Welded Gabion
Welded gabion, a wire fabric container, uniformly partitioned, of variable size, interconnected with other similar containers, and filled with stone at the site of use, to form flexible, permeable, monolithic structures such as retaining walls, sea walls, channel linings, revetments, and weirs for erosion control.
Welded gabion are classified according to coating, as follows:
Style 1, consists of welded wire fabric made from wire which is zinc coated before being welded into fabric. Spiral binders, lacing wire, and stiffeners are produced from zinc coated wire.
Style 2, consists of welded wire fabric which is made from uncoated wire and the fabric is subsequently zinc coated after fabrication. Spiral binders, lacing wire, and stiffeners are produced from zinc coated wire.
Style 3, consists of welded wire fabric made from wire which is coated with zinc-5 % aluminum-mischmetal alloy (Zn-5Al-MM) before being welded into fabric. Spiral binders, lacing wire, and stiffeners are also produced from zinc-5 % aluminum-mischmetal alloy (Zn-5Al-MM) coated wire.
Welded Gabion
Welded gabion shall have a mesh opening of 3 by 3 in. [76 x 76 mm]. Mesh opening shall be considered to be center-to-center distance between two consecutive longitudinal or transverse wires. The permissible tolerance is ± 1⁄8 in.
[63.2 mm] maximum.
Typical mesh wire, spiral, stiffener group
3.00 mm, 3.00 mm, 3.00 mm
4.00 mm, 3.00 mm, 3.00 mm
5.00 mm, 3.00 mm, 3.00 mm
Minimum zinc coating weight of wire
3.00 mm ≥ 255 g/㎡
4.00 mm ≥ 275 g/㎡
5.00 mm ≥ 280 g/㎡
Mesh Opening 76 x 76 mm
Gabion shall be manufactured with all components mechanically connected at the production facility. All gabions shall be supplied in the collapsed form, either folded and bundled or rolled, for shipping.
Packing of Welded Gabion