Guideline for the Fire Protection of Concrete in Tunnel Structures (Draft) by JSCE
By M. Ozawa, M. Iwanami, Y. Oshima, T. Kanda, T. Takimoto and N. Kurihara
Concrete Journal, Vol.52, No.12, Dec. 2014
- Synopsis
- In recent years, construction planning of large-scale tunnels using the shield tunneling method has been increasing along with the rise in the utilization of deep underground space. Such tunnels require a tunnel structural building frame with a specified level of fire resistance so as to retain functionality in the event of a fire of a given severity. Consequently, many fire protection approaches for concrete, a constituent of tunnel structures, have been developed, but no unified guidelines for the design and execution of fire protection exist at present. For this reason, the "Subcommittee for Research on Fire Protection Technology for Concrete Tunnel Structures (270) " was established under the Concrete Committee of the Japan Society of Civil Engineers. This subcommittee has developed a Guideline for the Fire Protection of Concrete in Tunnel Structures (Draft) based on actual fire protection design and construction projects and the latest research findings. Namely (1) fire protection objectives and performance requirements, (2) fire protection design and verification, (3) fire protection construction, and (4) fire protection maintenance. This paper provides an overview of this guideline.
- Keywords:
- concrete tunnel, fire protection, types of fire protection, selection of fire protection, fire protection design, fire protection construction, fire protection maintenance
