Karoline-Luise-Tunnel

Karlsruhe | Germany

The construction project

After more than ten years of construction, the 1.600 m long Karoline-Luise Tunnel extends beneath Kriegsstrasse and relieves traffic. Starting at the car ramp west of Karlstor, drivers are now guided through the tunnel to the Ostendstrasse junction on Ludwig-Erhard-Allee.

The Karoline-Luise Tunnel, together with the tram tunnel completed in 2021, is part of the Karlsruhe combined solution. The goal: a modern transport infrastructure for the city of Karlsruhe.

Project as PDF for download

Product-specific requirements for doors:

  • Fire protection classes T30 & T90
  • Smoke protection
  • Dynamic pressure/suction load

      

Technical data:

  • Commissioning: October 2022
  • Tunnel length: 1.600 m
  • Operator: Karlsruhe Rail Infrastructure Company (KASIG)

Hodapp escape route doors:

Escape route doors serve to protect road users in tunnels. In dangerous situations, people can leave the tunnel tube along the marked escape route into a fire-safe area. The escape route doors from Hodapp comply with the currently applicable regulations of TL/TP TTT and EABT-80/100.

  • Stainless steel (1.4404 / 1.4571)

  • Single-sided opening swing door

  • 3-sided thin fold

  • Fire protection class T90 according to DIN 4102-5

  • Door leaf thickness: 69 mm

  • Equipped with an electromechanical opening aid (HTDE

  • Escape route sign with flashing light

  • Wet-painted surface in RAL 7032 (“pebble grey”) and RAL 6032 (“signal green”)

Hodapp emergency call niche walls:

The Hodapp Tunnel niche walls are prefabricated concrete walls that are equipped with large glazed emergency niche doors. In addition to these access doors, the emergency niche walls have a compartment for fire extinguishers.

The product guarantees fire protection up to T90 according to DIN 4102-5. The high durability of the concrete walls is achieved through special additives.

  • Concrete niche wall

  • Stainless steel emergency call niche door

  • Access to emergency call facilities via one-sided opening swing door

  • Equipped with an electrical compartment, fire extinguisher compartment and emergency call button

  • Painting according to RAL

  • Fire protection class of the closures T90 according to DIN 4102-5

  • Fire protection class of the wall F90 according to DIN 4102-04

Hodapp technical room doors:

This product allows access to technical rooms in the tunnel. The door is only operated by trained and authorized personnel.

  • Stainless steel (1.4404 / 1.4571)

  • Fire protection class: T30 and T90 according to DIN 4102-5

  • Smoke protection according to DIN 18095

  • Dust and splash-proof, with double seal

  • Material and surface according to customer requirements

Hodapp electronic niche walls:

Electronic walls are prefabricated concrete walls that allow access to electrical distribution niches. The electronic walls serve to protect the tunnel technology from external influences such as dirt, exhaust fumes and moisture. These measures ensure that the system remains functional in the event of an emergency. Access is only permitted for authorized personnel.

  • All stainless steel finishes

  • Access to the electronics via a one-sided opening swing door, 1 or 2 wings

  • Surface finish according to customer requirements