Improving material density: By using a roller with a certain weight to slowly roll through the material layer, and using static pressure to achieve permanent residual deformation of the pressed layer, the density of the material can be increased.
Reduce air and moisture: During the compaction process, some air can be expelled from the soil, increasing its compactness, shear strength, and reducing its compressibility, improving its impermeability, and increasing the uniformity of the geotechnical structure