Coal mine tunnel anti-collapse supporting device and supporting method thereof

The invention discloses a coal mine tunnel anti-collapse supporting device and a supporting method thereof, and belongs to the field of coal mining. The supporting device comprises a first top plate and a second top plate which are hinged to each other and adjustable in relative angle, two supportin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	JIAO JINBAO, NIU XUEJUN, YUE XIZHAN, GUO LIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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