The neighborhood ”Pyramiden” in central Stockholm was sinking – to rescue the houses Wassara’s technology turned out to be the best.
Old buildings in central Stockholm often have a foundation made of thick wooden piles. As the water table lowers, the wooden piles get in contact with air and begin to decay, resulting in a reduced loadbearing capability.
The contractor choose to test Wassara’s DTH-hammer since they knew that it would improve the working environment and reduce the risk of descend of the ground level in an area connected to limestone walls.