CONTROLLED EXPANSION OF ROCK BOLT
Application 2032/KOLNP/2005 published 2006-10-13, filed 2005-10-17
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. (FIG. 1)
Applicant
ATLAS COPCO ROCK DRILLS AB
SE-701 91 OREBRO, SWEDEN
Inventor
PERSSON, TOMMY; KANFLOD, MORGAN; OBERG, FREDRIK; TOIVONEN, TAPIO; ORJAS, NICKLAS; GUSTAVSSON, HANSÂ’ SJOSTEDT, GORAN
International Info
Classification: E21D 20/00
Publication Number: WO 04/099570
Application Date: 2004-05-12
Priority Information
0301377.8 SWEDEN 2003-05-12