Overflow and anti-blocking dam structure for water conservancy projects

Abstract

The invention discloses an overflow and anti-blocking dam structure for water conservancy projects. The overflow and anti-blocking dam structure comprises a dam crest, a dam middle body and a dam baseand is characterized in that a gate pier is arranged on the dam crest, a gate is arranged in the gate pier, a bridge for mounting gate opening and closing equipment is arranged on the gate pier, a control chamber is arranged on the bridge, a first overflow channel and a second overflow channel are arranged in the dam middle body from top to bottom, a third overflow channel and a sand discharge channel are arranged in the dam base from top to bottom, a bottom pier is arranged on the right of the dam base, a lower ogee section is arranged between the bottom pier and the dam crest, a generator set room is arranged on the bottom pier, a hydroelectric generator rotor is arranged on the generator set room, and a spiral conveying belt for conveying sand is arranged on the left in the sand discharge channel. The overflow and anti-blocking dam structure with the sand discharge device and the power generation device is high in sand discharge and flood discharge capacity, large in water storageheight and convenient to maintain.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a dam body structure for overflow and blockage prevention of water conservancy engineering facilities. Background technique [0002] At present, projects built to control and deploy surface water and groundwater in nature to achieve the purpose of eliminating harm and rejuvenating benefits are also called water projects; water is an indispensable and precious resource for human production and life, but its natural state It does not fully meet the needs of human beings. Only by building water conservancy projects can water flow be controlled, floods prevented, and water volume adjusted and distributed to meet the needs of people's lives and production for water resources. Common overflow dams are generally made of concrete Or mortar masonry, according to the type of dam, there are overflow gravity dam, overflow arch dam, overflow pier dam and overflow earth-r...

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Problems solved by technology

But this invention has no sand discharge device, the sand discharge ability is relatively weak, and the flood discharge capacity is easily reduced due to sediment deposition, and it also has the disadvantages of small water storage height, inconvenient maintenance, and inability to use hydropower to generate electricity

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