TUNNEL SEGMENT

PROBLEM TO BE SOLVED: To prevent an explosion of a filling concrete layer, when a fire is caused in a tunnel, without particularly arranging a fire resistant covering material. SOLUTION: This tunnel segment is constituted so that its filled filling concrete layer 5 side can be arranged toward the tu...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	AOKI TOSHIYUKI, MUKONO KATSUHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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