Rock bolt and method of use

Details Rock bolt and method of use Rock bolt and method of use

E - Fixed Constructions

21

D

E21D 21/00 (2006.01) F16B 13/06 (2006.01) F16B 13/08 (2006.01)

Patent

CA 2449682

This invention relates to a rock bolt and to its method of use. There is disclosed a rock bolt comprising an elongated bar and an elongated drformable member, with means to reduce the distance between the respective ends of the deformable member so as to deform at least part of the member away from the bar. The means to reduce the distance between the respective ends of the deformable member may be located at the distal end of the rock bolt or the proximal end thereof. Though the term "rock bolt" is used, the bolt may be used as a ground anchor, or in other suitable applications, in which it is located in a hole drilled into earth as well as or instead of rock.

La présente invention concerne un boulon d'ancrage et son procédé d'utilisation. L'invention traite d'un boulon d'ancrage comprenant une barre allongée et un élément déformable allongé avec des moyens permettant de réduire la distance entre les extrémités correspondantes de l'élément déformable, de manière à déformer au moins une partie de l'élément pour l'éloigner de la barre. Les moyens de réduction de la distance entre les extrémités correspondantes de l'élément déformable peuvent être placés à l'extrémité distale du boulon d'ancrage ou de l'extrémité proximale de ce dernier. Si l'on utilise, certes, le terme de <= boulon d'ancrage >=, il s'agit d'un boulon qui peut être utilisé comme pièce d'ancrage au sol ou dans toutes les autres applications appropriées, dans lesquelles il est placé dans un trou foré dans la terre ou dans la roche.

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