CULVERT WITH A CELLULAR STRUCTURE WITH A MINIMUM SURFACE Russian patent published in 2021 - IPC E01F5/00 E01C3/06 

FIELD: road building.

SUBSTANCE: invention relates to the field of road building and can be used in building new roads and railways, as well as in reconstruction of the existing subgrade for the purpose of installation of drainage embankments on periodic and permanent water courses with relatively low water consumption. The culvert with a cellular structure with a minimal surface is located on a crushed stone base supporting the structure in a permanent position. A "gyroid" with a cellular structure with an area of cell size change from the base to the shoulder and from the centre to the edges up to the solid layer intersects the subgrade embankment in the transverse direction. The culvert is made with a drainage slope to the field side from high-strength concrete based on polymeric binders.

EFFECT: improvement in the drainage and water flow properties of the subgrade embankment.

1 cl, 2 dwg