| 发明名称 |
CONTROLLED EXPANSION OF ROCK BOLT |
| 摘要 |
<p>The present invention is related to a method for manual installation of rock bolts expandable by means of a pressure media comprising manual coupling of a pressure source to a rock bolt to be expanded. The method comprises the steps of an operator starting a sequence whereby the rock bolt is pressurized to a predetermined pressure, and it being ensured that the predetermined pressure is kept for a predetermined period of time. The present invention is also related to such a control system, and an apparatus comprising such a control system.</p> |
| 申请公布号 |
KR20060012603(A) |
申请公布日期 |
2006.02.08 |
| 申请号 |
KR20057021527 |
申请日期 |
2005.11.11 |
| 申请人 |
ATLAS COPCO ROCK DRILLS AB |
发明人 |
PERSSON TOMMY;KANFLOD MORGAN;OBERG FREDRIK;TOIVONEN TAPIO;ORJAS NICLAS;GUSTAVSSON HANS;SJOSTEDT GORAN |
| 分类号 |
E21D20/00;E21D21/00 |
主分类号 |
E21D20/00 |
| 代理机构 |
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