GABIONS consist of rectangular units, fabricated from a double-twisted hexagonal mesh. Filled with stones, gabions become large, flexible and permeable elements from which a broad range of structures may be built. Gabions and mattresses are widely used for hydraulic and geo- technical control such as retaining walls, riverbank protections, weirs, channel linings etc.
GABIONS are divided into cells with diaphragms (usually spaced at 1 meter or 3' intervals), whose function is to reinforce the structure. The mesh (except for the diaphragms) is reinforced on all edges with wires of a larger diameter to strengthen the gabions and facilitate the assembly and installation.
TOLERANCES:
On the hexagonal, double-twisted wire mesh opening shall not exceed ±10% on the nominal dimension
Table 1 mesh characteristics
Characteristics | Gabion |
Metallic coated | PVC coated |
Mesh type opening | 8 by 10 83 by 114 mm(3.25 by 4.5 in.) | 8 by 10 83 by 114 mm(3.25 by 4.5 in.) |
Mesh wire | 2.4/2.7/3.0mm | 2.4/2.7mm |
Selvage wire | 3.0/3.4/3.8mm | 3.0/3.4mm |
Lacing wire | 2.2mm | 2.2mm |
Fasteners | 3.0mm | 3.0mm |
Stiffeners( using lacing wire ) | 2.2mm | 2.2mm |
Preformed | 3.8mm | 3.4mm |
PVC coating thickness: Nominal | N/A | 0.5mm |
Minimum | N/A | 0.38mm |
Packing:
For easy handling and shipping, the gabions are supplied folded flat. A color stripe applied on the side of each folded gabion identifies the size.
Loading:
Usually, gabions will be loaded into 40ft containers to save cost.