Flexible rock bolt or reinforcing rod

Details Flexible rock bolt or reinforcing rod Flexible rock bolt or reinforcing rod

F - Mech Eng,Light,Heat,Weapons

16

B

85/23

F16B 35/04 (2006.01) E21D 20/02 (2006.01) E21D 21/00 (2006.01) F16B 13/00 (2006.01) F16B 31/04 (2006.01) F16B 35/06 (2006.01)

Patent

CA 1042242

ABSTRACT OF THE DISCLOSURE A flexible rock bolt for use in anchoring mine structures to ground formations and in supporting such structures which consists of a rock bolt helically coiled into a spring shape having relatively large pitch and a spring index of at least two which allows the rock bolt to elongate upon application of tension and torsion loading and allows the rock bolt to contract under compression.

242942

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