Galfan coated Gabion Mesh

Gabion mesh  is a type of double twisted, hexagonal woven wire mesh. The wire used to manufacture the gabion baskets is fabricated from high quality tensile, heavily galvanized steel, which is also available with an extruded PVC coating for additional corrosion protection, when required by the application. The double twist of the woven wire mesh provides integrity, strength and continuity to the structure by adding a non-raveling effect that prevents any accidental damage from spreading.

    Metal Gabion-Netting is metallic wire mesh rock fall netting used to prevent rock and debris from falling on to road and railways, since the double-twist, hexagonal-woven mesh does not unravel when some wires break. This is achieved by joining together rolls of mesh fabric with lacing wire and using it as a blanket to cover slopes obstructing rock falls. Fractured stones are trapped and confined against the slope should isolated wires fatigue from prolonged stress. This solution can also help in establishing and protect infrastructure.

Additionally, this double-twisted hexagonal type of netting has the high mechanical resistance required to prevent the danger of sudden rock shock loads and dissipate rock fall energy created from loose fractured rock.

Advantages

1.Metal Gabion made of hexagonal double twisted wire mesh provide adequate strength to the structure to withstand forces generated by retained earth and flowing water.

2.The flexibility of the double twisted hexagonal mesh helps in withstanding differential settlement without fracturing the structure particularly when a structure is installed on unstable and uneven ground or in an area where scours from waves or current can undermine etc.

3.The permeable nature of the Metal Gabion eliminates buildup of hydrostatic pressure behind the retaining structure and uplifts caused by turbulent flows. Hence the thickness of the required structure is significantly reduced.

4.Metal Gabion structures are heavy monolithic gravity units able to withstand earth's thrust. Its efficiency increases instead of decreasing with age since further consolidation takes place as silt and soil collect on the voids and vegetation establishes itself.

5. Flexibility: Flexibility is an important benefit of any gabion structure. The double-twist hexagonal mesh construction permits it to tolerate differential settlement without fracture. This property is especially important when a structure is on unstable soil conditions or in areas where scour from wave action or currents can undermine the toe of the structure and cause structural settlement.

6. Durability
Gabions support plant growth which provides a live coating for the wire mesh and stones, adding to their durability. Generally, the wire mesh is needed for the first few years of the structure’s life; later the void between the stones is filled with soil, silt, and plant roots which act as a bonding agent for the stones.

Strength: Steel wire hexagonal mesh has strength and flexibility to withstand forces generated by water and earth masses, and the previous nature of the gabion allows it to absorb and dissipate much of that energy. This is evident on coast protection installations where gabion structures remain effective long after a massive rigid structure fails. Additionally, the double twisted hexagonal mesh won’t unravel if cut.

7. Permeability
Gabion walls are previous to water and stabilize slopes by the combined action of draining and retaining, precluding the development of hydrostatic pressure behind the gabion wall. Drainage is accomplished by gravity, as well as evaporation as the porous structure permits air circulation through it. As plant growth develops within the structure, the process of transpiration assists in removing moisture from the backfill – a much more efficient system than weep holes in standard masonry walls.

Gabion box is consist of rectangular units, fabricated from a double-twisted hexagonal mesh, filled with stones. In order to reinforce the structure, its edges with a wire having a thicker diameter than the mesh wire. Gabion boxes be divided into cells by diaphragms at every 1 meters.