FIBER REINFORCEMENT COLUMN BODY FOR SHIELD EXCAVATION

PROBLEM TO BE SOLVED: To provide a fiber reinforcement column body for shield excavation, promoting splitting of an FRP reinforcement bar and concrete block, improving the work efficiency, and constituting a fiber reinforcement concrete wall body which can be cut by a shield machine. SOLUTION: This...

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Bibliographic Details
Main Author NAKA RYOICHI
Format Patent
LanguageEnglish
Published 28.10.2004
Edition7
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:PROBLEM TO BE SOLVED: To provide a fiber reinforcement column body for shield excavation, promoting splitting of an FRP reinforcement bar and concrete block, improving the work efficiency, and constituting a fiber reinforcement concrete wall body which can be cut by a shield machine. SOLUTION: This elongated fiber reinforcement column body 1 constituting a wall body which can be cut by the shield machine includes: a matrix material 2 trapezoidal in cross section and formed to be extended in the axial direction; and a fiber reinforcement material 3 extended in the axial direction of the matrix material 2 and arrayed along the long side 1a and the short side 1b of the trapezoidal section. The fiber reinforcement material 3 is U-shaped in section, and is arranged so that the U-shaped opening part is positioned inside. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030095875