The construction of the FAIR accelerator facility is picking up speed. The preparatory work has now commenced for linking the existing accelerator systems of GSI Helmholtzzentrum für Schwerionenforschung to the new FAIR facility, which will take place later on. An important milestone here is the erection of two approximately 100-meter-long retaining walls that are up to eight meters tall. The team of ion42 [DGI Bauwerk Gesellschaft von Architekten mbH and schneider+schumacher] is responsible for the design and construction of FAIR [Facility for Antiproton Ion Research].
Eighty bored piles are currently being driven into the ground to create a solid foundation for the retaining walls to the north of the GSI facilities. The piles are driven up to 14 meters into the ground by a pile driver more than 25 meters tall. The poured concrete piles, which are up to 1.2 meters in diameter and strengthened by steel reinforcement cages, are there to stabilize the building site. The outer retaining wall will extend along the Prinzenschneise lane, which will be open to the public again after FAIR is completed. The inner retaining wall will protect the existing accelerator ring. A campus road will be built between them.
Preparations are also under way at the two transformer locations on the 20-hectare FAIR construction site [one in the north, the other in the south]. The work also includes the building of construction site access roads, the setting up of additional construction site equipment, and the creation of a temporary storage facility for construction material and excavated earth.