These people aren’t using cement or bricks to build a wall. Instead, they are making a wall out of wire mesh and then filling it with stones of different sizes. Why are they doing this?
Actually, this is a gabion wall, which is much stronger than a wall made of bricks. When a riverbank is subjected to long-term erosion, it is very likely to collapse, and a large amount of river water will overflow the dam and flood the crops. Therefore, it needs to be reinforced a second time. So they chose the gabion wall shown at the beginning of the video.
It is worth mentioning that using gabion walls is not only low-cost but also much easier to build than concrete. It is worth noting that the wire used to build the wall is not ordinary wire. It is mainly made of highly wear-resistant low-carbon high-zinc material. In addition to being corrosion-resistant, it also has anti-aging and other characteristics. It is also very good in terms of rust prevention. You know, it is subjected to the impact of the river every day, so it also needs to have extremely high resistance to pressure. Compared with concrete dams, gabion walls have a much longer service life.
Ordinary people will first make wire mesh cages, and they must ensure that each cage has small squares. This is to distribute the external pressure evenly. Then, they use a spiral winding method to combine them together. The most important step is to embed additional steel wires for a second reinforcement. This can effectively prevent the deformation of the mesh frame, but people need to manually arrange the stones when filling the stones.
