Plastic geogrid is divided into one-way tensile plastic geogrid and two-way tensile plastic geogrid. The engineering techniques of these two geogrids are as follows:

A. Two way tensile plastic geogrid engineering skills: excavate the foundation bed, set sand soil and stone cushion (the height difference is not less than 10cm), roll it into a platform, pave the grid, the longitudinal direction should be consistent with the main stress direction, the longitudinal lap is 1-20cm, the cross section is 10cm, the lap is bound with plastic tape, and on the paved grid, U-shape is fixed on the ground every 1.5cm-2cm, paved soil The geogrid should be filled quickly, and the number of layers of geogrid is the technical requirement.

b. One way tensile plastic geogrid engineering skills:

When it is used for foundation and ground, the engineering skill is the same as the two-way geogrid.

When it is used for reinforced earth retaining wall, the engineering skills are as follows:

1. Set the foundation and carry out the project according to the designed exterior wall system. When the prefabricated reinforced cement panel is selected, it is generally supported on the prefabricated cement foundation with a thickness of 12-15cm. The width of one-way geogrid shall not be less than 30cm, the thickness shall not be more than 20cm, and the buried depth shall not be more than 60 to prevent the Subgrade Frost Heaving.

2. The wall foundation shall be leveled, excavated and leveled according to the design requirements. The soft soil needs to be compacted or replaced. When it is compacted to the required density, it should slightly exceed the range of external wall:

3. The main strength direction of the reinforcement shall be perpendicular to the external wall and fixed with pins;

4. During the external wall engineering, the external wall shall be wrapped with Geogrid to prevent the earth leakage.