Albvorlandtunnel
Contractor: Implenia Construction GmbH
Division Civil Engineering – Tunnelbau Deutschland
- On the Wendlingen portal, the Albvorland tunnel has two main tracks for the new line and a freight track. The further course of the tunnel consists of two single-track pipes that can be driven at speeds of up to 250 kilometers per hour. Two pipes are connected by cross-sections every 500 meters. Tunnel pipes are simultaneously being built from the east portal using a tunnel boring machine.
- The tunnel will consist of 54,000 prefabricated concrete parts, so-called segments, manufactured near the construction site. In total, about 600 construction workers and about 80 engineers, geologists, and traders will work on the completion of both tunnels.
- Both tunnel boring machines are about 120 meters long, weigh about 2300 tons, and have a diameter of 10.82 meters. The propulsion power is 4,400 kilowatts per machine. Two tunnel boring machines will take about a year and a half to start two 8,176-meter-long tunnel pipes. The average speed of advancement will be about 20 meters per day per machine.