Subgrade fill geogrid is a material used to strengthen the soil and prevent subgrade settlement. It is made of high-strength materials such as high-density polyethylene or polypropylene, which are formed by hot melting, punching, welding, and other processes to form a grid structure. This grid structure creates a high-strength reinforcement and fixation in the soil, preventing subgrade settlement and soil erosion.
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The subgrade filling geogrid has the characteristics of lightweight, easy installation, economy and practicality. It can play a good role in reinforcing the roadbed filling and prevent cracking and potholes in the road surface. In addition, it can also enhance the shear resistance of the roadbed, improve the bearing capacity of the pavement, and prolong the service life of the pavement.
When using the subgrade to fill the geogrid, the necessary trimming and leveling of the subgrade should be carried out first to ensure that the surface of the subgrade is flat and smooth. The geogrid is then laid on the surface of the roadbed and fixed with special nails or clips. Finally, the roadbed is filled on the geogrid and compacted evenly.
In a word, subgrade filling geogrid is an effective subgrade reinforcement material, which can greatly improve the bearing capacity and service life of the pavement.