FRICTION BOLT

A friction bolt assembly to frictionally engage a bore formed in rock strata. The assembly comprises an elongate tube and an expander mechanism acted on by an anchor mechanism via an elongate bar or cable. A retainer mechanism is mounted to act between the bar or cable and the tube to prevent ejecti...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	RATAJ, MIECZYSLAW, YOUNG, PETER, DARLINGTON, BRADLEY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!