Corrugated metal pipe

摘要

A metal pipe of single piece construction including a wall formed of a single corrugated metal sheet. The sheet has opposing first and second edges extending longitudinally along the sheet. The wall includes a seam that is formed by abutting portions of the first and second edges. The seam extends helically about and along a length of the wall. The sheet has an interior wall side and an opposing exterior wall side. The interior wall side defines an interior wall surface of the wall. The exterior wall side defines an exterior wall surface of the wall. The sheet has a sinusoidal cross-sectional profile defining 3 corrugation peaks at the interior wall surface and 3 corrugation peaks at the exterior wall surface. The sheet has a flattened sheet width of approximately 27 inches and a finished sheet width of approximately 21 inches. The wall defines a pipe diameter of at least 96 inches.

主权项

1. A metal pipe comprising:
a wall formed of a corrugated metal sheet, the sheet having opposing first and second edge regions extending longitudinally along the sheet, the wall including a seam formed by abutting portions of the first and second edge regions, the seam extending helically about and along a length of the wall, the sheet having an interior wall surface and an opposing exterior wall surface, the sheet having a cross-sectional profile defining 3 corrugation peaks at the interior wall surface and 3 corrugation peaks at the exterior wall surface, the sheet having a flattened sheet width of approximately 27 inches and a finished sheet width of approximately 21 inches.