The gabion gabion is a hexagonal metal mesh woven by a twisted twist process. The retaining wall made of blocks or pebbles filled in the gabion gabion has strong anti-scour ability, self-permeability, strong integrity, and resistance to wind and waves. strong sexual characteristics. Traditional river bank protection or slope protection such as dry masonry or concrete prefabricated blocks used in river treatment projects in the past blocked the circulation of natural ecosystems in the river because of impermeability, and were not suitable for the concept of ecological river management. The gabion gabion has a unique porous structure that is conducive to biological habitat, and the zinc-aluminum alloy steel wire material used greatly improves the rust-proof life of the gabion gabion, so the gabion gabion is more and more widely used in ecological river construction.

Gabion gabion raw material standard requirements:

1. The surface of the steel wire is hot-dip galvanized, and the amount of galvanizing is not less than 245g/m2;

2. Galvanized + plastic coated PVC process, the thickness of plastic coating is not less than 0.5mm;

3. Adhesion of the galvanized layer: When the steel wire is wound around a mandrel with a diameter of 4 times the steel wire for 6 times, rub the steel wire with your fingers, it will not peel or crack;

4. Plastic coating index: gray, specific gravity 1.35～1.4Kg/dm3, hardness 90～100 (Shore hardness type A);

5. The tensile strength is not less than 20.6Mpa; the elongation at break is not less than 200%, the weight loss: the temperature is 105℃, after 24 hours, the weight loss is less than 5%; the residual ash: less than 2%.

6. The tensile strength of the steel wire should be between 350 and 500Mpa, and the elongation should not be less than 10%;

7. The elongation rate of steel wire before weaving is ≥12%, and after weaving is ≥7%.     

Gabion gabion installation:

1. Before installation, first lay out the line to determine the outer edge of the gabion gabion.

2. Place the assembled gabion gabions tightly and neatly in the proper position, face to face and back to back, so as to facilitate stone filling, cover binding and save steel wire.

3. Twist the edges of the adjacent gabion gabions with long steel wires, and bind them with about 20 cm long steel wires at intervals of 10-15 cm.

4. The bottom edge of the gabion gabion on the second layer and above should be tied together with the lower layer, the binding requirements are the same as above, and the extended part of the edge steel wire should be tightened to the adjacent edge.

5. The filling stone must be evenly put into the boxes of the same layer at the same time, and the single grid box cannot be filled at one time.

6. During the filling construction, the feeding thickness of each layer should be controlled to be about 1/3 of the height of the cage. Generally, it is advisable to divide the feeding into three to four layers for a one-meter-high cage.

7. Considering the settlement of the filling material, the filling stone on the top surface should be appropriately 2-3 cm higher than the gabion cage, and must be dense, and the gap should be filled with appropriate small gravel. To increase the bulk density of the gabion.

8. For the filled stones exposed above the ground, the surface should be placed manually (by means of dry masonry) or mechanically leveled, and the stones should overlap each other stably with the plane facing outward.

9. After each layer of gabion gabion stone addition is completed, a point should be selected to control the measurement elevation.