TAIL SEAL OF SHIELD MACHINE

TAIL SEAL OF SHIELD MACHINE

PROBLEM TO BE SOLVED: To provide a tail seal of a shield machine, which maintains water cut-off performance with improved durability.SOLUTION: There is provided a tail seal 11 of a shield machine 1 which is provided at a cylindrical tail plate 4 constituting the shield machine and seals a gap betwee...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YAMAGISHI TERUYO, HIRAOKA MITSUHIKO, YAMAGISHI YASUO
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 tail seal of a shield machine, which maintains water cut-off performance with improved durability.SOLUTION: There is provided a tail seal 11 of a shield machine 1 which is provided at a cylindrical tail plate 4 constituting the shield machine and seals a gap between a segment lining body 6 arranged inside the tail plate 4 and the tail plate 4. The tail seal 11 comprises a seal body 17 for sealing the gap, a seal member 12 formed of a base member 18 to which the seal body 17 is attached, and an attachment member 16 for attaching the seal member 12 to the tail plate 4. The seal body 17 is formed of a rubber material having independent bubbles.