CONTROLLED EXPANSION OF ROCK BOLT

The present invention is related to a method for manual installation of rock bolts expandable by means of a pressure media comprising manual coupling of a pressure source to a rock bolt to be expanded. The method comprises the steps of an operator starting a sequence whereby the rock bolt is pressur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOIVONEN, TAPIO, OERJAS, NICLAS, PERSSON, TOMMY, SJOESTEDT, GOERAN, OEBERG, FREDRIK, KANFLOD, MORGAN, GUSTAVSSON, HANS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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Beschreibung
Zusammenfassung:	The present invention is related to a method for manual installation of rock bolts expandable by means of a pressure media comprising manual coupling of a pressure source to a rock bolt to be expanded. The method comprises the steps of an operator starting a sequence whereby the rock bolt is pressurized to a predetermined pressure, and it being ensured that the predetermined pressure is kept for a predetermined period of time. The present invention is also related to such a control system, and an apparatus comprising such a control system.