| 摘要 |
Method and device for rock bolting, wherein a tubular bolt ( 2 ) with closed cross-section is inserted and expanded for anchoring inside a bore hole ( 12 ), wherein the tubular bolt is expanded to contact in the inner portion of the bore hole, a tension element ( 3, 7, 8, 9 ) which is arranged in the outer portion of the bore hole with an inner part ( 7 ) attached to the tubular bolt ( 2 ) is pre-stressed and a settable medium is injected into the outer portion of the bore hole ( 14 ) between ( 27 ) the tension element and the wall of the bore hole and is allowed to set. |
