Temporary supporting device for underground coal mine rock roadway tunneling

The utility model belongs to the technical field of underground coal mine construction equipment, and particularly relates to a temporary support device for underground coal mine rock drift tunneling, which comprises four steel plates, two connecting rods, two I-beams, a plurality of resin anchor ro...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHAO HAIBO, ZHANG DINGSHAN, HE LIJU, ZHUO JUN, GAO SIXIONG, GAO LINPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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