Geogrid construction technology

1, first of all, according to the actual situation needs, first place the subgrade slope line, the underlying soil is fully dried, and then remove the debris, as far as possible to make the soil clean and smooth, and then use the roller to fully compacted the underlying soil, if there is an uneven place, it should be levelled.

2, according to the actual needs, choose to lay medium sand or coarse sand on the basement soil, after the initial human leveling, need to use a roller for full compaction. Each time it is laid, the roller needs to be fully rolled and levelled once.

3. Lay the geogrid above the sand and gravel, to ensure that the grille is smooth and not curly, and to fix the grille on the ground with U-shaped nails along the roadbed after laying.

4. After laying the first layer of grille, it is necessary to fill the second layer of sand and stone on it. After laying the sand and stone, it should be fully smooth, and measured with a level to ensure that the first layer is not squeezed and deformed, and to detect whether the thickness of the second layer of sand and stone is uniform. After the artificial roughly flat, the roller should be fully rolled on both sides.

5, laying the second layer of grille steps with the first layer, it should be noted that to ensure the flatness of the grille. After adding another layer of sand and gravel, the strengthening step of the base layer is completed.

6. After the above treatment is completed, it is necessary to lay geogrid on both sides of the slope, repair the slope in time, and protect the slope foot with dry masonry.