Definition
The steel wire grid is a new type of reinforced grid made by welding multiple horizontal and vertical high-strength steel wires into square holes by resistance welding, and then coating the welded steel wires with plastic.
Features of this section
It has the characteristics of high bidirectional strength and high rigidity. It is an ideal material to replace the composite welding geogrid and weaving geogrid.
1.This is because the steel wire grid is determined by the following factors: 1. The strength of the steel wire grid joints (tensile, shear, tear, torsion) is high, and the force transmission performance of the grid longitudinal and horizontal ribs It is better to be able to transmit the force received by the transverse ribs to the longitudinal ribs through the joints and vice versa. Therefore, it is required that the joints have good integrity, the joint strength should be relatively close to the strength of the ribs (do not break at the joints during tension), or the strength difference between the two should be small to match, which is the most reasonable and economical. Otherwise, the strength of the contact is much lower than the strength of the ribs, and the tensile strength of the high-strength ribs cannot be exerted safely. The structural consequence is the waste of the "large horse-drawn carriage" style.
2. The total area of the grid ribs and ribs of the steel wire grid should be as small as possible in the area of its openings, so as to ensure that the mechanical engagement and interlocking effect is relatively large. In other words, it is necessary to make the mesh mesh as much as possible with the soil body in order to give full play to its bite. However, the mesh size should not be too large, otherwise the stiffness of the ribs will become smaller, and the bite force will be reduced.
3. The ribs and ribs of the grille should be perpendicular to each other in order to transmit the load more effectively. If the two are not perpendicular, the load transfer effect will be reduced, and the reinforcement effect will be worse. This is different from false grids (such as woven, composite welded). The nodes of the false grid are woven or composite welded, with poor integrity and poor vertical and horizontal force transmission performance.