Covered entrenchment 2


The static transverse design of the supporting structure is a shell with two circular holes with an internal radius of 4.94 m and 7.00 m at the base of the wall in the dividing lane. A radius of 7.00 m is added in relation to the opening from the PZR to take account of the free profile in the tunnel according to the working draft TSC-03.340, 2002.
The length of the covered excavation, measured on the HC axis, is 320.0 m and is dependent on the shape of the embankment over the object, which should be as close as possible to the original shape of the slope. The width of the reinforced concrete structure of the covered excavation is 22.01 m. In the longitudinal direction, the supporting structure of the excavation is divided into 26 tunnel linings of length from 12.08 m to 18.13 m.

Additional information

  • Contracting Authority: DARS
  • Project phase: Basic design, detailed design


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