Self drilling rock bolt

Details Self drilling rock bolt Self drilling rock bolt

E - Fixed Constructions

21

D

E21D 21/00 (2006.01)

Patent

CA 2638725

The present invention relates to a self drilling rock bolt which may be used in mining applications. Self drilling rock bolts are typically are formed by rebars having an axially extending central passageway for water passage and post grouting. Costs of such hollow steel rebars is quite high. In the present invention, a rock bolt is formed from a hollow tubular member which may be steel pipe, and a reinforcing arrangement comprising prestressed concrete type steel strand wound around the outside of the hollow tubular member.

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