CN211948236U - Double-layer gate landscape weir dam - Google Patents

Abstract

The utility model provides a double-deck gate view weir dam, the weir dam mainly comprises concrete weir body and double-deck gate, double-deck gate turns over board gate, weir body towards husky hole floodgate including setting up at the top layer at concrete weir body top, sets up towards husky hole floodgate headstock gear at concrete weir body top, sets up weir body towards husky floodgate hole in concrete weir body, and weir body towards husky floodgate hole sets weir body towards husky hole floodgate, concrete weir body sets up on the reinforced concrete bottom plate. The utility model discloses simple structure, construction technology and construction quality control are more convenient, can satisfy the retaining function of weir dam and can compromise the ecological effect of view again, promote the harmonious development of people and nature, and then do more big contributions to peripheral ecology, economy and social development.

Description

Double-layer gate landscape weir dam

Technical Field

The utility model relates to a view weir dam structure of double-deck gate.

Background

The common form of traditional weir dam design is single, all plays roles such as retaining, irrigation under the prerequisite of satisfying the flood control basically to view, sand washing and ecological environmental protection demand have not been considered. In recent years, the country advocates low carbon emission reduction, energy conservation and environmental protection, so on the premise of meeting flood control safety, a novel weir dam which can reduce the consumption of concrete, adjust upstream and downstream water levels, keep ecological base flow in a dry season, pre-discharge flood in a flood season and improve ecological and landscape properties is needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a simple structure, construction technology and construction quality control are more convenient, can satisfy the retaining function of weir dam and can compromise the double-deck gate view weir dam of the ecological effect of view again.

The utility model adopts the technical proposal that:

the double-layer gate landscape weir dam is characterized by mainly comprising a concrete weir body and a double-layer gate, wherein the double-layer gate comprises a top layer flap gate and a weir body sand flushing hole gate which are arranged at the top of the concrete weir body, sand flushing hole gate opening and closing equipment is arranged at the top of the concrete weir body, a weir body sand flushing gate hole is arranged in the concrete weir body, the weir body sand flushing gate hole is matched with the weir body sand flushing hole gate, and the concrete weir body is arranged on a reinforced concrete bottom plate.

The height and the thickness of the weir body are determined according to the difference between the upstream water level and the downstream water level and the upstream incoming water flow rate, and the height of the concrete weir body meets the requirement of the water storage height in the dry season to achieve the water storage effect.

The height of the flap gate corresponds to the water level of a flood period, the high-water-head landscape water level can be kept in the flood period, the flap gate is low in cost and easy to operate, the flap gate is attractive in shape, and compared with a concrete weir dam with the same water retaining height, the flap gate has the characteristics of saving investment, reducing manufacturing cost, shortening construction period, being strong in flexibility and the like.

The flap gate has strong adaptability to the condition that the mountain stream river channel is suddenly expanded and fallen, and can be opened horizontally to pre-discharge flood in advance before the arrival of flood is predicted, so that certain flood capacity at the upstream is ensured.

The concrete weir body is provided with a plurality of sand washing gate holes according to the flow rate of the downstream base flow and the sand washing requirement, and underwater silt washing can be carried out by adopting a 'fast water sand washing' method, so that the sedimentation degree of an upstream river channel is reduced. The size of the sand washing gate hole of the weir body is determined according to the height of the bottom of an upstream riverbed, the upstream sand amount, the upstream riverway pre-drainage amount, the downstream ecological base flow guarantee amount and the like, and the opening height of the sand washing gate hole is controlled according to the opening and closing equipment at the top of the weir body.

The weir body is provided with a plurality of sand flushing hole gates, and the weir dam can keep adjustable ecological base flow in a dry period and provides support for ensuring downstream flow.

The utility model has the advantages that:

1. the traditional weir dam is optimized, the structural form is simple, the construction technology and the construction quality are convenient to monitor, and the construction process can be accelerated.

2. The weir dam has optimized structure, reduces civil engineering amount in the construction process, saves energy, protects environment, and has good application condition for the operation of weir dams on mountain stream rivers with large water level difference change.

3. The flap gate at the top of the weir dam can keep landscape water level, is low in cost, easy to operate and attractive in shape, forms an elegant waterfall water curtain during overflow, and has a good effect on the improvement of ecological landscape.

4. This weir dam body sets up a plurality of sand washing hole floodgates and can carry out under water towards the silt, and the sluice gate size comes the sand volume according to the upper reaches and calculates, opens the sand washing gate and can reduce the life of artifical maintenance cost extension weir dam to the desilting maintenance that carries on in the upper and lower stream river course.

5. The body of the dam is provided with a plurality of sand flushing hole gates, the sand flushing gates are opened to a certain opening degree according to flow measurement and calculation results in a dry season, adjustable ecological base flow is kept, and the water storage capacity of a downstream river channel can be kept to play an active role.

6. The barrage can correspondingly improve and control the ecological environment and the ecological quality in the region by adjusting the silt and the water flow, thereby promoting the harmonious development of people and nature and further making greater contribution to the development of surrounding ecology, economy and society.

Drawings

Fig. 1 is a plan view of a weir provided by the present invention.

Fig. 2 is a cross-sectional view taken along the line a-a in fig. 1.

Detailed Description

As shown in fig. 1, the barrage of the embodiment includes a top flap gate 1, a sand-flushing hole gate opening and closing device 2, a weir body sand-flushing hole gate 3, a concrete weir body 4, a weir body sand-flushing gate hole 5 and a reinforced concrete bottom plate 6, wherein the concrete weir body 4 is arranged on the reinforced concrete bottom plate 6.

The height of the concrete weir body 4 meets the requirement of the water storage height in the dry season, so that the water storage function is realized. The height of the flap gate 1 corresponds to the water level in the flood period. The concrete weir body 4 is provided with a plurality of sand washing gate holes 5 according to the flow of downstream base flow and sand washing requirements, and the weir body sand washing gate 3 is arranged at the downstream end part of the sand washing gate holes 5.

Because of mountain stream nature river course flood dry season water level change great, during the flood upstream and downstream view water level is higher, and top layer flap gate 1 closes the manger plate, and dam manger plate height is concrete weir body 4 height and top layer flap gate 1 height. The view water level of low stage up-and-down stream is lower, and top layer flap gate 1 falls open for one's own lying, and the dam manger plate height is concrete weir body 4 height. The double-layer gate landscape weir dam of the embodiment can adapt to the characteristic that the water level change on a small and medium mountain stream river channel is large, and meanwhile, compared with the traditional weir dam, the double-layer gate landscape weir dam is simple in construction, low in manufacturing cost, convenient to operate, flexible and high in adaptability.

When the downstream water level is very low and the downstream ecological base flow water level can not be ensured, the upstream water level is still higher due to the fact that the upstream water level difference is larger, but is lower than the top elevation of the concrete weir body 4, in order to ensure that a certain amount of the downstream ecological base flow and the landscape water level exist, when the top layer flap gate 1 is completely opened, the opening degree of the sand washing gate hole can be opened according to the calculation result, the ecological water level is adjusted, meanwhile, sand is properly washed, the sedimentation condition in front of the upstream weir is improved, and the positive effect on the water storage capacity of the downstream river channel is kept.

Therefore, the utility model discloses with functions such as weir dam retaining, flood of releasing, river course sand washing, keep ecological base flow and view water level concentrate on an organic whole, when the flood control, adjustable upper reaches harmony water and upper and lower reaches water level, let out flood in advance, improve peripheral water environment, guarantee the ecological base flow in low reaches, can carry out corresponding improvement and treatment to ecological environment and ecological quality in the region to the regulation of silt, rivers, promote the harmonious development of people and nature. Moreover, the weir dam has simple structure, convenient construction and low construction cost, and is suitable for the hydraulic weir dam engineering on the middle and small mountain stream river channels.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention, which is not illustrated herein.

Claims (5)

1. The utility model provides a double-deck gate view weir dam, its characterized in that, the weir dam mainly comprises concrete weir body (4) and double-deck gate, double-deck gate is including setting up top layer flap gate (1), weir body towards husky hole floodgate (3) at concrete weir body top, sets up towards husky hole floodgate start-stop equipment (2) at concrete weir body top, sets up weir body towards husky floodgate hole (5) in concrete weir body, and weir body towards husky floodgate hole (5) are furnished weir body towards husky hole floodgate (3), the concrete weir body sets up on reinforced concrete bottom plate (6).

2. The double-layer gate landscape barrage of claim 1, wherein: the height of the flap gate (1) corresponds to the water level in the flood period.

3. The double-layer gate landscape barrage of claim 1, wherein: the concrete weir body is provided with a plurality of sand washing gate holes (5) according to the flow of downstream base flow and sand washing requirements.

4. The double-layer gate landscape barrage of claim 1, wherein: the weir body sand washing hole gate (3) is arranged at the downstream end part of the sand washing gate hole (5).

5. The double-layer gate landscape barrage of claim 1, wherein: the height of the concrete weir body meets the requirement of the water storage height in the dry season, so that the water storage function is realized.

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