Dam anti-seepage structure

By using a multi-layered design of the dam's seepage prevention structure and a drainage system, the problems of poor seepage prevention and stability of traditional dams have been solved, achieving more efficient seepage prevention and stability, and improving the safety and service life of the dam.

CN223974533UActive Publication Date: 2026-03-06SHANXI ZHONGCHUANGCHENG GROUP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional dam seepage prevention devices are ineffective, have poor overall stability, and cannot cope with complex geological conditions and long-term water flow erosion, resulting in leakage, structural instability, and affecting the efficiency and safety of water resource utilization.

Method used

The dam adopts a seepage-proof structure, including the foundation, reverse seepage layer, seepage barrier layer, slope protection, wave wall, drainage components, etc. Through the coordinated work of the multi-layer structure and drainage system, the seepage-proof performance and stability are enhanced, and the dam resists the influence of external forces.

Benefits of technology

It improves the seepage prevention performance and stability of the dam, reduces the risk of leakage, enhances the overall safety and lifespan of the dam, and improves its adaptability to complex natural conditions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223974533U_ABST
    Figure CN223974533U_ABST
Patent Text Reader

Abstract

The utility model provides a dam anti-seepage structure, which belongs to the technical field of anti-seepage structures and comprises a dam main body, footings arranged below the dam main body, the footings are connected with the dam main body through reverse osmosis layers, a dam crest is arranged at the top of the dam main body, an anti-seepage layer is arranged below the dam crest, and protection slopes are arranged on two sides of the dam main body. Wherein a wave wall is arranged between one group of protection slopes and the dam main body, a drainage assembly is arranged in the dam main body, through the arrangement of the drainage assembly, a user can drain permeated water through the drainage assembly, the anti-seepage performance of the device is improved, and when the device is used, the user can use the wave wall and the protection slopes, so that the device is convenient to use. The stability of the dam main body is enhanced by adjusting the height of the dam main body, so that a user can effectively reduce the influence of the external environment, the reliability of the device is improved, and the overall safety of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of anti-seepage structure technology, and more specifically, it relates to an anti-seepage structure for dams. Background Technology

[0002] In the field of water conservancy engineering, dams, as a commonly used water infrastructure, are widely used for impounding water sources, regulating water flow, flood control, irrigation, and hydropower generation, facilitating the rational allocation and utilization of water resources. However, dams on the market are prone to leakage problems during long-term use. If effective anti-leakage measures are not taken, it can easily lead to a large waste of water resources and may also cause instability in the dam structure, affecting the safety of life and property of surrounding residents and the ecological environment. To avoid these situations, a dam anti-leakage structure is used. However, traditional devices are usually simple anti-leakage coatings or single anti-leakage material laying structures, which cannot cope with complex geological conditions and long-term water flow erosion, resulting in poor anti-leakage effect. Water can still slowly seep in, affecting the normal use and lifespan of the dam, and reducing the water resource utilization efficiency and safety of the dam. In addition, traditional devices lack comprehensive consideration of the overall stability of the dam body. Without a stable structure, the dam body is prone to displacement, deformation, or even collapse under the action of external forces such as floods and earthquakes. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a dam seepage prevention structure to solve the technical problems of poor seepage prevention effect and poor overall stability of traditional devices in the prior art.

[0004] The purpose and effect of this utility model's anti-seepage structure for dams are achieved by the following specific technical means:

[0005] A dam seepage prevention structure includes a dam body, a base foot provided below the dam body, the base foot being connected to the dam body through a reverse seepage layer, a dam crest provided at the top of the dam body, a seepage prevention layer provided below the dam crest, slope protection provided on both sides of the dam body, a wave wall provided between one set of slope protection and the dam body, and a drainage component provided inside the dam body.

[0006] According to a preferred embodiment, the drainage assembly includes a drainage pipe disposed within the dam body, and a water-diverting plate is disposed below the drainage pipe.

[0007] According to a preferred embodiment, a plurality of siphon boxes are provided on one side of the water inlet plate, and the plurality of siphon boxes are respectively connected to the siphon boxes through a plurality of guide pipes.

[0008] According to a preferred embodiment, each of the siphon boxes is provided with a water distribution block, and the bottom of each of the multiple sets of siphon boxes is integrally formed with a water outlet pipe, and the multiple sets of water outlet pipes are in contact with the reverse osmosis layer.

[0009] According to a preferred embodiment, the impermeable layer is connected to the dam crest through a protective layer, and drainage channels are provided on the slope protection.

[0010] According to a preferred embodiment, an elastic sealing strip, made of rubber, is provided between the impermeable layer and the protective layer.

[0011] According to a preferred embodiment, the base foot is provided with a drainage groove, and multiple sets of fixing cones are provided below the base foot, with the tops of the multiple sets of fixing cones passing through the reverse osmosis layer and disposed inside the base foot.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through the setting of drainage components, enables users to drain infiltrated water, thereby improving the anti-seepage performance of the device. After water seepage occurs in the dam, users can guide and collect the seepage water through the drainage pipes, water diversion plates, siphon boxes, etc. in the drainage components, and discharge the water through the outlet pipe. This effectively reduces the pressure generated inside the dam due to the accumulation of seepage water, avoids the aggravation of seepage due to excessive water pressure, and improves the stability and reliability of the device.

[0014] 2. When using this device, users can enhance the stability of the dam by setting up wave walls, fixed cones, and slope protection, enabling the user to effectively resist the impact of external forces such as floods, waves, and geological changes, thus improving the device's ability to cope with complex natural conditions. Furthermore, the elastic sealing strip between the seepage prevention layer and the protective layer further strengthens the seepage prevention effect at the top, reducing water seepage into the dam body from the top and improving the overall safety of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0017] Figure 3 This is a front view structural diagram of the present invention;

[0018] Figure 4 This is a side view structural diagram of the present invention;

[0019] Figure 5 This is a schematic diagram of the drainage component structure of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 11. Dam main body; 12. Foundation; 13. Reverse seepage layer; 14. Dam crest; 15. Impermeable layer; 16. Slope protection; 17. Wave wall; 18. Protective layer; 19. Fixed cone; 21. Drainage pipeline; 22. Water diversion plate; 23. Siphon box; 24. Diversion pipe; 25. Water distribution block; 26. Water outlet pipe; 101. Drainage channel; 102. Elastic sealing strip; 103. Drainage channel. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0023] Example:

[0024] like Figures 1 to 3 As shown, this utility model provides a dam seepage prevention structure, including a dam body 11. The dam body 11 allows users to build a complete dam system on its foundation, improving the overall functionality of the device. A base 12 is provided below the dam body 11, which can stably support the dam body 11, enhancing the connection stability between the dam body 11 and the foundation and improving the device's resistance to settlement. The base 12 is connected to the dam body 11 through a reverse seepage layer 13. A dam crest 14 is provided on the top of the dam body 11, and a seepage prevention layer 15 is provided below the dam crest 14. The reverse seepage layer 13 can effectively prevent groundwater from seeping into the dam body 11, reducing the impact of groundwater seepage on the internal structure of the dam body 11, and enabling the device to maintain a good working condition.

[0025] The impermeable layer 15 is connected to the dam crest 14 via the protective layer 18. The protective layer 18 provides additional protection for the impermeable layer 15 below, reducing the wear or damage that the dam crest 14 may cause to the impermeable layer 15, extending the service life of the impermeable layer 15, and improving the durability of the device. Drainage channels 101 are provided on the slope 16. Users can use these drainage channels 101 to guide the water flow on the surface of the slope 16, allowing the device to discharge rainwater and other slope runoff in a timely manner, preventing water from accumulating for a long time and causing erosion damage to the slope 16, thus improving the stability of the device. An elastic sealing strip 102 is provided between the impermeable layer 15 and the protective layer 18. The elastic sealing strip 102 is made of rubber. By using the elastic sealing strip 102, the good elasticity and sealing performance of rubber can fill any small gaps that may exist between the impermeable layer 15 and the protective layer 18, allowing users to further enhance the sealing and seepage prevention effect of the top and improve the seepage prevention reliability of the device.

[0026] A drainage channel 103 is provided on the foundation foot 12. This channel creates a drainage channel around the foundation foot 12, effectively reducing the impact of water flow on the foundation foot 12 and improving its stability and durability. Multiple sets of fixing cones 19 are installed below the foundation foot 12. The tops of these fixing cones 19 penetrate the reverse seepage layer 13 and are embedded within the foundation foot 12. These fixing cones 19 strengthen the anchoring connection between the foundation foot 12 and the underlying stratum, enabling the device to effectively resist horizontal and vertical external forces and improving its overall stability. (Dam main body) Both sides of the dam body 11 are equipped with slope protection 16. The slope protection 16 can protect the soil on the sides of the dam body 11, reduce the loss of soil on the slope due to rainwater erosion and water flow, and enable the user to maintain the stability of the soil on both sides of the dam. One set of slope protection 16 is equipped with a wave wall 17 between it and the dam body 11. The wave wall 17 can block the direct impact of waves on the dam body 11 when facing large wind and waves, so that the user can effectively reduce the risk of damage to the dam structure by wind and waves and improve the device's ability to resist wind and wave attacks.

[0027] like Figures 2 to 5As shown, a drainage system is installed inside the dam body 11. The drainage system includes a drainage pipe 21, which is installed inside the dam body 11. Through the installation of the drainage pipe 21, a drainage channel can be constructed inside the dam body 11, allowing users to collect and guide water that seeps into the dam body 11, thus improving the device's ability to drain water accumulated inside the dam. A water-diverting plate 22 is installed below the drainage pipe 21, allowing users to guide water that has not been discharged from the drainage pipe 21, enabling the device to effectively guide the remaining water flow and improve the reliability of drainage. Multiple sets of siphon boxes 23 are installed on one side of the water-diverting plate 22. Through the installation of the siphon boxes 23, water can be automatically collected and transferred using the siphon principle, realizing water collection and discharge, improving the drainage efficiency of the device. The siphon boxes 23 can suck in the water guided by the water-diverting plate 22 under the action of water level difference, and then process or discharge it for the next step, enhancing the dam's drainage and seepage prevention capabilities.

[0028] Multiple sets of siphon boxes 23 are connected to the siphon box 23 through multiple sets of guide pipes 24. The guide pipes 24 ensure smooth water flow in the siphon box 23, effectively reducing local water accumulation. Each siphon box 23 is equipped with a water distribution block 25, which allows the user to divert the water flow into the siphon box 23, enabling the device to process the water flow more evenly and improving the working stability and reliability of the siphon box 23. Each set of siphon boxes 23 has an integrally formed water outlet pipe 26 at the bottom, which is in contact with the reverse osmosis layer 13. The water outlet pipe 26 allows the water collected in the siphon box 23 to be discharged smoothly, enabling the user to guide the treated water to the reverse osmosis layer 13 for further treatment or discharge, thus improving the practicality of the device.

[0029] The specific usage and function of this embodiment are as follows:

[0030] During the construction of the dam, the foundation foot 12 is first installed in a suitable foundation location. A fixing cone 19 penetrates the reverse seepage layer 13 and extends into the foundation foot 12, ensuring a tight anchorage between the foundation foot 12 and the underlying strata. This enhances the stability of the connection with the foundation and resists settlement and displacement caused by various external forces. The drainage channel 103 on the foundation foot 12 can promptly drain surrounding water, reducing the impact of water flow on the foundation foot 12 and ensuring its stability and durability. Subsequently, the main dam body 11 is constructed on top of the foundation foot 12. Slope protection 16 is installed on both sides of the dam body 11 to reduce rainwater erosion and water flow on the side soil and maintain the stability of the soil on both sides of the dam. A wave wall 17 is set between one of the slope protection 16 and the dam body 11. When encountering large waves, the wave wall 17 blocks the direct impact of waves on the dam body and reduces the impact of wind and waves on the dam structure. A dam crest 14 is set on the top of the dam body 11. A seepage-proof layer 15 is laid below the dam crest 14. The seepage-proof layer 15 is connected to the dam crest 14 through a protective layer 18. To reduce wear on the impermeable layer 15 from the dam crest 14 and extend its service life, an elastic sealing strip 102 is installed between the impermeable layer 15 and the protective layer 18. This utilizes the elasticity and sealing properties of rubber to fill tiny gaps, enhancing the top sealing and seepage prevention effect. The drainage pipe 21 collects and guides the infiltrated water to the lower water-diverting plate 22. The water-diverting plate 22 further guides any remaining water from the drainage pipe 21 to a siphon box 23 on one side. The siphon box 23 utilizes the siphon effect... Based on the principle of suction, the siphon box 23 automatically collects and draws in water guided by the water inlet plate 22 under the action of water level difference, reducing local water accumulation. The water distribution block 25 in the siphon box 23 diverts the incoming water flow, so that the siphon box 23 can process the water flow more evenly, improving the stability and reliability of the operation. Finally, the water outlet pipe 26 integrally formed at the bottom of the siphon box 23 discharges the collected water to the reverse osmosis layer 13, which further processes or discharges the water, thereby effectively realizing the seepage prevention function of the dam and ensuring the stable operation of the dam.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A dam seepage barrier structure, characterized by: The application relates to a dam body (11) provided with a footing (12) below the dam body (11), wherein the footing (12) is connected with the dam body (11) through a reverse osmosis layer (13), the top of the dam body (11) is provided with a dam top (14), the dam top (14) is provided with an anti-seepage layer (15) below the dam top (14), both sides of the dam body (11) are provided with a slope protection (16), one group of the slope protections (16) is provided with a wave protection wall (17) between the slope protection (16) and the dam body (11), and the dam body (11) is provided with a drainage assembly.

2. A dam seepage barrier according to claim 1, wherein: The drainage assembly comprises a drainage pipeline (21) arranged in the dam body (11), and the drainage pipeline (21) is provided with a water guide plate (22) below the drainage pipeline (21).

3. A dam seepage barrier according to claim 2, wherein: One side of the water guide plate (22) is provided with a plurality of siphon boxes (23), and the plurality of siphon boxes (23) are connected with the siphon boxes (23) through a plurality of flow guide pipes (24) respectively.

4. A dam seepage barrier according to claim 3, wherein: The siphon boxes (23) are all provided with water distribution blocks (25), the bottom of the plurality of siphon boxes (23) is integrally formed with water outlet pipes (26), and the plurality of water outlet pipes (26) are in contact with the reverse osmosis layer (13).

5. A dam seepage barrier according to claim 1, wherein: The anti-seepage layer (15) is connected with the dam top (14) through a protection layer (18), and the slope protection (16) is all provided with a drainage groove (101).

6. A dam seepage barrier according to claim 5, wherein: An elastic sealing belt (102) is arranged between the anti-seepage layer (15) and the protection layer (18), and the elastic sealing belt (102) is made of rubber.

7. A dam seepage barrier according to claim 1, wherein: The footing (12) is provided with a water discharge groove (103), and the footing (12) is provided with a plurality of fixing cones (19) below the footing (12), and the top of the plurality of fixing cones (19) penetrates through the reverse osmosis layer (13) and is arranged in the footing (12).