FIELD: construction.
SUBSTANCE: water retaining dam comprises a stepped weir, a supply and a drain sections. There are plunged basins in the stepped weir, as well as side abutments to couple top and bottom abutments. There is a retaining structure built in on the inlet section of the stepped weir. The retaining structure comprises matched coaxial hollow semicylinders with a common axis of rotation. The inner rotating semicylinder is divided into sectors by links. The external semicylinder is in static position and is built into the weir body by a flat face aligned upwards. The inner semicylinder is tight and filled with water from upper reach. Semicylinders are emptied by water self-flow into the lower reach.
EFFECT: increased efficiency of retaining structure operation reliability.
3 dwg
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|
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