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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.
Table 1 mesh characteristics
Characteristics | Gabion | |
Metallic coated | PVC coated | |
Mesh type opening | 80x100mm 60X80mm 100X120mm 120X150mm | 80x100mm 60X80mm 100X120mm 120X150mm |
Mesh wire | 2.4/2.7/3.0mm | 2.4/2.7mm |
Selvege 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 |
Table 2 typical gabions size (m)
Length M | Width M | Height M | No. Of Cells | Volume M3 |
Meter | Meter | Meter | Each | Cu.meter |
2.0 | 1.0 | 1.0 | 2.0 | 2.0 |
3.0 | 1.0 | 1.0 | 3.0 | 3.0 |
4.0 | 1.0 | 1.0 | 4.0 | 4.0 |
2.0 | 1.0 | 0.5 | 2.0 | 1.0 |
3.0 | 1.0 | 0.5 | 3.0 | 1.5 |
4.0 | 1.0 | 0.5 | 4.0 | 2.0 |
2.0 | 1.0 | 0.3 | 2.0 | 0.6 |
3.0 | 1.0 | 0.3 | 3.0 | 0.9 |
4.0 | 1.0 | 0.3 | 4.0 | 1.2 |
Table 3 typical gabions size (feet)
Length Feet | Width Feet | Height Feet | No. Of Cells | Volume Yd3 |
Feet | Feet | Feet | Each | Cu.Yard |
6.0 | 3.0 | 3.0 | 2.0 | 2.0 |
9.0 | 3.0 | 3.0 | 3.0 | 3.0 |
12.0 | 3.0 | 3.0 | 4.0 | 4.0 |
6.0 | 3.0 | 1.5 | 2.0 | 1.0 |
9.0 | 3.0 | 1.5 | 3.0 | 1.5 |
9.0 | 3.0 | 1.5 | 3.0 | 1.5 |
12.0 | 3.0 | 1.3 | 4.0 | 2.0 |
6.0 | 3.0 | 1.0 | 2.0 | 0.67 |
12.0 | 3.0 | 1.0 | 4.0 | 1.33 |
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