CULVERT UNDER BANKED EARTH IN CONDITIONS OF PERMANENTLY FROZEN GROUNDS IN PERIODIC WATER COURSE Russian patent published in 2010 - IPC E01F5/00 

FIELD: road construction industry.

SUBSTANCE: invention can be used when making culvert under banked earth in conditions of permanently frozen grounds in periodic water course. Culvert includes high flow pipe with inlet head, which provides passage of flows during warm season, outlet section and at least two one-piece metal low flow pipes which are located on both sides of high flow pipe at some distance from high flow pipe and at the level of its base or below, equipped with water inlet attached to them, which is located in filtering water collector before inlet head of high flow pipe, and the above pipes provide gravity-flowing passage of ground water during cold season, which is capable of forming flooding ice within culvert. Outlet section includes the well, at least the bottom and baffle wall of which are made of gabions connected to each other. Low flow pipes with the well are located on its bottom and are taken out beyond the well. Gabions of baffle wall from upper side in relation to direction of water flow are adjacent to rigid transverse element attached to low flow pipes and transferring longitudinal load of water flow from baffle wall to those pipes.

EFFECT: invention improves reliability of culvert and simplifies its operation.

6 cl, 6 dwg