Applicability of water screen fire disaster prevention system to road tunnels in japan: Fid-Bau Portal

Applicability of water screen fire disaster prevention system to road tunnels in japan

Amano, R. / Kurioka, H. / Kuwana, H. / Murakami, M. / Tsuruda, T. / Suzuki, T. / Ogawa, Y.

With the enforcement of the Special Measures Act for Public Use of Deep Underground as well as with ongoing urban renewal, there is a need for fire disaster prevention technology to secure the occupants safety in case of fire breaking-out in any underground space. In this respect, a fire disaster prevention system using a water screen was developed for potential fires in underground spaces. This system is aimed at securing the occupants integrity from the fire by partitioning the fire zone using a water screen and also at the safety of a structure by reducing damage due to the fire. It would correspond to the performance-based-design for providing refuge for the occupants. In the paper, results obtained from experiments on the characteristics of the water screen when used as partitioning technology will be described first. Next, the applicability of this water screen fire disaster prevention system to road tunnels will be examined. A rational design of a fire disaster prevention system including specifications of ventilation equipment and fire prevention equipment for the arrangement of places of safety can be made by combining the simulation of occupants actions for refuge and both a third mode heat behavior analysis and a smoke flow analysis. In the future, development for further improving this system will be carried out.