Project description
The construction lot PA 2.2 Albaufstieg with the Boßler and Steinbühl tunnels has a length of 14.5 km. The two 485 and 472 m long Filstal bridges are located between the 8,806 m long Boßler Tunnel to the northwest and the 4,8047 m long Steinbühl Tunnel to the southeast. The two tubes of the Boßler Tunnel were excavated conventionally and with a TBM. The main section from the Umpfental intermediate approach was driven conventionally and approx. 2,800 m were driven from the Aichelberg portal using a TBM. Both drives of the Steinbühl Tunnel were carried out from the Pfaffenäcker excavation pit using the shotcrete method. In principle, all tunnel tubes are pressure-tight.
Place: Baden-Württemberg, Germany
Client: DB Netz AG
Commissioned by: ATA Arge Tunnel Albaufstieg (PORR / G. Hinteregger & Söhne / Östu-Stettin / Swietelsky Tunnelbau)
Performance period: 2014 – 2020
GEODATA services:
On behalf of ARGE ATA, we were commissioned with all surveying services in a bidding consortium with Angermeier Ingenieure. The scope of services included the entire construction and heading survey including the network and control survey, gyro measurements, tunnel laser scanner recordings, geotechnical measurements using 3D displacement measurements and the supply and installation of the geotechnical instrumentation.
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