Tunnel secondary lining concrete cavity prevention device

The utility model discloses a tunnel secondary lining concrete cavity prevention device, which belongs to the technical field of constructional engineering, and is characterized by comprising a mounting frame, a screw rod is rotatably connected between the left side and the right side in the mountin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LUO WEIBIN, LUO ZHONGQING, CUI JIANWEN, ZHANG JING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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