Tunnel excavation method

This tunnel excavation method includes a step of excavating three first tunnels that are substantially parallel to each other in a first excavation step. Second tunnels are excavated that intersect the first tunnels in a second excavation step. A boring machine is used that performs excavation in a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANIMOTO JUNYA, ASANO HIROSHI, KAWAI KAZUNARI, MINAMI TAKASHI, UETAKE MASAAKI, TERADA SHINICHI, KODAMA YUUICHI
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAFTS TUNNELS
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Beschreibung
Zusammenfassung:	This tunnel excavation method includes a step of excavating three first tunnels that are substantially parallel to each other in a first excavation step. Second tunnels are excavated that intersect the first tunnels in a second excavation step. A boring machine is used that performs excavation in a state in which a gripper pushes against the side wall of the tunnel.