SAFETY DEVICE FOR TUNNEL CONSTRUCTION AND TUNNEL CONSTRUCTION METHOD

To provide a safety device for tunnel construction and a tunnel construction method capable of improving the safety of powder charging work by an operator adjacent to a pit face.SOLUTION: A tunnel construction method includes steps of: a drilling step (S1) for drilling a plurality of bar body insert...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MIYAJIMA YASUYUKI, AOYANAGI TAKAHIRO, KOBAYASHI HIROFUMI, KAWABATA SATOSHI, MEGA TAKASHI, TANAKA HISATO, MORISHITA KEIICHI, ICHIBA DAIGO, FUKUSHIMA DAISUKE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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