Rock bolt assembly

E - Fixed Constructions – 21 – D

Patent

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Details

E21D 20/00 (2006.01) E21D 21/00 (2006.01)

Patent

CA 2712293

A rock bolt assembly comprising a rock bolt having an elongate shaft extending between opposite distal and proximal ends of the rock bolt, and a sheath disposed on the shaft at or adjacent the distal end of the bolt, the sheath having a body that extends about the shaft, the body having a longitudinal axis, opposite leading end and trailing end spaced apart along the axis, the body incorporating a cavity in which the shaft is disposed, the cavity extending from the trailing end of the body.

L'invention concerne un ensemble boulon d'ancrage qui comprend un boulon d'ancrage comportant une tige allongée se déployant entre une extrémité distale et une extrémité proximale opposées du boulon d'ancrage, et une gaine placée sur la tige, à l'extrémité distale du boulon ou de façon adjacente à celle-ci. La gaine comporte un corps qui se déploie autour de la tige; le corps comporte un axe longitudinal, une extrémité avant et une extrémité arrière opposées, qui sont espacées sur l'axe; ledit corps comprend une cavité dans laquelle la tige est placée, cette cavité se déployant depuis l'extrémité arrière du corps.

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