COMPOSITE UNDERGROUND PIPE STRUCTURE

摘要

A composite pipe structure including a pair of structural polymer layers disposed on opposed sides of a central metal layer. In a preferred embodiment, the thickness of the composite structure is comprised of approximately 40%-60% of the metal layer, with the remaining balance comprised of the pair of polymer layers.

主权项

1. A composite pipe comprising:
a wall formed of a composite sheet having:
a metal layer having a first surface and an opposing second surface;a first polymer layer extending over the first surface and defining a first external surface; anda second polymer layer extending over the second surface and defining a second external surface, the wall having a wall thickness equal to the distance between the first and second external surfaces, the first and second polymer layers comprising at least 30% of the wall thickness; the wall being disposed about a pipe axis to define a pipe opening extending longitudinally along the pipe.