Rock stabilizer

Details Rock stabilizer Rock stabilizer

E - Fixed Constructions

21

D

85/31

E21D 21/00 (2006.01)

Patent

CA 2000361

- 14 - ABSTRACT An improved rock bolt for insertion into a bore in the roof or side wall of an underground opening so as to stabilize the roof or wall of the opening, the rock bolt comprising a generally hollow elongate body having a side wall wherein the side wall has a flute means formed from a pair of inwardly disposed wall portions interconnected at their respective inboard ends to form a hinge means which is responsive to forces applied to and along the side wall by the bore so that the rock bolt may be deformed in the bore to accomodate stresses and strains placed upon the bolt during use without substantially weakening the strength of the bolt held in the bore.

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