Tetrahedrons element pasted shrinkage type flip bucket for low wall

Abstract

The invention discloses a tetrahedrons element pasted shrinkage type flip bucket for a low wall. The tetrahedrons element pasted shrinkage type flip bucket comprises discharge chute side walls and a discharge chute bottom plate, wherein the discharge chute side walls are connected to flip bucket side walls; the discharge chute bottom plate is connected to a flip bucket bottom plate; the flip bucket side walls adopt shrinkage type side walls for guiding water flow to the middle; a step-down floor is arranged on the middle part of the flip bucket bottom plate; tetrahedrons elements are arrangedat the two sides of the flip bucket side walls at the two sides; the bottom surfaces of the tetrahedrons elements are arranged on the flip bucket bottom plate; the back surfaces of the tetrahedrons elements tightly cling to the flip bucket side walls; the side surfaces of the tetrahedrons elements are vertically flush to the flip bucket side walls; and an upward inward two-way slope is formed on the front surfaces of the tetrahedrons element. According to the tetrahedrons element pasted shrinkage type flip bucket for the low wall disclosed by the invention, the tetrahedrons elements jack for guiding a water tongue to the upper part and the middle part of the flip bucket, enables high-speed discharged water flow to mutually extrude and collide to dissipate energy, guarantees space stretching and diffusing dissipated energy of the high-speed discharged water flow, reduces height of side walls, and guarantees structure stability. Meanwhile, diffusing type step-down floor embedded into base rocks is arranged on the middle of the flip bucket, so that stability of the flip bucket structure is improved, and water tongue flip is guaranteed.

Description

technical field [0001] The invention relates to a retractable ridge with a triangular body pasted on a short side wall, and belongs to the technical field of water conservancy and hydropower engineering. Background technique [0002] Among the dam discharge structures at home and abroad, deflected flow energy dissipation is the most widely used. The basic principle of deflected flow energy dissipation is to use the huge kinetic energy carried by the high-speed water flow to deflect the water flow to the downstream far away from the building, so that the scour of the river bed by the falling water tongue will not endanger the safety of the building. The water flow should be dispersed as far as possible in the air and underwater range, so as to facilitate the elimination of a large amount of energy through water body shearing and mixing, and reduce the erosion of the river bed. The key to deflecting flow energy dissipation lies in the selection of the shape of the deflector. ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a narrow-wall-attached triangular retractable sill to overcome the relatively high height of the side walls on both sides of the conventional narrow-slit sill and the large pulsating pressure that the high-speed discharge water acts on the two side walls. Conducive to the stability of the structure and the disadvantages that the water tongue is difficult to pick up under low flow

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