CUTTER PLATE FOR TUNNEL BORING MACHINE
PROBLEM TO BE SOLVED: To provide a cutter plate for a tunnel boring machine recovered after the construction of a tunnel, attaining smooth excavation while positively receiving jacking reaction during tunnel excavation and smoothly carrying out recovery after tunnel excavation. SOLUTION: The cutter...
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| creator | SATO HIROMI HATAYAMA EIICHI CHIHARA HIDEKI TAKUBO ATSUSHI |
| description | PROBLEM TO BE SOLVED: To provide a cutter plate for a tunnel boring machine recovered after the construction of a tunnel, attaining smooth excavation while positively receiving jacking reaction during tunnel excavation and smoothly carrying out recovery after tunnel excavation. SOLUTION: The cutter plate 1 is formed by providing the outer peripheral surface of a center cutter plate part 2 detachably with the inner peripheral surface of an outer peripheral cutter plate part 3 of annular shape. The outer peripheral surface of the center cutter plate part 2 and the inner peripheral surface of the outer peripheral cutter plate part 3 joined to the outer peripheral surface are formed in tapered surfaces inclining in a diameter enlarging direction backward from the front, and the jacking reaction applied to the front face of the outer peripheral cutter plate part 3 is positively received by the center cutter plate part 2 through the tapered faces during excavation. When recovering a boring machine body 10, the outer peripheral surface of the center cutter plate part 2 is smoothly detached from the inner peripheral surface of the outer peripheral cutter plate part 3. COPYRIGHT: (C)2007,JPO&INPIT |
| format | Patent |
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SOLUTION: The cutter plate 1 is formed by providing the outer peripheral surface of a center cutter plate part 2 detachably with the inner peripheral surface of an outer peripheral cutter plate part 3 of annular shape. The outer peripheral surface of the center cutter plate part 2 and the inner peripheral surface of the outer peripheral cutter plate part 3 joined to the outer peripheral surface are formed in tapered surfaces inclining in a diameter enlarging direction backward from the front, and the jacking reaction applied to the front face of the outer peripheral cutter plate part 3 is positively received by the center cutter plate part 2 through the tapered faces during excavation. When recovering a boring machine body 10, the outer peripheral surface of the center cutter plate part 2 is smoothly detached from the inner peripheral surface of the outer peripheral cutter plate part 3. 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SOLUTION: The cutter plate 1 is formed by providing the outer peripheral surface of a center cutter plate part 2 detachably with the inner peripheral surface of an outer peripheral cutter plate part 3 of annular shape. The outer peripheral surface of the center cutter plate part 2 and the inner peripheral surface of the outer peripheral cutter plate part 3 joined to the outer peripheral surface are formed in tapered surfaces inclining in a diameter enlarging direction backward from the front, and the jacking reaction applied to the front face of the outer peripheral cutter plate part 3 is positively received by the center cutter plate part 2 through the tapered faces during excavation. When recovering a boring machine body 10, the outer peripheral surface of the center cutter plate part 2 is smoothly detached from the inner peripheral surface of the outer peripheral cutter plate part 3. 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SOLUTION: The cutter plate 1 is formed by providing the outer peripheral surface of a center cutter plate part 2 detachably with the inner peripheral surface of an outer peripheral cutter plate part 3 of annular shape. The outer peripheral surface of the center cutter plate part 2 and the inner peripheral surface of the outer peripheral cutter plate part 3 joined to the outer peripheral surface are formed in tapered surfaces inclining in a diameter enlarging direction backward from the front, and the jacking reaction applied to the front face of the outer peripheral cutter plate part 3 is positively received by the center cutter plate part 2 through the tapered faces during excavation. When recovering a boring machine body 10, the outer peripheral surface of the center cutter plate part 2 is smoothly detached from the inner peripheral surface of the outer peripheral cutter plate part 3. COPYRIGHT: (C)2007,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_JP2007169947A |
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| subjects | EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS |
| title | CUTTER PLATE FOR TUNNEL BORING MACHINE |
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