Hollow grouting type thorn anchor rod

The utility model belongs to the technical field of roadway support, and particularly relates to a hollow grouting type thorn anchor rod. Comprising a sealing plug, a nut, a base plate, a stop-grouting plug, a grouting hole, a thorn block, a thorn anchor rod body, a drill hole and a rock mass. The t...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN JIANXING, ZENG BANQUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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