Venturi channel for generating turbulences in free surface flow of water to measure flow in water controlling applications by local authorities, has reinforcement comprising sides with openings to allow flow of concrete during casting step

摘要

The channel (1) has side walls (10, 11) defining a localized shrinkage (101) of section of the channel, where the channel is made of laminated composite material. Longitudinal reinforcement (20) is extended longitudinally on an external face of each of the side walls. The reinforcement includes two sides (20a, 20b) inclined with respect to the side wall, where each of the sides includes openings (200a, 200b) allowing flow of concrete during casting step around the channel. The reinforcement includes a profile e.g. Omega profile.