WATER CONDUCTING CONSTRUCTION METHOD IN TUNNEL

PURPOSE: To form a channel of water conducting ditch easily and inexpensively which drains leakage of water in inner walls of a tunnel of a road and the like. CONSTITUTION: A kerf 3 along the longitudinal direction of a tunnel 1 is equipped by means of a concrete cutter on a floor surface 12 in the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NAKANO TERUO, TOGO TATSUO
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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