Patent 8158272 was granted and assigned to ArcelorMittal on April, 2012 by the United States Patent and Trademark Office.
A steel sheet pile in double-T form includes a web and two flanges, in which each flange has an inner side facing the web, an outer side facing away from the web, and two longitudinal edges, and also coupling means for a connection profile along at least one longitudinal edge of at least one flange. In a first embodiment, the coupling means are formed by a groove which extends in the outer side of at least one flange along at least one longitudinal edge.