Geotextile construction case

For the reinforcement project of the expressway subgrade, 200g/㎡ polyester filament geotextile is selected. Before construction, the crushed stones and weeds on the surface of the subgrade are cleared first. Then, the geotextile is manually spread to ensure that the surface is flat and free of distortion. The lap width between the widths is no less than 30cm, and it is fixed by sewing process. After completion, settlement observations were conducted, and the stability of the roadbed was significantly improved, successfully passing the quality inspection before opening to traffic.