ERECTOR FOR SMALL-DIAMETER SHIELD

PROBLEM TO BE SOLVED: To provide an erector for a small-diameter shield which can stably support a segment.SOLUTION: The erector 1 for the small-diameter shield includes: a revolving frame 3 which is provided in a coaxially revolvable manner in a shield body 2; a segment gripping portion 6 which is...

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Bibliographische Detailangaben
Hauptverfasser:	OSADA MASAO, YOSHIDA YUZURU
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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