FIRE RESISTIVE SEGMENT AND FIRE RESISTIVE TUNNEL STRUCTURE

FIRE RESISTIVE SEGMENT AND FIRE RESISTIVE TUNNEL STRUCTURE

PROBLEM TO BE SOLVED: To provide a fire resistive segment which has high durability by protecting a fire resistive material which is able to exert sufficient strength even in case of fire, and which is superior in maintainability. SOLUTION: The fire resistive segment 10 being laid as tunnel lining i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IWATANI ICHIRO, YAMADA NORIO
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a fire resistive segment which has high durability by protecting a fire resistive material which is able to exert sufficient strength even in case of fire, and which is superior in maintainability. SOLUTION: The fire resistive segment 10 being laid as tunnel lining includes: an inside layer 20 which is made of a segment material; an outside layer 30 which is made of a segment material; a fire resistive material 40, which is provided in the state of being superposed between the inside and outside layers 20 and 30, and an anchor portion, such as a bracing bolt which passes through the fire resistive material 40 and which is embedded in the inside and the outside layers 20 and 30. COPYRIGHT: (C)2011,JPO&INPIT