TUNNEL BACK-FILLING APPARATUS

PROBLEM TO BE SOLVED: To provide a tunnel back-filling apparatus which can not only shorten an excavating period but also easily control its position. SOLUTION: The tunnel back-filling apparatus carries out back-filling of a tunnel E while removing an existing tunnel structure A. The apparatus inclu...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TAKAMOTO KOHEI, YAMAMURA TADASHI, KURAKI SHIYUUJI, SUZUKI ETSUO
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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