Sintef Horizon, Trondheim JETGRUNN

Orientation about the project

The SINTEF Horizon project involves a significant expansion of

SINTEF Energi’s premises at Sem Sæland vei 11 in Trondheim.

The project includes:

1. Removal of existing top floor, replaced with 4 new ones

floors.

2. Extension with a glass facade towards Gamle Fysikk and six new ones

floors of offices above a glass courtyard.

3. Establishment of a new lower floor with an auditorium between

existing buildings and Old Physics.

Challenges

1. Existing foundations do not have the capacity to handle

the additional loads from the new floors, and the ground remains

mainly of clay.

2. Securing the construction pit must be carried out for both

existing building and Gamle Fysikk, a listed building with

daily activity.

3. Piles are being established near the high-voltage laboratory, which is in operation.
4. Other activities on campus must not be disturbed.

Basic conditions

The ground consists of a top layer of sand/silty sand (4-6 metres) above

clay/silt down to elevation +30. Below this is a consolidated sand layer

which can carry the loads from the building.

Solution

a

Conclusion

The jet piles met the requirements for compressive strength, and settlement measurements showed

minimal deviations. The project took somewhat longer than planned,

mainly due to leaks in the ground and logistical problems on

the plot.