FIELD: construction; mechanics.
SUBSTANCE: fishway input end wall includes downstream part of fishway path located in channel downstream, implemented as benched or slope conveyor or channel with longitudinal slope sideways channel downstream containing vertical transverse separation walls and inlet separation wall, forming input fishway chamber with located inside by the full width of fishway chambers swimming in holes of rectangular, square or round shape. By perimeter of holes there are located stream forming bleeds angularly or parallel to holes axes, which are outfitted by obstructing screens as bleeds are inside formed by screens outlet part of swimming in hole and located parallel to screen wall surface of adjoined obstructing screens. Outlet holes of bleeds are located directly inside of swimming in holes between planes of lateral surfaces cross separation walls or inside of autonomous channel. Input separation wall of fishway input end wall with swimming in hole is implemented in plane by circular arc with formation of cylindrical surface and swimming in hole is located along the full length of input separation wall of fishway input end wall. Swimming in hole has shape of hole situated on diagonals cross and orthogonal to cylinder axes square.
EFFECT: increasing of efficiency for fish attraction from big width of water course in channel downstream of hydrosystem.
2 cl, 4 dwg
