Impermeable structure of artificial lake wetland

Abstract

The utility model relates to the technical field of hydraulic engineering, and discloses an artificial lake wetland anti-seepage structure which comprises a lake bottom, an HDPE (high-density polyethylene) film is arranged on the upper surface of the lake bottom, an induction layer is arranged on the upper surface of the HDPE film, a modified bentonite waterproof blanket is arranged on the upper surface of the induction layer, geotechnical cloth is arranged on the upper surface of the modified bentonite waterproof blanket, and an anti-seepage layer is arranged on the upper surface of the geotechnical cloth. The upper surface of the geotechnical cloth is provided with improved soil, the upper surface of the improved soil is provided with landscape stones, the upper surface of the improved soil is provided with vegetation, the upper surface of the lakebed is provided with a supporting assembly, the supporting assembly comprises a lakeside, and the lower surface of the lakeside is arranged on the upper surface of the lakebed; and a supporting seat is fixedly connected to the interior of the lakeside. According to the utility model, the HDPE film, the induction layer, the modified bentonite waterproof blanket, the geotechnical cloth, the improved soil, the landscape stone and the vegetation are matched with one another, so that the effects of effectively blocking seawater permeation, maintaining a proper water quality index and forming a stable ecological system are achieved.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to an anti-seepage structure for artificial lake wetlands. Background Technology

[0002] In coastal areas such as Guangdong, the construction of artificial lakes and wetlands often results in excessively high salinity and alkalinity of the lake water due to seawater backflow, which harms the aquatic ecosystem. Traditional single-layer HDPE membrane anti-seepage solutions are not ideal in tidal sections and areas with high groundwater levels, and cannot effectively block the infiltration of groundwater.

[0003] A search revealed a Chinese patent publication number, CN211172110U, which discloses an artificial lake seepage prevention structure. The structure includes a lake bottom and a first coarse sand layer on the lake bottom. A seepage-proof membrane is provided on the first coarse sand layer. A diversion component for preventing groundwater from damaging the seepage-proof membrane is provided between the first coarse sand layer and the seepage-proof membrane. The diversion component is connected to a water storage tank via a water pump. Connectors for buffering and connecting the diversion components are installed between each diversion component. A seepage-proof membrane protective layer is provided on the seepage-proof membrane. Planting soil is laid on the seepage-proof membrane protective layer, and aquatic plants are planted on the planting soil. Landscape stones with compacted planting soil are placed between the aquatic plants.

[0004] The above-mentioned utility model can not only protect the geomembrane and drain groundwater in a timely manner, but also improve the ecological environment of the artificial lake. However, in actual use, the above-mentioned device has the following problems: the geomembrane structure is difficult to cope with seawater back seepage, the single-layer geomembrane system is easily damaged and fails, the water salinity is difficult to control, and the ecosystem is difficult to maintain itself. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an artificial lake wetland seepage prevention structure, which aims to improve the problems that seepage prevention structures are unable to cope with seawater backflow, single-layer seepage prevention systems are easily damaged and fail, water salinity and alkalinity are difficult to regulate, and the ecosystem is unable to maintain itself.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an artificial lake wetland seepage prevention structure, comprising a lake bottom, an HDPE membrane disposed on the upper surface of the lake bottom, a sensing layer disposed on the upper surface of the HDPE membrane, a modified bentonite waterproof blanket disposed on the upper surface of the sensing layer, a geotextile disposed on the upper surface of the modified bentonite waterproof blanket, improved soil disposed on the upper surface of the geotextile, landscape stones disposed on the upper surface of the improved soil, vegetation disposed on the upper surface of the improved soil, and a support component disposed on the upper surface of the lake bottom.

[0007] The above technical solutions effectively block seawater infiltration, maintain suitable water quality indicators, and form a stable ecosystem, thereby solving the problem of seawater infiltration in artificial lake wetlands in coastal areas and realizing a virtuous cycle of the ecosystem.

[0008] As a further description of the above technical solution:

[0009] The support assembly includes a lakeside, the lower surface of which is disposed on the upper surface of the lake bottom, and a support base is fixedly connected inside the lakeside.

[0010] The above technical solution serves to connect the detector and the sensing layer by placing it on the upper surface of the lake bottom, and also provides stable support for the support base.

[0011] As a further description of the above technical solution:

[0012] A fixed cylinder is fixedly connected inside the support base, and a first pressing rod is slidably connected inside both the support base and the fixed cylinder.

[0013] Through the above technical solution: the support base provides stable support for the fixed cylinder, and the first pressing rod slides inside the support base and the fixed cylinder, thereby limiting the position of the first pressing rod.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the first pressing rod is slidably connected to a first connecting block, one end of a spring is fixedly connected inside the first connecting block, and the other end of the spring is fixedly connected to a second connecting block.

[0016] Through the above technical solution, the first connecting block and the second connecting block exert a squeezing and compressing effect on the spring, while the spring also plays a role in resetting the first connecting block and the second connecting block.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the second connecting block is slidably connected to a second pressing rod, and the outer wall of the second pressing rod is slidably connected to the inside of the support base and the fixed cylinder.

[0019] The above technical solution allows the second pressing rod to slide inside the support base and the fixed cylinder, thereby limiting its position. The second connecting block then drives the second pressing rod to move.

[0020] As a further description of the above technical solution:

[0021] Both the outer walls of the first connecting block and the second connecting block are fixedly connected to limit plates, and the inner walls of the limit plates are rotatably connected to fixed columns.

[0022] The above technical solution involves the internal rotation of the limiting plate against the outer wall of the fixed column, while the fixed column simultaneously limits the movement of the limiting plate.

[0023] As a further description of the above technical solution:

[0024] Both ends of the fixed column are fixedly connected to the inside of the fixed cylinder, and the outer wall of the limiting plate is slidably connected to the movable cylinder.

[0025] The above technical solution provides stable support for the fixed column and limits the movement of the moving cylinder through the limiting plate.

[0026] As a further description of the above technical solution:

[0027] The outer wall of the movable cylinder is slidably connected to the inside of the support base, and a detector is fixedly connected to the outer wall of the movable cylinder.

[0028] The above technical solution provides the following: the support base assists in limiting the movement of the cylinder, and the detector enables real-time monitoring and rapid data feedback, providing decision-makers with timely and accurate information to take necessary maintenance or repair measures.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the HDPE membrane, sensing layer, modified bentonite waterproof blanket, geotextile, improved soil, landscape stone and vegetation work together to effectively block seawater infiltration, maintain suitable water quality indicators and form a stable ecosystem.

[0031] 2. In this utility model, through the cooperation of the detector, the moving cylinder, the limiting plate, the spring, the connecting block, the pressing rod, and the fixing column, the seepage prevention structure of the artificial lake wetland can be monitored in real time. This ensures that potential leakage problems are detected at the first time and that data is quickly fed back to provide decision-makers with timely and accurate information so that necessary maintenance or repair measures can be taken. Moreover, it can be installed and put into use quickly and accurately under different conditions. Attached Figure Description

[0032] Figure 1 This is a perspective view of an artificial lake wetland seepage prevention structure proposed in this utility model;

[0033] Figure 2 This is a partial structural diagram of the support base of an artificial lake wetland seepage prevention structure proposed in this utility model;

[0034] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the lakebed of an artificial lake wetland seepage prevention structure proposed in this utility model;

[0035] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the fixed cylinder of the artificial lake wetland seepage prevention structure proposed in this utility model.

[0036] Legend:

[0037] 1. Lake bottom; 2. HDPE membrane; 3. Sensing layer; 4. Modified bentonite waterproof blanket; 5. Geotextile; 6. Improved soil; 7. Landscape stone; 8. Vegetation; 9. Lakeside; 10. Support base; 11. Fixing cylinder; 12. First pressing rod; 13. First connecting block; 14. Spring; 15. Second connecting block; 16. Second pressing rod; 17. Limiting plate; 18. Fixing column; 19. Moving cylinder; 20. Detector; 21. Support assembly. Detailed Implementation

[0038] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] Reference Figure 2 and Figure 3 An embodiment of this utility model provides: an artificial lake wetland seepage prevention structure, including a lake bottom 1, an HDPE membrane 2 disposed on the upper surface of the lake bottom 1, a sensing layer 3 disposed on the upper surface of the HDPE membrane 2, a modified bentonite waterproof blanket 4 disposed on the upper surface of the sensing layer 3, a geotextile 5 disposed on the upper surface of the modified bentonite waterproof blanket 4, improved soil 6 disposed on the upper surface of the geotextile 5, landscape stones 7 disposed on the upper surface of the improved soil 6, vegetation 8 disposed on the upper surface of the improved soil 6, and a support component 21 disposed on the upper surface of the lake bottom 1.

[0040] Specifically, by selecting high-strength, wear-resistant, and corrosion-resistant geotextile 5, its long-term stability and durability are ensured. The HDPE membrane 2, with its extremely low permeability coefficient, effectively prevents water from seeping through the membrane layer, thus maintaining the water volume of the artificial lake and preventing water loss. The modified bentonite waterproofing blanket 4, with its excellent flexibility, adapts to various complex terrains and base deformations. Whether on flat ground, slopes, or irregularly shaped artificial lakes and wetlands, the bentonite waterproofing blanket adheres tightly, minimizing leakage. The sensing layer 3, combined with the detector 20, collects parameters such as humidity and water level inside the seepage-proof structure in real time, thereby determining whether leakage is present. The roots and branches of the vegetation 8 slow down water flow, reducing the impact of water on the seepage-proof structure and helping to extend its service life. A drainage layer is installed in the middle of the sensing layer 3.

[0041] Reference Figure 1 and Figure 4 The support component 21 includes a lakeside 9, the lower surface of which is disposed on the upper surface of the lake bottom 1, and a support base 10 is fixedly connected inside the lakeside 9; a fixed cylinder 11 is fixedly connected inside the support base 10, and a first pressing rod 12 is slidably connected inside both the support base 10 and the fixed cylinder 11.

[0042] Specifically, the lakeside 9 provides stable support to the support base 10, and the support base 10 provides fixed support to the fixed cylinder 11. The first pressing rod 12 slides inside the support base 10 and the fixed cylinder 11, thereby limiting the position of the first pressing rod 12.

[0043] Reference Figure 4 The outer wall of the first pressing rod 12 is slidably connected to the first connecting block 13. One end of the spring 14 is fixedly connected inside the first connecting block 13, and the other end of the spring 14 is fixedly connected to the second connecting block 15. The outer wall of the second connecting block 15 is slidably connected to the second pressing rod 16, and the outer wall of the second pressing rod 16 is slidably connected inside the support base 10 and the fixed cylinder 11. The outer walls of the first connecting block 13 and the second connecting block 15 are both fixedly connected to the limit plate 17, and the inside of the limit plate 17 is rotatably connected to the fixed column 18. Both ends of the fixed column 18 are fixedly connected inside the fixed cylinder 11. The outer wall of the limit plate 17 is slidably connected to the movable cylinder 19. The outer wall of the movable cylinder 19 is slidably connected to the inside of the support base 10, and the outer wall of the movable cylinder 19 is fixedly connected to the detector 20.

[0044] Specifically, by pressing the first pressing rod 12 and the second pressing rod 16, which slide inside the support base 10 and the fixed cylinder 11, the first connecting block 13 and the second connecting block 15 are driven to compress the spring 14. The first connecting block 13 and the second connecting block 15 drive the limiting plate 17 to rotate on the outer wall of the fixed column 18. The fixed cylinder 11 provides fixed support for the fixed column 18, and the fixed column 18 limits the limiting plate 17. By driving the detector 20, the moving cylinder 19 slides inside the support base 10. The support base 10 provides auxiliary limiting for the moving cylinder 19. At the same time, the limiting plate 17 slides inside the moving cylinder 19, thus fixing the moving cylinder 19. The detector 20 can periodically test the water quality and monitor leakage, thereby enabling timely repair of damage and maintaining suitable water quality indicators, which facilitates maintenance and management.

[0045] Working principle: When this structure is needed, the HDPE membrane 2 is hot-melt welded, the modified bentonite waterproof blanket 4 is overlapped and laid, the geotextile 5 is laid through, and the joints are double-sealed, thereby effectively blocking seawater penetration. The soil is improved by layer filling 6, salt-tolerant vegetation 8 is planted, and purification organisms are introduced to form a stable ecosystem.

[0046] By pressing the first pressing rod 12 and the second pressing rod 16, which slide inside the support base 10 and the fixed cylinder 11, the first pressing rod 12 and the second pressing rod 16 drive the first connecting block 13 and the second connecting block 15 to compress the spring 14. At the same time, the first connecting block 13 and the second connecting block 15 drive the limiting plate 17 to rotate on the outer wall of the fixed column 18. This drives the detector 20, which in turn drives the moving cylinder 19 to slide inside the support base 10. Simultaneously, the limiting plate 17 slides inside the moving cylinder 19, thus fixing it in place. The detector 20 can periodically test the water quality, monitor leakage, repair damage in a timely manner, maintain suitable water quality indicators, and facilitate maintenance and management. This mechanism can not only effectively block seawater infiltration, maintain suitable water quality indicators, and form a stable ecosystem, but also realize real-time monitoring of the seepage prevention structure of artificial lake wetlands. It can ensure that potential leakage problems are detected at the first time and quickly feed back data, providing decision-makers with timely and accurate information so that necessary maintenance or repair measures can be taken.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An artificial lake wetland anti-seepage structure comprising a lake bottom (1), characterized in that: The upper surface of the lake bottom (1) is provided with an HDPE film (2), the upper surface of the HDPE film (2) is provided with an induction layer (3), the upper surface of the induction layer (3) is provided with a modified bentonite waterproof blanket (4), the upper surface of the modified bentonite waterproof blanket (4) is provided with a geotextile (5), the upper surface of the geotextile (5) is provided with improved soil (6), the upper surface of the improved soil (6) is provided with landscape stones (7), the upper surface of the improved soil (6) is provided with vegetation (8), and the upper surface of the lake bottom (1) is provided with a support assembly (21).

2. The artificial lake wetland anti-seepage structure according to claim 1, characterized in that: The support assembly (21) comprises a lake edge (9), and the lower surface of the lake edge (9) is arranged on the upper surface of the lake bottom (1), and the inner portion of the lake edge (9) is fixedly connected with a support seat (10).

3. The artificial lake wetland anti-seepage structure according to claim 2, characterized in that: The inner portion of the support seat (10) is fixedly connected with a fixed cylinder (11), and the inner portions of the support seat (10) and the fixed cylinder (11) are slidably connected with a first pressing rod (12).

4. The artificial lake wetland anti-seepage structure according to claim 3, characterized in that: The outer wall of the first pressing rod (12) is slidably connected with a first connecting block (13), one end of the first connecting block (13) is fixedly connected with a spring (14), and the other end of the spring (14) is fixedly connected with a second connecting block (15).

5. The artificial lake wetland anti-seepage structure according to claim 4, characterized in that: The outer wall of the second connecting block (15) is slidably connected with a second pressing rod (16), and the outer wall of the second pressing rod (16) is slidably connected in the inner portions of the support seat (10) and the fixed cylinder (11).

6. The artificial lake wetland anti-seepage structure according to claim 4, characterized in that: The outer walls of the first connecting block (13) and the second connecting block (15) are fixedly connected with a limiting plate (17), and the inner portion of the limiting plate (17) is rotatably connected with a fixed column (18).

7. The artificial lake wetland anti-seepage structure according to claim 6, characterized in that: Both ends of the fixed column (18) are fixedly connected in the inner portion of the fixed cylinder (11), and the outer wall of the limiting plate (17) is slidably connected with a moving cylinder (19).

8. The artificial lake wetland anti-seepage structure according to claim 7, characterized in that: The outer wall of the moving cylinder (19) is slidably connected in the inner portion of the support seat (10), and the outer wall of the moving cylinder (19) is fixedly connected with a detector (20).

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