CONTINUOUS FIBER REINFORCING MATERIAL FOR CONCRETE WALL TO BE CUT AND REINFORCING STRUCTURE AND REINFORCING METHOD OF CONCRETE WALL BY USING THE MATERIAL

• Main Authors: NAKA RIYOUICHI, HAYASHIDA MICHIYA, MAIKUMA HIRONORI, YOSHIZUMI TOSHIHIKO
• Format: Patent
• Language: English
• Published: 02.12.1997
• Edition: 6
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

PROBLEM TO BE SOLVED: To constitute a wall surface capable of being cut by a method wherein hollow cylindrical bodies are fitted and superposed, and the cylindrical bodies are cut vertically and connected back to back and continuous reinforcement bodies are configured in sheathing concrete walls in shield-machine departure and arrival sections. SOLUTION: The tapered sections 10 of hollow cylindrical bodies 9 made of a continuous fiber-reinforced resin are fitted and superposed to shaft components 7 arranged to the lower section of a cutting range 12 and made of steel through bearing members 6 made of steel to configure a hollow continuous reinforcement body 11, the internal spaces of the hollow continuous reinforcement body 11 are filled with concrete, etc., and the hollow continuous reinforcement body 11 is connected to shaft components 7a made of steel in upper sections through engaging members 6a made of steel. The hollow cylindrical members are cut vertically, and joined back to back by bolts and nuts made of the fiber-reinforced resin through splice plates, the longitudinal direction is also united similarly and long-sized reinforcing bodies are formed, and the long-sized reinforcing bodies are connected to upper and lower shaft steel members 7, 7 made of steel. Accordingly, the weak point in strength of the joining sections of the web and flange of an H-shaped sectional reinforcing material made of the continuous fiber-reinforced resin is avoided, and the reinforcing bodies capable of being cut by an excavator can be constituted.