Material and method for lining pipes

F - Mech Eng,Light,Heat,Weapons – 16 – L

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F16L 55/165 (2006.01) B29C 65/58 (2006.01)

Patent

CA 2262118

A material and method is provided for lining man-entry sized pipes and securing the lining to the pipe. A plurality of lining panels (10) are positioned along the interior surface of a pipe so as to form a plurality of adjacent wall portions extending through the pipe. The lining panels are each formed with a plurality of T-shaped flanges (20) extending perpendicular to and along said outer wall of the lining panel. A stiffening panel (200) is positioned between at least selected pairs of the T-shaped flanges. The hollow interiors of the stiffening panels are formed to receive and hold grout. The grout when cured provides strength and support for a second layer of grout injected into an annulus between the pipe's inner surface and an outer surface of the lining.

L'invention concerne un matériau et une méthode de garnissage de conduites à taille d'homme et de fixation du revêtement de garnissage à la conduite. On dispose plusieurs panneaux de garnissage (10) le long de la surface intérieure d'une conduite de manière à ce qu'ils forment plusieurs parties adjacentes d'une paroi qui s'étend à travers la conduite. Chaque panneau de garnissage possède plusieurs rebords en formes de T (20), placés parallèlement et perpendiculairement à la paroi extérieure du panneau de garnissage. Un panneau de rigidité (200) est placé entre au moins quelques paires choisies de rebords en forme de T. Les panneaux de rigidité, creux à l'intérieur, sont conçus pour recevoir et contenir du coulis. Le coulis, une fois durci, rend la structure plus résistance et sert de support à une deuxième couche de coulis, ledit coulis étant injecté dans l'espace annulaire entre la surface intérieure de la conduite et une surface extérieure du revêtement.

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