Highest wood building in the world is built on RD piles in Norway

SSAB delivered 3 800 m RD400/12.5 piles for deep foundations in clay and hard moraine. RD piles are installed by drilling and are especially suitable for difficult ground and environmental conditions. Total of 3 800 m piles were installed with average pile length of 50 meters. Piles were delivered in 6 m, 12 m, 16 m, and 18 m lengths. They were manufactured specifically for the project in SSAB’s Oulainen mill. Piles were drilled through the so-called “Mjøs-moraine”, which can be extremely competent and hard. This is located around the Mjøsa region in Norway. There were challenging conditions for the drilling also due to large amount of water in the area from 25 m to 48 m. 

Figure 1. RD piles installed in challenging conditions: deep foundations in clay and hard moraine.

Piling contractor Hallingdal Bergboring AS was pleased with the delivery. “We wanted piles from SSAB because of good tolerances and quality of the piles, which makes it easy to splice the piles at site. Short delivery time and good logistic was also important” says Marius Øen, Hallingdal Bergboring AS. Main contractor for the project is HENT AS and the owner of the project is AB Invest AS.

Figure 2. Piling contractor Hallingdal Bergboring AS is pleased with good tolerances and quality of SSAB’s piles.

Mjøstårnet is located in Brumunddal few meters from Mjøsa, the biggest inland lake in Norway. Tower will be 80 meters high and have 18 floors, which makes it the highest wood building in the world. The building will have foot print of 600 m2 and have a total building area of 11 500 m2. There will be 32 apartments, hotel and a conference center. The tower will be connected to a 4800m2 of swimming facilities.

Figure 3. Mjøstårnet will be the highest wood building in the world. (Picture: www.mjostarnet.no)