POINT ANCHOR COATED MINE ROOF BOLT

Disclosed is a mine roof bolt comprising: an elongated rod having a first end and a second end; and a segmented resin compression layer covering at least a portion of said elongated rod between said first end and said second 5 end. The segmented layer comprises a plurality of tapered segments, each...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	STANKUS, JOHN C, SIMMONS, WALTER J, SIMMONS, W. NEAL, OLDSEN, JOHN G
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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