CUTTER HEAD FOR SHIELD MACHINE

CUTTER HEAD FOR SHIELD MACHINE

PROBLEM TO BE SOLVED: To provide a cutter head for a shield machine enabling the execution of works of a sharp curve in which a large overbreak is required. SOLUTION: The strokes of a side over cutter and a copy cutter can be ensured in extremely long sizes by making the axes of the side over cutter...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MITANI NORIO, MURANISHI MASANORI
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 cutter head for a shield machine enabling the execution of works of a sharp curve in which a large overbreak is required. SOLUTION: The strokes of a side over cutter and a copy cutter can be ensured in extremely long sizes by making the axes of the side over cutter and the copy cutter eccentric so as not to be passed through the center of a rocking or center of rotation of the cutter head for the shield machine. Consequently, the cutter head for the shield machine with the side over cutter and the copy cutter enabling the execution of works of the sharp curve and having the large overbreak can be obtained. COPYRIGHT: (C)2004,JPO&NCIPI