Two-way stretch plastic geogrid is polymer by extrusion, into a plate, punching process vertical and horizontal stretching from. Commitment and diffusion of the ideal chain system of the material in the vertical and horizontal great tensile strength, such a structure in the soil also provide a more effective force, adapted to carry a large permanent in foundation reinforcement. Commitment and diffusion characteristics of the ideal chain systems two-way plastic geogrid in the longitudinal and horizontal great tensile strength, such a structure in the soil can provide a more effective force, adapted to carry a large permanent The foundation reinforcement.