STARTING METHOD FOR SHIELD MACHINE

STARTING METHOD FOR SHIELD MACHINE

PROBLEM TO BE SOLVED: To facilitate removal work after temporary excavation by using an intermediate support material in place of a temporary segment at the start of a shield machine, and to facilitate the carrying-in of the segment, the carrying-out of excavated soil, etc. during the temporary exca...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOMINAMI YUKIHIRO, OSATO MASAHIRO, SUZUKI TAKAHIDE, MITSUMATA KAZUHIKO, HIRAHARA NAOKI
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 facilitate removal work after temporary excavation by using an intermediate support material in place of a temporary segment at the start of a shield machine, and to facilitate the carrying-in of the segment, the carrying-out of excavated soil, etc. during the temporary excavation. SOLUTION: After the shield machine 2 is jacked by a base-pushing jack 1, a lower jack 11 of the base-pushing jack 1 is contracted so that a lower intermediate support material 5 can be inserted between the shield machine 2 and the base-pushing jack 1. Upper jacks 12 and 13 of the base-pushing jack 1 are contracted so that an upward-opened upper intermediate support material 6 can be inserted between the shield machine 2 and the base-pushing jack 1. Subsequently, the shield machine 2 is jacked by the base-pushing jack 1 via the upper and lower intermediate support materials 6 and 5. COPYRIGHT: (C)2009,JPO&INPIT