发明名称 |
СПОСОБ АНКЕРНОЙ АРЕПИ И АНКЕРНЫЙ БОЛТ |
摘要 |
A method for providing a rock bolt ( 2 ) for rock bolting, wherein a rock bolt ( 2 ) having a tubular bolt portion ( 4 ) with a closed cross section is inserted and expanded for bearing contact in a bore hole ( 3 ) in a rock structure ( 1 ). The length of the tubular bolt portion ( 4 ) is determined such that maximum frictional force at pulling inside a bore hole ( 3 ) of a rock bolt with a tubular bolt portion with this length is below a predetermined maximum value. The invention also concerns a rock bolt. |
申请公布号 |
RU2006145897(A) |
申请公布日期 |
2008.06.27 |
申请号 |
RU20060145897 |
申请日期 |
2005.04.18 |
申请人 |
АТЛАС КОПКО РОКК ДРИЛЛС АБ (SE) |
发明人 |
ЭБЕРГ Фредрик (SE);БЮРО Марио (CA);ШАРЕТТ Франсуа (AT) |
分类号 |
E21D21/00;E21D;E21D21/02 |
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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