STARTING DEVICE OF SHIELD MACHINE AND METHOD THEREOF

PROBLEM TO BE SOLVED: To easily and surely start a shield machine from a shaft. SOLUTION: A starting entrance formed in an earth retaining wall of a shaft 1, an external cylinder 20 provided sideways in the shaft 1 and having the starting entrance, an internal cylinder 30 placed in the shaft 1 in a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	INO TOSHIMI, TAZAKI NANAKO
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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