A high-efficiency energy-dissipating flood discharge and overflow dam surface structure

Abstract

The invention discloses an efficient energy dissipation and flood discharge overflow dam surface structure. The efficient energy dissipation and flood discharge overflow dam surface structure is composed of an overflow dam body, an overflow dam surface, a flow jetting arc bottom, a low layer flow jetting channel, a high layer flow jetting channel, high layer flow jetting and guiding channels and a high layer flow jetting channel water diversion tip; channel dividing flow jetting is performed when the overflow dam surface reaches the flow jetting arc bottom; the high layer flow jetting channel is divided into the two high layer flow jetting and guiding channels in the left and right direction; the high layer flow jetting and guiding channels are both curved surfaces in the vertical direction and the horizontal direction; the discharged flow is guided to the direction of the lower layer flow jetting channel in the horizontal direction while discharged flow is jetted up in the plumb direction; jet flow passing through a flip bucket is properly thrown to the position above jet flow of the low layer flow jetting channel; jet flow of the high layer flow jetting channel is high and near; the jet flow of the low layer flow jetting channel is low and far; the jet flow of the high layer flow jetting channel falls from the high position and just hits the jet flow of the low layer flow jetting channel; and two strands of water flow and carried gas strongly collide with each other and are mixed, and the effect of efficiently dissipating energy is achieved.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a high-efficiency energy dissipation flood discharge and overflow dam surface structure. Background technique [0002] A dam is a water-retaining structure that intercepts the water flow of a river to raise the water level or regulate the flow. It has the functions of regulating runoff, flood control, water supply, power generation, and so on. Flood discharge from dams is often a thorny problem for hydraulic project designers. Poor geological conditions and severe scour caused by deflected flow energy dissipation will cause river bank collapse and even threaten the safety of the main project. Flood discharge and energy dissipation of large reservoirs are even more difficult tasks. Traditional deflecting flow, bottom flow, and bucket flow cannot achieve good energy dissipation effects. Flood discharge and energy dissipation of dams have long been an issue th...

AI Technical Summary

Problems solved by technology

Flood discharge from dams is often a difficult problem for hydraulic project designers. Poor geological conditions and severe scour caused by deflected flow energy dissipation will cause river bank collapse and even threaten the safety of the main body of the project

Flood discharge and energy dissipation of large reservoirs is a very difficult task. Traditional deflecting flow, bottom flow, and bucket flow cannot achieve good energy dissipation effects.

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