System and method for rehabilitating a manhole, and manhole reha

Details System and method for rehabilitating a manhole, and manhole reha System and method for rehabilitating a manhole, and manhole reha

1992-06-05

1993-11-30

Taylor, Dennis L.

Hydraulic and earth engineering

Miscellaneous

156287, 156294, 138 97, 264516, 428225, 428232, 405133, 405155, 4051501, E02D 2912

Patent

active

052659810

ABSTRACT:
A liner assembly for a manhole comprises a multiple ply generally cylindrical tube. The outermost ply is adapted for being impregnated with material for rigidifying and bonding the outermost ply to a manhole. The innermost ply is adapted for being impregnated with a material for rigidifying the innermost ply so that the manhole becomes structurally reinforced. An impermeable ply is disposed between the innermost and outermost plies. The outermost, innermost, and impermeable plies are secured together so that the plies are maintained facially oriented. Each of the plies is cut along a first end of the tube for providing a fluid flow path when the assembly is installed in the manhole and an opposite end of the tube is fully opened.

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