Long hole chemical grout injector system

E - Fixed Constructions – 02 – D

Patent

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Details

E02D 3/12 (2006.01) B01F 3/08 (2006.01) E04G 23/02 (2006.01) E21D 9/00 (2006.01)

Patent

CA 2104844

A system is described to separately furnish to an injector apparatus that is placed within a pipe two or more grout components. The injector apparatus is secured in position in the pipe by components of the injector apparatus that are urged into a position of cooperation with a modified section of pipe as a consequence of the increased hydraulic pressure that occurs within the injector apparatus during the pumping of one of the grout components thereinto. The two or more grout components after separately being furnished to the injector apparatus are first combined together by elements of the system and are then thoroughly mixed (reacted) together by other elements of the system to form a grout that is discharged from the system following their mixing together and prior to setting of the grout in ideal proximity with respect to a crack or crevice requiring grout application. All components of the system are recovered for subsequent use elsewhere.

La présente invention se rapporte à un système permettant d'alimenter un dispositif d'injection placé à l'intérieur d'un tuyau en éléments distincts (au nombre de deux et plus) entrant dans une composition de coulis de maçonnerie. Le dispositif d'injection est maintenu en place à l'intérieur du tuyau par un mécanisme d'assujettissement en coopération avec une section modifiée du tuyau consécutivement à l'augmentation de la pression hydraulique à l'intérieur du dispositif d'injection durant le pompage et l'admission de l'un des éléments du coulis de maçonnerie dans l'injecteur. Après leur admission à l'intérieur du dispositif d'injection, les deux éléments (ou plus) entrant dans la composition du coulis de maçonnerie, sont d'abord combinés mécaniquement et incorporés (réaction) par d'autres organes du système jusqu'à l'obtention d'un coulis qui est alors déchargé, après agitation et avant la prise, à un endroit idéal par rapport à l'emplacement de la fissure ou de la crevasse à remplir. Tous les éléments du système sont réutilisables.

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