Rock bolt fastening rig and rock reinforcement method

Abstract

This invention provides a rock bolt tightening rig and a rock reinforcement method for reinforcing rock surfaces by installing cable bolts in boreholes. [Solution] The bolt-tightening rig (1) comprises a movable carrier (2), a bolt-tightening boom (3) attached to a boom mounting point (16), and a bolt-tightening unit (4) attached to the bolt-tightening boom. It also includes a cable reel mechanism (9) including a cable reel (18) loaded with wound cable (26). The cable reel mechanism is located at the front of the carrier and in front of the boom mounting point.

Claims

1. A rock bolt tightening rig (1) for reinforcing the rock surface by installing cable bolts (5) in a borehole (6), A carrier (2) that is movable in the operating direction (OD) and the opposite reversing direction (RD), At least one bolted boom (3) is attached to the boom mounting point (16) on the carrier (2) and configured to face the operating direction (OD), At least one bolt-tightening unit (4) is attached to the tip of the bolt-tightening boom (3), Supported on the carrier (2), at least one cable reel mechanism (9) capable of housing a wound cable (26), At least one cable feeding device (27, 27a) for feeding the cable from the cable reel mechanism (9) to the bolt tightening unit (4), A guide mechanism (10) for guiding the cable (26) from the cable reel mechanism (9) to the bolt tightening unit (4) and Equipped with, The cable reel mechanism (9) is located in front of the boom mounting point (16). A bolt-fastening rig characterized by the following:

2. The cable reel mechanism (9) includes a cable reel (18) on which the cable (26) is wound, and the cable reel (18) is rotatable with respect to a vertical rotation axis (V). A bolt fastening rig according to claim 1, characterized by the above.

3. The cable reel mechanism (9) is located in front of the carrier (2). A bolt fastening rig according to claim 1 or 2, characterized by the above.

4. The cable reel mechanism (9) is movably supported on the carrier (2) by at least one swivel joint (22, 23) and a swivel actuator. A bolt fastening rig according to claim 1 or 2, characterized by the above.

5. The cable reel mechanism (9) is connected to the front of the carrier (2) and supported by a handling arm (22) configured to protrude from the carrier (2) in the longitudinal direction of the carrier (2). A bolt fastening rig according to claim 1 or 2, characterized by the above.

6. The cable reel mechanism (9) includes a cable cassette (25), and the cable reel (18) is arranged inside the cable cassette (25) which forms the periphery of the cable reel (18) around which the cable (26) is wound and the support structure. A bolt fastening rig according to claim 1 or 2, characterized by the above.

7. The cable reel mechanism (9) is provided with a cable feeding device (27a) for feeding the cable (26). A bolt fastening rig according to claim 1 or 2, characterized by the above.

8. The bolt-tightening rig (1) comprises at least two cable reels (18), The guide mechanism (10) includes a branch guide element (21) that allows for the selective feeding of one cable at a time from one of the cable reels (18). A bolt fastening rig according to claim 1 or 2, characterized by the above.

9. A method of reinforcing rocks, The bolt-tightening rig (1) is used, which comprises a carrier (2), a bolt-tightening boom (3), a bolt-tightening unit (4), and a cable reel (18). The rock drill (7) of the bolt tightening unit (4) drills a borehole (6) on the rock surface, The grout material is supplied to the excavated hole (6), The cable bolt (5) is fed from the cable reel (18) to the excavation hole (6) by the feeding device (27, 27a), Cutting the cable bolt (5) outside the excavated hole (6) and Includes, The cable reel (18) is supported at the front of the carrier (2), and the cable reel (18) is operated independently of the bolt-tightening boom (3). A method characterized by the following.

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