| 摘要 |
PROBLEM TO BE SOLVED: To provide a tunnel fire-resisting structure capable of efficiently carrying out construction work at a low cost and, at the sme time, exhibiting fire resistance efficiency excellent in the case a fire occurs in the tunnel fire-resisting structure constructed along the inner circumferential surface of a tunnel for protecting the tunnel structure from heat of the fire. SOLUTION: The tunnel fire-resisting structure 11 is formed by connecting a plurality of tunnel segments 1 along the inner circumferential surface of the tunnel. The surface on a tunnel space side of the tunnel segments 1 is partially formed as the outside surface 2, and the rest of the surface is formed as the inside surface of a recess section 3. A coating layer 12 consisting of a foaming fire resistive paint having a foamingly expanded character when it reaches a predetermined temperature is formed on the inner surface of the recess section 3. A fire-resisting coating layer 13 consisting of mortar is formed on the outside surface 2. It is favorable that the coating layer 12 and the fire-resisting coating layer 13 are partially laminated. COPYRIGHT: (C)2005,JPO&NCIPI
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