Tunnelling

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Norway

Water Caverns in Norway

Skanska, one of the largest construction groups in the world, was looking for reliable pumps for a water cavern project.

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France

Grand Paris Metro Dewatering

Grand Paris Express is one of Europe's most expensive tunneling projects in progress.
At the new Le Vert de Maisons Station, a high-head delivery system is required to effectively handle the dewatering process throughout the tunnel's construction phase.

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Germany

Tunnel water recycling

A tunnel in Southern Germany with a length of 4300 meters is planned to be finished and operable by 2028. The biggest challenge for the project had been the need for lowering of the groundwater table in order for the tunnel boring machine to commence its work. The removed water needed to be treated for environmental requirements so it can be released for seepage into the nature.

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Chile

8km tunnel dewatering

In a big powerplant project in Chile, 70km of tunnels were being drilled around the Andes. By design the tunnelling was separated into main tunnels and smaller supply tunnels. One of the latter ones was built with a total length of more than 8km for the purpose of providing access to the main tunnelling area. During the construction of this supply tunnel plenty of water had to be removed over a long distance.

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