This 57-km tunnel under the Swiss Alps has nearly broken through after 11-years of work. This tunnel will create a ‘flat’ rail path through the Alps and become the world’s longest rail tunnel. [Source: World Tunnelling. Image: Alp Transit]
The LA Times is reporting that the California bullet train project may be facing significant budget and schedule issues, largely because of a 13.5-mile tunnel beneath Pacheco Pass east of Gilroy. The article reports that […]
It seems like every time I turn around these days there is another amazing tunnel project in the news. The level of engineering brought to bear on these challenges is phenomenal, whether it’s in the […]
For those outside the UK, the Crossrail project is a mega-project upgrade to the London metro area’s subway system. The tunneling portion of the project will consist of 21-km of twin-bore tunnels excavated by eight […]
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To speed the project, intermediate shafts were sunk to allow for simultaneous tunnelling on several faces, these points (Erstfeld, Amsteg, Sedrun, Bodio and Faido) to become integrated in the finished structure for servicing and emergency access.