Shaped element reinforcing sheet, separating and draining large structures such as road embankments

摘要

A shaped element reinforcing sheet, separating and draining large structures such as road embankments, comprising a body in sheet form (1) having a similar to a lattice with main wires (2) and transverse wires configuration (3 ) that intersect at nodes (4) and are stretched along two substantially perpendicular directions in which said wires (2, 3) are biaxially oriented with a stretch ratio in said two substantially mutually perpendicular directions which is between 2.8 and 5.5, said main wires (2), ie, in a direction of extruding a parison that provides said sheet-shaped body, having a substantially quadrangular cross section and a thickness, in a direction which is at right angles to a plane of arrangement of said sheet-shaped body (1), which is equal to at least three times a thickness of said transverse wires (3) in said nodes having said substantially sharp main wires protruding edge (10, 11) at least at an upper rim of the quadrangular cross section, along said main wires (2) comprising substantially sharp lower edges ( 11), and having said main wires (2), in areas that are remote from said nodes (4), a thickness in a direction at right angles to a plane of arrangement of said body in sheet form is at least twice the thickness of said transverse wires (3).