发明名称 |
Method of controlling rock drilling |
摘要 |
A method of controlling rock drilling wherein the cut length changes from a predetermined cut length, the drilling length is changed by transferring the position of the pattern in the longitudinal direction of the tunnel so that the positions of the end points of the holes remain essentially the same with respect to one another, and a collaring surface is crosswise of the tunnel and different from the actual rock surface. |
申请公布号 |
AU7534198(A) |
申请公布日期 |
1998.12.30 |
申请号 |
AU19980075341 |
申请日期 |
1998.05.29 |
申请人 |
TAMROCK OY |
发明人 |
PERTTI KOIVUNEN;SIMO SANERMA;ERKKI EILO |
分类号 |
E21B7/02;E21B15/00;E21B19/08;E21B44/00;E21B44/02;E21C37/16;E21D9/00 |
主分类号 |
E21B7/02 |
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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