Modularized assembly type tunnel ventilation pipeline

The utility model discloses a modularization assembly type tunnel ventilating duct, including hoop, upper air duct, lower air duct and locking mechanism, said upper air duct and said lower air duct both have semi-tubular structure and contact connection through the locking mechanism, said locking me...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIU FEIYANG, YAO JIE, GONG YANFENG, XIAO MINGQING, ZONG JINGLIANG, GUAN HONGHAO, HU YI, JIANG XUEPENG
Format:	Patent
Sprache:	chi ; 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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