Anchor hiding device for underground roadway support

The anchor hiding device comprises a rock body and a top plate, the top plate is located below the rock body, an anchor rod is arranged at the bottom of the rock body, the top of the top plate is detachably connected with an installation plate through a fixing piece, the top of the installation plat...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YANG APAN, AN DENGTAO, YUAN SHUAIQIANG, MA SHIPENG, WU YANBIN, SHI XIN'EN, GUO JIA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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