Geogrid very broad application in hydraulic engineering, civil works and road both have a large number of applications. Laiwu of Shandong geotextile material Ltd., specializing in the production of road with geogrid. Hotline geogrid very broad application in hydraulic engineering, civil works and road both have a large number of applications. Highways focused on the following areas: 1, is arranged in the asphalt concrete surface layer below, and decreasing crack reflection, improve resistance to rutting and increasing fatigue resistance. 2, used in the middle of granular base to prevent excessive permanent deformation and fatigue damage. 3. The roadbed earthwork construction in soft foundation treatment, to ensure that the carrying capacity of the roadbed, reduce the amount of earthwork. Geogrid material selection: Quality performance difference geosynthetics larger and have different mechanical index. Depending on the engineering usage, you should choose a different geosynthetics. In engineering design and construction, should be based on the specific circumstances and characteristics of the original pavement engineering requirements, select material meets the mechanical properties of the grid. When analyzing geogrid located at the grassroots, the grassroots, the surface layer inferior position, in the car loads, pavement deflection, changes in the various layers of bottom bending tensile stress and cracks in the road handling of the old road widening parts The pavement structure theoretical analysis to determine the reasonable horizon and the role of geogrid.