Multi-arch plate ecological fishway partition plate

Abstract

The invention discloses a multi-arch plate ecological fishway partition plate. The multi-arch plate ecological fishway partition plate comprises one or more sub partition plates which are arranged side by side. Each sub partition plate is in an arch shape. Fish passing notches are formed in the upper portions of the sub partition plates, and flow passing holes are formed in the lower portions of the sub partition plates. Sand passing holes are formed in the two ends of the bottoms of the sub partition plates. According to the sub partition plates, arc-shaped arched plates are used for replacing flat plates, the structure tension performance is improved obviously, the bearing deformation capacity of the structure is improved, and thus materials needed by the structure can be saved. Fishway bottom silt can be discharged to the downstream easily through the sand passing holes along the bottom edges of the arced plates, so that fishway sediment accumulation is avoided all the time, the ecological effect of automatic desilting is achieved, and the fishway ecological environment is improved. The U-shaped fish passing notches are adopted in the arc-shaped arched plates, and an obvious water damming effect can be achieved; and meanwhile, the flow passing holes are formed below and at the two sides of the notches, water flow can rush out of the lower sides of the notches and collide with falling water flow of the notches so that water flow energy can be further consumed, and water flow stability can be facilitated. The water flow energy can be further removed through staggered arrangement of bottom sills.

Description

technical field [0001] The invention relates to the technical field of fishway partitions, in particular to a multi-arch ecological fishway partition. Background technique [0002] With the gradual acceleration of the development of water conservancy and hydropower resources in our country, people continue to build various water conservancy projects on rivers. While these projects bring economic effects to human beings, they also block the passage of migratory fish in the river and the protection of natural fishery resources. The degradation has become increasingly serious, and the development of water conservancy and hydropower resources has endangered rare and endemic fish in national nature reserves. With the strengthening of the awareness of social ecological environment protection, the research and construction of fish passing facilities has been paid more attention. Among them, fishway is the most widely used one. Fishway is an engineering measure to protect aquatic b...

AI Technical Summary

Problems solved by technology

The mechanical performance of the flat plate partition is not good, it is easy to produce cracks, which affects the durability and service life. Long-term use of fishway

Moreover, there are too few fish passing slots, which is not conducive to a large number of fish passing

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