CULVERT IN CONDITIONS OF PERMANENTLY FROZEN SOILS ON PERIODIC WATER COURSE Russian patent published in 2009 - IPC E02B7/06 

FIELD: construction industry, water engineering.

SUBSTANCE: invention refers to construction industry and can be used during construction or reconstruction the dike of line structure with installation of culverts in conditions of permanently frozen soils when crossing periodic water courses with low flow. Culvert includes water piping part which is made of gabions connected to each other, enclosed in cross section from below and on sides in waterproof membrane and heat insulating cover, and from above it is covered with canvas interconnected with waterproof membrane. On upstream side of culvert there located is impervious screen with wing walls, which is interconnected with permanently frozen soils of the bottom. Gabions are metal meshed rectangular-shaped baskets which are filled with rock material and located in tiers and form with their rows the water supply channels with specified sizes in direction of longitudinal culvert axis. Roof of water supply channel is formed with gabions of the above tier or with flat element, and bottom -with gabions of the tier located below or with protection element.

EFFECT: invention allows improving reliability of the structure and enlarging application field of culvert.

8 cl, 7 dwg