| 摘要 |
PROBLEM TO BE SOLVED: To provide high-reliability segment assembling equipment of a tunnel boring machine, which can sufficiently adapt to a large-sized excavation cross-section shape, and which facilitates the assembly of a segment formed in various excavation cross-section shapes. SOLUTION: A T-shaped cross-section rail 15 is annularly laid on the inner periphery of an excavator body 10 of a manual excavation shield machine with an arbitrary excavation cross-section; an erector device body 20, which is equipped with guide rollers 16, 17 and 18 brought into contact with upper, lower, right and left surfaces in a cross-sectional view of the rail, respectively, can be self-propelled by meshing a motor-driven sprocket 25, internally mounted in the erector device body, with a pin roller train 23 annexed throughout the length of the rail; and the excavator body 10 is provided with a telescopic stopper 50 which prevents the fall of the erector device body 20. COPYRIGHT: (C)2011,JPO&INPIT
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