How long can the gabion cage be used in the river

The gabion cage used in river management is made of steel wire mechanically hinged into a net, and then assembled by workers into mesh boxes, mesh mats, hanging nets, etc. that meet the requirements. Blocks of stone or other fillers are added to the gabion cage to form an overall effect of good stability and anti-brushing. In addition, the steel wire used in the gabion cage for river management is usually low-carbon galvanized steel wire or aluminum-zinc rare earth alloy coated steel wire, which has the characteristics of high strength, corrosion resistance and wear resistance. The gabion cage mesh material adopts hot-dip galvanizing process to make the surface coating more stable, effectively reduce the oxidation of steel wire, and the plastic-coated steel wire can effectively increase the service life. For permanent water conservancy projects, the service life of the material is required to be more than 30 years. It is necessary to increase the coating adhesion of the raw materials, or select tested corrosion-resistant raw materials, and add a resin film coating on the surface of the steel wire.

Gabion cages are also called bin cages. Due to the characteristics of their production, they form a structure with good flexibility, strong scouring resistance, and water permeability. The gaps between the fillers in the cage can be crushed on the crest of the wind and waves, reducing the impact of the wave pressure; when the crest drops, the gaps between the cages destroy the vacuum suction of the wind and waves, reducing the damage to the protection project. In addition, when the wind and wave force acts, the overall structure can be fine-tuned by itself to prevent the wind and waves from affecting the cracking of the wall.

Advantages of Gabion cages in river channels

1. The flexible structure of the river management cage can adapt to the changes in the slope without being damaged, and has better safety and stability than the rigid structure; 2. The river management cage has a strong anti-scouring ability and can withstand the maximum water flow speed of 6m/s; 3. The river management gabion cage structure is inherently permeable and has a strong tolerance for the natural filtration of groundwater. The suspended matter and silt in the water are precipitated in the stone filling cracks, which is conducive to the growth of natural plants and gradually restores the original ecological environment.

How long can a gabion cage be used in a river?
The raw material for making a gabion cage is metal wire, and the common ones are galvanized steel wire, galvanized steel wire, plastic-coated steel wire, etc. The service life of gabions woven with different steel wires is different. The gabion cage woven with galvanized steel wire is called a galvanized gabion cage, and its service life is 3-5 years; the gabion cage woven with galvanized steel wire is called a galvanized gabion cage, and its service life can reach 30 years; the gabion cage woven with plastic-coated steel wire is called a plastic-coated gabion cage, and its service life can be increased by about 10 years on the original basis.