CN220598356U - Open overflow weir capable of three-side water inlet - Google Patents
Open overflow weir capable of three-side water inlet Download PDFInfo
- Publication number
- CN220598356U CN220598356U CN202321600506.7U CN202321600506U CN220598356U CN 220598356 U CN220598356 U CN 220598356U CN 202321600506 U CN202321600506 U CN 202321600506U CN 220598356 U CN220598356 U CN 220598356U
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- weir
- weir body
- straight line
- circular arc
- bottom plate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000004567 concrete Substances 0.000 claims abstract description 7
- 238000011065 in-situ storage Methods 0.000 claims abstract description 5
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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Abstract
The utility model provides an open overflow weir capable of three-side water inflow, which comprises a weir body circular arc section (1), a weir body straight line section (2) and a bottom plate (3), wherein the weir body circular arc section (1), the weir body straight line section (2) and the bottom plate (3) are of a concrete cast-in-situ integral structure. Compared with the traditional brake control scheme, the utility model is suitable for small reservoir extension projects, and has the advantages of low operation cost, convenient management and relatively small investment.
Description
Technical Field
The utility model relates to the technical field of hydraulic engineering, in particular to an open overflow weir capable of feeding water from three sides.
Background
The open spillway is that the inlet control section is open and the lower drainage flow has free surface, and the control section includes open overflow weir and two sides connected building. The drainage capacity of an open weir is proportional to the total clear width of the weir. More than 94000 small reservoirs exist in China. Along with the increase of the comprehensive water consumption of towns and the expansion of the agricultural irrigation area, in order to improve the water supply, irrigation and other benefits of small reservoirs by increasing the volume of the Xingli reservoirs, reservoirs need to be expanded, and the expansion generally adopts a scheme of combining the increase of the dam height and the reconstruction of the original spillway, if the newly built spillway investment is often larger. If a common straight-line weir scheme is adopted when the original spillway is rebuilt at the same designed dam top elevation, the overflow capacity is smaller due to smaller total clear width of the overflow weir, which is not preferable; if the traditional gate control scheme is adopted, personnel control is needed during flood discharge, the operation cost is high, and the management is inconvenient. Therefore, the overflow weir can greatly improve the drainage capacity, has low operation cost and convenient management, and becomes a great difficulty for design engineers.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the open overflow weir which can greatly improve the drainage capacity, has low operation cost and is convenient to manage. Compared with the traditional brake control scheme, the utility model is suitable for small reservoir extension projects, and has the advantages of low operation cost, convenient management and relatively small investment.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
an open overflow weir capable of three-side water inlet, which is characterized in that: comprises a weir body circular arc section, a weir body straight line section and a bottom plate.
Further: the weir body adopts a concrete gravity structure, and the weir top adopts an arc shape.
Further: the overflow weir bottom plate adopts a reinforced concrete structure, and tooth grooves which protrude out of the bottom plate and are embedded into the foundation are arranged on the upstream of the water facing side of the arc section of the weir body and the straight line section of the weir body.
Further: the circular arc section of the weir body of the overflow weir, the straight line section of the weir body and the bottom plate are of a concrete cast-in-situ integral structure.
Further: the overflow weir is disposed in a small reservoir with wide terrain geological conditions in front of the weir.
Compared with the prior art, the utility model has the following advantages:
compared with the traditional gate control scheme, the utility model is suitable for small reservoir extension projects, not only can raise the height of the top of the weir, improve the normal water storage level and achieve the aim of increasing the capacity of the reservoir, but also can increase the total clear width of the overflow weir through smooth connection of the circular arc section of the weir body and the straight line section of the weir body, greatly improve the flow discharging capability, meet the flow requirement of the discharge design, and do not need personnel control, nor need a gate or an headstock gear during flood discharge, thereby reducing engineering investment, running cost and convenient management.
Drawings
Fig. 1 is a longitudinal sectional view of a use state provided by the present utility model.
Fig. 2 is a top view provided by the present utility model.
Reference numerals: 1-a weir body arc section; 2-a weir body straight line segment; 3-a bottom plate.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present utility model; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship described in the drawings are for illustrative purposes only and are not to be construed as limiting the utility model.
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
As shown in fig. 1 to 2, an open overflow weir capable of three-side water inflow comprises a weir body circular arc section 1, a weir body straight line section 2 and a bottom plate 3, wherein the weir body circular arc section 1 is smoothly connected with the weir body straight line section 2.
The overflow weir body circular arc section 1, the weir body straight line section 2 and the bottom plate 3 are of a concrete cast-in-situ integral structure.
The overflow weir bottom plate 3 adopts a reinforced concrete structure, and the upstream of the water facing side of the weir body circular arc section 1 and the weir body straight line section 2 are provided with anti-slip tooth grooves which protrude out of the bottom plate 3 and are embedded into a foundation, and the anti-slip tooth grooves are used for anti-slip, embedding and increasing seepage diameters.
The ratio of the height difference of the design flood level to the weir crest (i.e. the pre-weir head) to the weir crest diameter (i.e. the weir crest width) needs to be greater than 0.67 and less than 2.5 to form a practical weir flow.
The height of the weir crest of the overflow weir is the same as the normal water storage level of the reservoir so as to increase the capacity of the reservoir.
The overflow weir body circular arc section 1, the weir body straight line section 2 and the bottom plate 3 are all arranged in a small reservoir with wider terrain and geological conditions in front of the weir, so that water in the reservoir can flow into the overflow groove from the three sides of the overflow weir circular arc section and the two sides of the straight line section.
The overflow weir is smoothly connected with the straight line segment 2 of the weir body through the circular arc segment 1 of the weir body, so that the total clear width of the overflow weir is increased, three-surface water inflow is realized, and the drainage capacity is greatly improved.
Based on the description of the utility model and the drawings, those skilled in the art will readily make or use an open weir with three-sided water inlet and produce the positive effects described herein.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.
Claims (4)
1. An open overflow weir capable of three-side water inlet, which is characterized in that: the concrete cast-in-situ integral type concrete casting device comprises a weir body circular arc section (1), a weir body straight line section (2) and a bottom plate (3), wherein the weir body circular arc section (1), the weir body straight line section (2) and the bottom plate (3) are of a concrete cast-in-situ integral type structure.
2. An open overflow weir with three side water intakes as defined in claim 1 wherein: the weir body circular arc section (1) is smoothly connected with the weir body straight line section (2).
3. An open overflow weir with three side water intakes as defined in claim 1 wherein: the overflow weir bottom plate (3) adopts a reinforced concrete structure, and the upstream of the water facing side of the weir body circular arc section (1) and the weir body straight line section (2) are provided with anti-skid tooth grooves which protrude out of the bottom plate (3) and are embedded into a foundation.
4. An open overflow weir with three side water intakes as defined in claim 1 wherein: the overflow weir body circular arc section (1), the weir body straight line section (2) and the bottom plate (3) are all arranged in a small reservoir with wider terrain geological conditions in front of the weir, so that water in the reservoir can flow into the overflow groove from three sides of the overflow weir circular arc section and the two sides of the straight line section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321600506.7U CN220598356U (en) | 2023-06-24 | 2023-06-24 | Open overflow weir capable of three-side water inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321600506.7U CN220598356U (en) | 2023-06-24 | 2023-06-24 | Open overflow weir capable of three-side water inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220598356U true CN220598356U (en) | 2024-03-15 |
Family
ID=90166341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321600506.7U Active CN220598356U (en) | 2023-06-24 | 2023-06-24 | Open overflow weir capable of three-side water inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220598356U (en) |
-
2023
- 2023-06-24 CN CN202321600506.7U patent/CN220598356U/en active Active
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