发明名称 |
METHOD AND DEVICE FOR ROCK BOLTING |
摘要 |
<p>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.</p> |
申请公布号 |
WO2004099569(A1) |
申请公布日期 |
2004.11.18 |
申请号 |
WO2004SE00731 |
申请日期 |
2004.05.12 |
申请人 |
ATLAS COPCO ROCK DRILLS AB;OBERG, FREDRIK;KANFLOD, MORGAN |
发明人 |
OBERG, FREDRIK;KANFLOD, MORGAN |
分类号 |
E21D21/00;(IPC1-7):E21D20/00 |
主分类号 |
E21D21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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