TERMINAL PIPE IN PRERECEIVING STEEL PIPE

PROBLEM TO BE SOLVED: To provide a terminal pipe in a prereceiving steel pipe for easily cutting off a part of the prereceiving steel pipe from the other part, after finishing driving in the natural ground, while preventing division when driving in the natural ground. SOLUTION: This prereceiving ste...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HAGIWARA TOMOHISA, DOI SHIGETAKA, TAMAMURA KOUJI, NISHINO TATSUYA, SATO MASAAKI, TSUKADA JUNICHI, YOSHIDA NORIFUMI, ONOZUKA DAISUKE
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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