发明名称 |
Method and device for drilling a hole and for securing an anchorage in a bore hole |
摘要 |
<p>A method and a device for the drilling, in particular the percussive or percussive rotary drilling of a hole in earth or rock and for securing an anchorage in the hole. A bore hole is created by a drill bit mounted on a drill pipe and a sliding sleeve that surrounds the drill pipe at a distance is simultaneously introduced. A sliding sleeve configured with a longitudinal slit is introduced at least partially and rests substantially against the bore hole during the drilling, whereby a reliable anchorage can be achieved with a simple construction by the sliding sleeve with a longitudinal slit.</p> |
申请公布号 |
HK1066581(A1) |
申请公布日期 |
2008.07.04 |
申请号 |
HK20040109479 |
申请日期 |
2004.12.01 |
申请人 |
ALWAG TUNNELAUSBAU GESELLSCHAFT MBH |
发明人 |
JOSEF MOCIVNIK |
分类号 |
E21D;E21B17/00;E21D20/00;E21D21/00 |
主分类号 |
E21D |
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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