecht AG) with 10 m diameter and 105 m in length. The TBM...

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Issue 2012-04 France

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Issue 2015-02 Switzerland

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Issue 2014-02 Great Britain

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Issue 2015-05 Austria

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Issue 2012-03 United Kingdom

The 2 first Crossrail TBMs in Action

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