Rock bolt

Details Rock bolt Rock bolt

E - Fixed Constructions

21

D

E21D 21/00 (2006.01)

Patent

CA 2466283

A rock bolt which includes a tubular member, a device at one end of the tubular member for mechanically anchoring the tubular member inside a hole in a rock face, a bar which is partly inside the tubular member with a threaded portion which projects from the tubular member, and wherein the tubular member is formed with load resisting formations which restrain the bar from being pulled out of the tubular member.

L'invention porte sur un boulon d'ancrage doté d'un élément tubulaire, d'un dispositif situé à une extrémité de l'élément tubulaire afin d'être mécaniquement fixé à l'élément tubulaire à l'intérieur d'un trou d'une face d'ancrage, d'une barre en partie positionnée dans l'élément tubulaire avec une partie filetée qui fait saillie hors de l'élément tubulaire. Cet élément tubulaire comporte des formations qui résistent aux charges et empêchent la barre de sortir de l'élément tubulaire.

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