PERMAFROST ROAD FILL Russian patent published in 2021 - IPC E02D17/18 

FIELD: construction.

SUBSTANCE: invention relates to construction of road embankments on permafrost in areas with the presence of snow transfer. The road embankment on permafrost contains the body of the embankment and a system for cooling the soil, while the body of the embankment is located on the natural surface of the soil and is bounded from above by the main site, and on the sides by slopes, and the main site contains the passage zone in the center, and on the sides - the shoulder. The system for cooling the soil is made in the form of prisms and a protective layer of soil above them. The prisms have the form of a horizontal rectangle in the cross-sectional plane of the embankment and consist of gabions filled with sorted stone. The body of the embankment is made of upper and lower tiers, while the lower tier has the form of a truncated pyramid, and the upper tier is located between the main platform and the lower tier and contains two prisms located along the edges of the upper base of the lower tier with a distance between them equal to the width of the passage, and the upper surface of the protective layer of soil above each prism coincides with the upper surface of the upper tier and is formed by the shoulder of the main platform and a plane passing between the edge of the main platform and the outer edge of the prism.

EFFECT: ensuring the stabilization of the temperature regime of permafrost soils at the base of the embankment, reducing the volume required for filling the soil, and reducing the total cost of the embankment.

3 cl, 3 dwg