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Robust pump system ensures safe underwater transport on the Faroes ,

An underlying system of pipework and pump units keep the road free of water and safe for motorists

As the latest tunnel between the Faroe Islands comes into use, it is with an underlying system of pipework and pump units that keep the road free of water and safe for motorists. 

Projektfakta:

  • , Danmark
  • Väg & Järnväg
  • Färdigställt: 2020

Uponors roll

  • 10km of pressure pipes and tanks

It is now far easier for Faroe Islanders to travel quickly and safely from A to B. When the country’s longest undersea tunnel, the Eysturoy Tunnel, was finished in December 2020, islanders could cut 48 minutes off their trip from capital Tórshavn to the towns of Runavík and Strendur, which can now be reached by road in just 16 minutes. 

The tunnel is an impressive 11.2 kilometres long, and links the two most populated islands, Streymoy and Eysturoy. At its deepest, the tunnel runs 189 metres below sea level. The project took four years to complete. The tunnel is hugely popular with the island nation’s residents, who can now also boast the world’s first ever underground roundabout. 

Safety hidden beneath the roadway 

 As motorists drive into the tunnel, they come into a stylish entrance of harmonic arches, and then come to a roundabout flooded with light, making it look like a modern art installation. 

Beneath the road, a sophisticated system of pumps and kilometres of plastic pipework ensure that rain and surface water are kept away from the roadway and technical installations, so that motorists can enjoy the tunnel’s aesthetics safely and securely. 

While motorists enjoy the artistic view, gravity ensures that the water is kept away from the vehicles and roadway, led into drains and pipes and down to the tunnel’s lowest point. Here, large 16 bar pumps send the water back to the surface and out into Skálafjørður fjord. 

The system operates with 160 metre water columns and pumps out between 1,200 and 1,500 litres of water a minute. However, it is built to deal with four times this amount, keeping the tunnel safe for motorists at all times. 

The fifth Faroese tunnel with Danish fixtures 

 The pipe systems have been supplied by plastic pipe specialists Uponor, who have delivered plastic pipe solutions for tunnel projects on the Faroe Islands several times previously – each time in partnership with Faroese company KJ Hydraulik. And there’s a reason for this, according to Jonn Sólheim Thomsen, Sales Engineer at KJ Hydraulik. 

“We have been working with Uponor for over 15 years. As there are such strict safety requirements on a project like this, Uponor’s expertise and knowledge of their products’ strengths and weaknesses have been absolutely crucial. This was a major reason why we chose to work with them again,” says Jonn Sólheim Thomsen. He adds: 

“Plastic is a very strong material with a guaranteed service life of over 100 years, and it’s also far easier to handle and install than equivalent pipe systems in other materials.”

Uponor delivered pressure pipes, tanks and ten kilometres of pipework for this project. Uponor has previously supplied similar rain and waste water systems for projects including the Øresund Fixed Link and the Great Belt Fixed Link. 

Information om projektet

Land
Danmark

Hemsida

Färdigställd
2020

Typ av projekt
Nybyggnad

Byggnadstyp
Väg & Järnväg

Produktgrupp
INF_PE pipes for pressure pipe renovation

Partners

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