World's longest subsea tunnel
The Solbakk tunnel is one of three tunnels in a Norwegian mega-infrastructure project and will build a ferry-free connection between the area of Nord Jæren and Ryfylke. This will reduce travelling time between the two locations into one third.
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The tunnel will be 14.3 kilometers long, with its deepest point 290 meters below sea level. In all, some 1.2 million cubic meters will be excavated over a 39-month period.
Sandvik is contracted for the project and the contract includes four intelligent computer-controlled Sandvik DTi series jumbos, rock tools and a service contract. The jumbos, two Sandvik DT1131i and two DT921i, will be used for the excavation of what is to be the world's longest subsea road tunnel.