Protective structure for flood fighting of dam
The dam protection structure addresses the issue of excessive floodwater by using a sloped discharge face and water storage system to divert and manage floodwaters, minimizing damage through controlled discharge and diversion.
Patent Information
- Application Number
- CN202422368121.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing dam protection structure cannot effectively reduce flooding, and water level exceeding the fence will still cause serious damage.
A combination of water storage structure and water conduit pipe is designed to control the water flow through the drainage port and the current limiting baffle, and combine the drainage and sand discharge structure to achieve automatic collection and diversion of water.
During flooding period, it automatically assists in collecting water flow, alleviates downstream drainage pressure, reduces damage to the surrounding area of the dam, and improves protection effect.
Smart Images
Figure CN223103582U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dam protection, and particularly relates to a protection structure for dam flood control. Background Technique
[0002] A dam is a large-scale hydraulic engineering structure. A dam is a hydraulic structure built for a specific purpose, and its main functions are to regulate water flow, prevent floods, and can also be used for power generation, irrigation, water supply, shipping, etc. It is usually built on a certain cross-section of a river, effectively intercepting the water flow and forming a large reservoir.
[0003] During the flood control period, flood discharge is required to reduce the water volume in the reservoir, river or other water areas. When the water level in the water area rises to a threatening level, such as when a flood disaster may be triggered, taking flood discharge measures can effectively control the water level and reduce risks. Excessive flood discharge will cause serious damage to the downstream area. Therefore, it is necessary to increase the protection structure to protect the surrounding area. Ordinary protection structures limit the water flow by setting up fences, but they cannot reduce the water volume. When the water level exceeds the fence, it will still cause great damage. Content of the Utility Model
[0004] The purpose of the utility model is to provide a protection structure for dam flood control, which solves the problems that the water volume cannot be reduced and great damage will still be caused when the water level exceeds the fence.
[0005] The utility model solves the above technical problems through the following technical solutions. The utility model includes:
[0006] A dam main body, a discharge slope is arranged at the bottom of the front side of the dam main body, drain openings are opened on both sides of the dam main body above the discharge slope, and a sand discharge opening is opened at the central position of the dam main body above the discharge slope;
[0007] A water storage structure, which is used to assist in storing water during the flood control stage. The water storage structure is arranged on both sides of the dam main body, and a water guide pipe is installed between the drain opening and the water storage structure near the top on one side.
[0008] Preferably, a flow limiting baffle is fixedly installed on the side wall of the water guide pipe in the drain opening, and the flow limiting baffle is used to increase the water pressure at the edge.
[0009] Preferably, a drainage arc surface is arranged at the rear side corner of the flow limiting baffle, and the drainage arc surface is used to improve the drainage speed.
[0010] Preferably, a drain pipe is installed at the bottom of the water storage structure, and a control valve is installed on the drain pipe.
[0011] Preferably, a pipe groove is formed between the side wall of the dam and the discharge inclined plane, and part of the drain pipes are arranged in the pipe groove.
[0012] Preferably, a sand discharge net is installed at the rear side of the sand discharge port.
[0013] Preferably, a drainage inclined plane is arranged at the bottom of the drainage port, and a sand discharge inclined plane is arranged at the bottom of the sand discharge port.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] Through the position design of the water storage structure and the water guide pipe, the present utility model can automatically assist in collecting water during the flood fighting period, so it can help relieve the downstream drainage situation and effectively protect the surrounding area of the dam. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the front perspective view of the present utility model;
[0017] Figure 2 is the rear perspective view of the present utility model;
[0018] Figure 3 is the three-dimensional view of the water storage structure of the present utility model;
[0019] Figure 4 is the three-dimensional view of the flow-limiting baffle of the present utility model.
[0020] The numbers in the figures represent:
[0021] 1, dam main body; 2, discharge inclined plane; 3, drainage port; 4, sand discharge port; 5, water storage structure; 6, water guide pipe; 7, flow-limiting baffle; 8, drainage arc surface; 9, drain pipe; 10, control valve; 11, pipe groove; 12, sand discharge net; 13, drainage inclined plane; 14, sand discharge inclined plane. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following further describes in detail the above and other technical features and advantages of the present utility model with reference to the accompanying drawings.
[0023] This embodiment provides a technical solution: a flood protection structure for a dam, as Figure 1 and Figure 2 shown, including a dam main body 1 and a water storage structure 5. A discharge inclined plane 2 is arranged at the bottom of the front side of the dam main body 1, which can ensure more stable and smooth drainage and sand discharge. Drainage ports 3 are arranged on both sides of the dam main body 1 above the discharge inclined plane 2, through which the drainage operation can be completed. A sand discharge port 4 is arranged at the central position of the dam main body 1 above the discharge inclined plane 2, through which the sand discharge operation can be completed.
[0024] In a specific implementation, the water storage structure 5 is used to assist in water storage during the flood control stage. The number of water storage structures 5 can be controlled according to requirements. The water storage structures 5 are arranged on both sides of the main dam body 1. A water guiding pipe 6 is installed between the side near the top of the drainage outlet 3 and the water storage structure 5. During normal times or when the water level rises slightly, when the water flows through the drainage outlet 3, it will not reach above the inner wall of the drainage outlet 3. During the flood control period, the water level is relatively high, and the drainage outlet 3 will be in a full state. At this time, the flowing water can enter the water storage structure 5 through the water guiding pipe 6. Assisting in water storage through the water storage structure 5 can help relieve the downstream drainage situation. The water storage structure 5 can be arranged in the rock mass on both sides of the dam, or it can be discharged in other rivers at a relatively far position through a long pipe. When arranged at a relatively far distance, the water guiding pipe 6 needs to be inclined downward to ensure smooth drainage.
[0025] Furthermore, as Figure 4 shown, a flow limiting baffle 7 is fixedly installed on the side wall of the drainage outlet 3 where the water guiding pipe 6 is located. The flow limiting baffle 7 is used to increase the water pressure at the edge. After the flow limiting baffle 7 is set, when the water enters the drainage outlet 3, it can impact the flow limiting baffle 7. Therefore, a backflow situation can occur and merge with the water behind. At this time, the water pressure at the contact position between the flow limiting baffle 7 and the drainage outlet 3 can increase, so it is easier to enter the water guiding pipe 6.
[0026] Even further, a drainage arc surface 8 is provided at the rear corner of the flow limiting baffle 7. The drainage arc surface 8 is used to improve the drainage speed.
[0027] Even further, as Figure 3 shown, a drain pipe 9 is installed at the bottom of the water storage structure 5, and a control valve 10 is installed on the drain pipe 9. Through the drain pipe 9, the water collected in the water storage structure 5 can be conveniently discharged.
[0028] Even further, as Figure 1 shown, a pipe groove 11 is formed between the side wall of the dam and the discharge slope 2. Part of the drain pipe 9 is arranged in the pipe groove 11. By arranging the end of the drain pipe 9 on the discharge slope 2, the water collected can be discharged again through the discharge slope 2 of the main dam body 1 after the flood control ends.
[0029] Even closer, as Figure 2 shown, a sand discharge net 12 is installed at the rear of the sand discharge port 4. The sand discharge net 12 is made of a high-strength and wear-resistant metal material. The mesh size of the sand intercepting net is optimized, which can not only effectively intercept larger particles of sand and gravel, but also ensure the normal passage of water flow, further improving the sand intercepting effect.
[0030] Even further, as Figure 1 shown, a drainage slope 13 is provided at the bottom of the drainage outlet 3, and a sand discharge slope 14 is provided at the bottom of the sand discharge port 4. Through the drainage slope 13 and the sand discharge slope 14, the drainage and sand discharge can be ensured to be stable and smooth.
[0031] The above are only the preferred embodiments of the present utility model, which are merely illustrative rather than restrictive to the present utility model. Those skilled in the art understand that many changes, modifications, or even equivalents can be made to it within the spirit and scope defined by the claims of the present utility model, but all of them will fall within the protection scope of the present utility model.
Claims
1. A protective structure for flood control of a dam, characterized in that, Comprising: A dam main body (1), a discharge inclined plane (2) is arranged at the bottom of the front side of the dam main body (1), drainage openings (3) are formed on both sides of the dam main body (1) above the discharge inclined plane (2), and a sand discharge opening (4) is formed at the center position of the dam main body (1) above the discharge inclined plane (2); A water storage structure (5) which is used for auxiliary water storage during the flood control stage, the water storage structure (5) is arranged on both sides of the dam main body (1), and a water guide pipe (6) is installed between one side of the drainage opening (3) near the top position and the water storage structure (5).
2. The protective structure for dam flood control according to claim 1, wherein, A flow limiting baffle (7) is fixedly installed on the side wall of the water guide pipe (6) inside the drainage opening (3), and the flow limiting baffle (7) is used for increasing the water pressure at the edge.
3. The flood protection structure for a dam as claimed in claim 2, wherein, A drainage arc surface (8) is arranged at the rear side corner of the flow limiting baffle (7), and the drainage arc surface (8) is used for improving the drainage speed.
4. A protective structure for dam flood control as described in claim 1, characterized in that, A drain pipe (9) is installed at the bottom of the water storage structure (5), and a control valve (10) is installed on the drain pipe (9).
5. The flood protection structure for a dam according to claim 4, characterized in that, A pipe groove (11) is formed between the side wall of the dam and the discharge inclined plane (2), and a part of the drain pipe (9) is arranged in the pipe groove (11).
6. The flood protection structure for a dam as described in claim 1, wherein, A sand discharge net (12) is installed at the rear side of the sand discharge opening (4).
7. The flood protection structure for a dam as described in claim 1, characterized in that, A drainage inclined plane (13) is arranged at the bottom of the drainage opening (3), and a sand discharge inclined plane (14) is arranged at the bottom of the sand discharge opening (4).