E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
E21D 20/02 (2006.01) E21D 21/00 (2006.01)
Patent
CA 2409071
A method for installing a roof bolt in a mine, which method comprises: (i) drilling a hole in the roof of a mine; (ii) inserting a resin cartridge having a skin into the hole; (iii) inserting a bolt into the hole and which comprises employing in the hole a tool having one or more sharp elements and wherein the insertion of the bolt causes the tool to puncture the cartridge and prevent the skin from expanding against the wall of the hole.
La présente invention concerne un procédé permettant d'installer un boulon d'ancrage dans une mine, lequel procédé consiste : (i) à forer un trou dans le toit d'une mine ; (ii) à insérer une cartouche de résine munie d'une peau dans le trou ; (iii) à insérer un boulon dans le trou, et à utiliser dans le trou un outil comportant un ou plusieurs éléments aiguisés, l'insertion du boulon entraînant la perforation de la cartouche par le boulon et empêchant la peau de venir s'étendre contre la paroi du trou.
Fetherstonhaugh & Co.
Fosroc Mining International Limited
LandOfFree
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