Rock bolt
    1.
    发明授权
    Rock bolt 失效
    岩石螺栓

    公开(公告)号:US4413929A

    公开(公告)日:1983-11-08

    申请号:US471136

    申请日:1983-03-01

    摘要: A rock bolt comprising a bolt body, a bag member directly surrounding an outer periphery of the bolt body adjacent to one end thereof, retainer means from securely fixing the bag member direct to the bolt body, a first tube means for feeding packing material into the bag member and extending through the bag member and toward the other end of the bolt body. The packing material filled into the bag member acts to lid or plug the hole into which the rock bolt has been inserted.

    摘要翻译: 一种岩石螺栓,包括螺栓体,直接围绕所述螺栓本体的与其一端相邻的外周的袋构件,将所述袋构件牢固地固定到所述螺栓本体的保持装置,用于将包装材料送入所述螺栓体的第一管装置, 袋构件并延伸穿过袋构件并朝向螺栓体的另一端。 填充到袋构件中的包装材料用于盖住或堵塞已经插入岩石螺栓的孔。