MOVABLE BANK PROTECTION GROIN Russian patent published in 2020 - IPC E02B3/02 E02B3/06 

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering and nature protection construction and can be used for protection of river coastal zones from processes by their natural reformation and for rectification of river route. Invention purpose is as follows: preservation of operational characteristics of the bank protection groin at change of the hydrological mode of the river. Groin is made limited in horizontal and vertical motion and includes: groin head in form of variable height pile; groin body in form of a variable-section garland with possibility of movement along horizontal and vertical lines; groin root in the form of a movable block with possibility of movement along the horizontal along the river bank and along the vertical at exposure of the river bottom with reduction of its level.

EFFECT: proposed design makes it possible to hide groin head and body during ice drift and icy conditions in thickness of water under ice; to cover by groin body the coastal flow at any water level; to change groin inclination angle relative to protected bank.

1 cl, 3 dwg