发明名称 Parafuso de ancoragem expansível, e, sistema de aparafusamento de ancoragem
摘要 <p>The present invention is related to a rock bolt ( 7 ), expandable by means of a pressure media, for insertion into a borehole. The expandable bolt ( 7 ) comprises a connection unit ( 8 ) with means ( 11 ) for detachable interaction with an expansion means ( 10 ) for expansion of the rock bolt ( 7 ), as well as with a suspension element ( 16 ). The connection unit is designed with such external dimensions so that it may be inserted into the bore-hole. The invention also relates to such a rock bolting system.</p>
申请公布号 BRPI0410192(B1) 申请公布日期 2015.07.21
申请号 BR2004PI10192 申请日期 2004.05.12
申请人 ATLAS COPCO ROCK DRILLS AB 发明人 MORGAN KANFLOD;FREDRIK ÖBERG
分类号 E21D21/00;E21F17/02 主分类号 E21D21/00
代理机构 代理人
主权项
地址