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US 4,834,580 AGranted
Method and device for driving a tunnel
AssigneeAtlas Copco Aktiebolag
InventorsPieter Barendsen, Bo O. R. Arnegard
Life of this patent
Estimating the term…
Abstract
Method and device for driving a tunnel by means of a tunneling machine (10). At the same time as the tunnel is driven, an injection hole (91) is drilled in front of the tunnel front (90) by a rock drilling machine (53) placed behind the tunneling machine.
Claims10
A method of driving a tunnel with a tunneling machine including a drill head (11), the steps of said method comprising:
- driving said drill head into the front surface (90) of a tunnel, and
- simultaneously drilling at least one drill hole (91) adapted to receive reinforcing material into the front surface of the tunnel at an angle relative to the longitudinal axis of the tunnel at the same time that said drill head is driven into the front surface of said tunnel.
An apparatus for driving a tunnel comprising a tunneling machine (10) having a drill head (11) to be driven into a front surface (90) of a tunnel;
- said apparatus further including a drilling device (50);
- said drilling device comprising a feed beam (51) oriented at an angle relative to the longitudinal axis of the tunnel, a drill guide (52) on the feed beam for guiding a drill tool (54), and a drilling machine (53) reciprocally movable along the feed beam for drilling a hole with said drill tool;
- said drilling device being arranged relative to the tunnel for drilling at least one hole adapted to receive reinforcing material in front of the front surface (90) of the tunnel simultaneously at the same time as said drill head (11) of said tunneling machine (50) is driven into the front surface (90) of the tunnel.
Dependencies are inferred from the claim text.