1. Treatment of half-filled and half-dug roadbed

When building an embankment on a slope with a natural slope steeper than 1:5, steps should be dug at the base of the embankment, and the width of the steps should not be less than 1M. When the road is built in stages or rebuilt and widened, the junction of the old and new subgrade fill slopes should dig steps, the width of steps on high-grade highways is generally 2M. Geocells are laid on the level of each step, and the geocell’s own facade side-limited reinforcement effect is used to better solve the problem of uneven subsidence.

2. Subgrade in windy and sandy areas

The roadbed in windy sand area should be mainly low embankment, and the filling height is generally not less than 0.3M. Due to the professional requirements of low roadbed and heavy load in roadbed construction in windy sandy area, the use of geocells can play a lateral role in loose filling. ensures that the subgrade has high rigidity and strength within the limited height to withstand the load stress of large vehicles.

3. Reinforcement and filling of abutment back subgrade

The use of geocells can better achieve the purpose of abutment back reinforcement. The geocells and fillers can generate sufficient friction to effectively reduce the uneven settlement between the subgrade and the structure, and finally effectively alleviate the early impact damage of the "abutment jump" disease on the bridge deck.

4. Subgrade in permafrost areas

In the construction of filled subgrades in permafrost areas, the minimum filling height should be reached to prevent muddying or lowering of the upper limit of the frozen layer, resulting in excessive settlement of the embankment. The unique façade reinforcement effect of geocells and the overall confinement of effective implementation can ensure the minimum filling height in some special areas to the greatest extent, and make the filling have high-quality strength and rigidity.

5. Loess subsidence treatment

For highways and first-class highways passing through collapsible loess and loess sections with better compressibility, or when the allowable bearing capacity of the foundation of the high embankment is lower than the combined load of vehicles and the pressure of the embankment's own weight, the subgrade should also be adjusted according to the bearing capacity requirements. At this time, the superiority of the geocell is undoubtedly revealed.

6. Saline soil, expansive soil

Highways and first-class roads built with saline soil and expansive soil, road shoulders and slopes are all reinforced. The facade reinforcement effect of the cell is the most excellent of all reinforcement materials, and it has excellent corrosion resistance. It can fully meet the requirements of building high roads in saline soil and expansive soil.