SIMPLE MONITORING METHOD OF TUNNEL WORKING FACE AND MEASUREMENT DEVICE FOR HORIZONTAL MONITOR USED FOR THE METHOD

To provide a simple monitoring method of a tunnel working face which can grasp the behavior of a working face easily and at an early stage, and to provide a measurement device for horizontal monitor used for the method.SOLUTION: A simple monitoring method of a tunnel working face comprises steps of:...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NAKAKUMA SHUHEI, ICHIKAWA AKIO, TSUBOI KEITA, FUJIWARA SHOJI, MIKI TATSUO, MATSUMOTO HIROKI, SATO HIROTAKA, FUJIWARA NOBUTERU, ISEDA YUTA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES GYROSCOPIC INSTRUMENTS LARGE UNDERGROUND CHAMBERS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS MINING NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SHAFTS SURVEYING TESTING TUNNELS
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