Protective Measures Implemented in Urban Tunnels to Prevent Flames

The Rastatt road tunnel, located under Kriegsstraße, is a significant addition to Germany's infrastructure, designed to reduce inner-city traffic. The project, a joint venture between Ed. Züblin AG and Hochtief AG, posed challenges in terms of technology and safety.

One of the key components of the tunnel's safe design is the use of advanced sealing resin. This resin, used extensively throughout the project, is designed to improve the overall safety and durability of the structure. It is resistant to chemicals and weather conditions, ensuring it can withstand the demanding conditions of tunnel construction. Moreover, it is designed to reduce maintenance costs in the long run.

The sealing resin is not the only safety measure implemented during construction. Emergency call box doors and flaps for fire extinguisher removal compartments are also part of the comprehensive safety measures. Hodapp, a licensee of System Schroder, supplied and installed these safety features, along with fire and escape doors.

Hodapp's door solutions are made of robust stainless steel and are equipped with signal and escape route lighting depending on their intended use. They meet fire resistance classes T30 and T90 according to DIN 4102-5, ensuring they can withstand intense heat. They are also designed to withstand dynamic pressure and suction loads encountered in tunnel operation, ensuring they can perform effectively under demanding conditions.

System Construction, involved in the construction of bridges and parking garages in addition to tunnels, has also contributed to the project. Their expertise in large-scale tunnel construction projects has been instrumental in the successful completion of the Rastatt road tunnel.

The door systems from System Schroder were also part of the safe design of the tunnel. ABUS, expanding its product range, has also provided sealing resin for various construction projects. The personal protective equipment used in the tunnel construction process includes elastic materials, ensuring the safety of workers during the construction phase.

The Rastatt road tunnel under Kriegsstraße is a testament to the advancements in infrastructure construction and safety measures. It is a project that demonstrates the combined efforts of various companies, each bringing their unique expertise to ensure a safe and durable tunnel for the future.