A method of rock bolting, and a device, and a roof bolting apparatus
    2.
    发明公开
    A method of rock bolting, and a device, and a roof bolting apparatus 失效
    Ankerausbauverfahren,Gerätdafürund Ankerausbauvorrichtung。

    公开(公告)号:EP0126046A1

    公开(公告)日:1984-11-21

    申请号:EP84850123.5

    申请日:1984-04-12

    IPC分类号: E21D20/02

    CPC分类号: E21D20/003 E21D20/021

    摘要: In roof bolting, when an anchor rod (24) is to be inserted in a borehole (26) in the rock, a cement grout is ejected as a jet from a nozzle (22) located at the mouth of the borehole to partially fill the hole before the rod is forced into the borehole. The jet of grout should have such a velocity that it reaches the bottom of the borehole. A grout pump (45,60) forces the grout through a hose (28) to the nozzle (22).

    摘要翻译: 在屋顶螺栓中,当将锚杆(24)插入到岩石中的钻孔(26)中时,水泥浆料作为射流从位于钻孔口处的喷嘴(22)喷射,以部分地填充 在杆被迫进入井眼之前的孔。 喷浆机应该具有这样的速度,即它到达钻孔的底部。 灌浆泵(45,60)迫使灌浆通过软管(28)到喷嘴(22)。