Function: 1. Enhance roadbed and effectively diffuse its load to improve its stability and bearing capacity and increase service life; 2. Can bear more alternate load; 3. Prevent roadbed distortion and crack caused by the loss of roadbed materials; 4. Increase the self-supporting property of fill behind retaining wall, decrease the earth pressure of retaining wall, save cost, increase service life and reduce maintenance expense; 5. Combine anchor sprouting concrete construction method to give side slope maintenance, which not only saves investment by 30%-50% but also reduces erection time by one time or above. 6. To increase geogrid in the roadbed and surface of highways can reduce flexure, track and put off the flawing appearance by 3-9 folds and reduce the thickness of structural layer by 36% 7. It is applicable to any kind of soil, not necessary to draw material from other place, saving time and labor; 8. Simple and rapid construction will greatly reduce construction cost. HDPE uniaxial geogrid: Item TGDG25TGDG35TGDG50TGDG65TGDG80TGDG90TGDG110TGDG130TGDG150Width m1.00+0.2 , 2.00-0.2Tensile strength KN/≥253550658090110130150Elongation %≤12Tensile strength at 2% strain KN/m≥691016.12323.7303945Tensile strength at 5% strainKN/m≥12182530.94445.2607792PP uniaxial geogrid: Item TGDG25TGDG35TGDG50TGDG80TGDG110Width m1.00+0.2, 2.00-0.2Tensile strength KN/m≥25355080110Elongation %≤10Tensile strength at 2% KN/m≥710122032Tensile strength at 5% KN/m≥1420284864