Shaft plugging system

E - Fixed Constructions – 21 – D

Patent

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Details

E21D 7/00 (2006.01) E21D 1/00 (2006.01) E21F 15/00 (2006.01) E21F 15/08 (2006.01)

Patent

CA 2612559

A shaft plug (11) for a mine shaft (10), the shaft plug (11) comprising an inflatable bladder adapted to be inflated by pressurised gas, the bladder being adapted to be positioned within a shaft (10) prior to inflation and to be inflated to contact the walls of the shaft (10) to thereby seal the shaft (10) and provide support to the shaft wall. A plurality of shaft plugs (11) are adapted to by linked together in a manner to provide gas communication between the shaft plugs (11) to provide a shaft plug (41) to enable the shaft to be substantially filled by the shaft plug (41) when inflated. Also defined is a method of sealing a mine shaft and supporting the shaft wall by use of a shaft plug (11) or shaft plug (41) described within.

Obturateur de puits (11) pour puits de mine (10). L~obturateur de puits (11) se compose d~une vessie gonflable par gaz sous pression, qui peut être mise en place dans un puits (10) avant d~être gonflée, puis être gonflée, afin d'entrer en contact avec les parois du puits (10) pour fermer ce dernier (10) de manière hermétique et soutenir les parois du puits. Une pluralité d~obturateurs de puits (11) peuvent être reliés les uns aux autres, de manière à permettre une communication gazeuse entre les obturateurs de puits (11). On obtient ainsi une chaîne d~obturateurs (41) qui permet de remplir le puits lors du gonflage. L~invention concerne également une méthode de fermeture hermétique d~un puits de mine et de soutien des parois du puits par le biais d~un obturateur de puits (11) ou d~une chaîne d~obturateurs (41), comme indiqué ci-dessus.

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