Patent ID: 7325774

Claim:
A spiral double-twisted structure for a gabion unit of a gabion mesh, comprising: an n-th upper steel wire (A n ) and an n-th lower steel wire (B n ) which are paired with each other and rotated in one direction to form a front spiral twisted structure having a plurality of twists, a k-th transverse steel wire (C k ) which is transversely inserted between the n-th upper steel wire (A n ) and the n-th lower steel wire (B n ) of the front spiral twisted structure, and the n-th upper steel wire (A n ) and the n-th lower steel wire (B n ) which are rotated in a direction opposite to the one direction after passing over the k-th transverse steel wire (C k ) serving as a centerline, in order to form a rear spiral twisted structure having a plurality of twists, where k represents the relative positional relationship among transverse steel wires and is a positive integer including 0, and n represents the relative positional relationship among the upper and lower steel wires and is a positive integer including 0.