Using steel plastic geogrid as the separation layer between soil foundation and gravel subgrade

Steel plastic geogrids are handy for dealing with the frozen soil environment in cold regions.

When building roads on frozen land in the cold zone, the freezing and thawing parts of the soil layer can bring many hazards to the highway. When the water in the soil foundation freezes, it will increase the volume of the soil, causing the ground frozen soil layer to expand upward, causing frost heave.

Using steel plastic geogrids as the separation layer between the soil foundation and the crushed stone subgrade can prevent silt from entering the road and overturning onto the pavement. For example, when some highways thaw, the silt often falls off the roof. When placing needle punched or anti sticking steel plastic geogrids between the gravel subgrade, it can prevent silt from forming gullies. It is important to build a good umbrella weather road in the freezing zone, often without laying a pavement layer, which requires a thick crushed stone subgrade. However, in permafrost regions, there is often a lack of gravel and sand. In order to reduce investment costs, geotextile can be used to cover the earth city to build a roadbed.