METHOD AND DEVICE FOR DETECTING ASSEMBLY POSITION OF SEGMENT

PROBLEM TO BE SOLVED: To efficiently assemble segments by easily and correctly positioning new hexagonal segments with respect to existing hexagonal segments in executing linings by the hexagonal segments on a wall surface of an excavated tunnel. SOLUTION: When new hexagonal segments 1B held by a se...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	HATAYAMA EIICHI
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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