Stepped ecological slope protection embankment

Abstract

The utility model relates to a stepped ecological slope protection embankment which comprises a slope protection embankment body, stepped buffer faces are arranged on the two sides of the slope protection embankment body, and a retention groove is formed in the upper surface of each step of the stepped buffer faces. A damping frame is fixed to the upper surface of the cover plate through an upper annular positioning edge, a lower damping net and an upper damping net wrapping the lower damping net are arranged on the damping frame, a first planting soil layer is arranged on the upper surface of each step except the retention groove, and a first pre-buried groove is formed in the position, below the first planting soil layer, of the slope protection embankment body; prefabricated nutrient soil blocks are pre-buried in the first pre-buried groove, and aquatic plants are planted on the first planting soil layer and root downwards in the prefabricated nutrient soil blocks. The slope protection embankment solves the problems that an existing slope protection embankment is high in nutrient substance overflowing speed and high in use cost, on one hand, attraction to fishes and shrimps is guaranteed, on the other hand, waste of nutrient substances is reduced, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ecological environment protection, in particular to a stepped ecological slope protection embankment. Background Art

[0002] The so-called stepped ecological slope protection embankment provides foraging areas with different water depths and plant configurations for the various birds that inhabit it, and transports nutrients into the foraging areas to attract and feed fish and shrimp for birds to forage.

[0003] For example, CN 210459118 U discloses a stepped ecological slope protection embankment, comprising a slope protection embankment with several layers of structures stacked in a bird habitat water body, aquatic plants planted on the outside of a retaining wall, a plurality of flat steps arranged on the embankment surface along the longitudinal direction of the slope protection embankment from the horizontal embankment top to the embankment foot, water-resistant plants planted on the steps, an open retention pond recessed on the steps for planting aquatic plants and breeding fish and shrimp after water storage, storing nutrients in the dry season, and diffusing the nutrients stored therein into the surrounding water body in the flood season, and a nutrient conveying device arranged in the slope protection embankment for sequentially conveying nutrients from the embankment top to the retention pond with a lowered height for feeding fish and shrimp, so as to achieve the purpose of long-term ecological slope protection. However, there are the following problems during use: when the water level rises and does not cover the retention pond, the nutrients in the retention pond will quickly overflow into the water body and flow away from the slope protection embankment as the water body flows, which is not conducive to the gathering of fish and shrimp, and is not conducive to attracting fish and shrimp for birds to feed on. In order to protect the nutrient concentration at the location of the slope protection embankment, a large amount of nutrients need to be supplemented, resulting in high usage costs. Utility Model Content

[0004] The purpose of the utility model is to provide a stepped ecological slope protection embankment with a reasonable structure and reliable use, so as to solve the problems of fast nutrient dispersion and high use cost of the existing slope protection embankment. On the one hand, it ensures the attraction to fish and shrimp, and on the other hand, it reduces the waste of nutrients and reduces the use cost.

[0005] The technical solution of the utility model is:

[0006] A stepped ecological slope protection embankment comprises a slope protection embankment body, two sides of the slope protection embankment body are respectively provided with stepped buffer surfaces, the upper surface of each step of the stepped buffer surface is provided with a retention groove, and the technical key points are: a cover plate is fixed on the upper edge of the retention groove and a matrix-shaped through hole is provided on the cover plate, an upper annular positioning edge is provided on the edge of the upper surface of the cover plate, a damping frame is fixed inside the upper annular positioning edge, a lower damping net is provided on the damping frame and a upper damping net surrounding the lower damping net is provided, a first planting soil layer is provided on the upper surface of each step except the retention groove, the slope protection embankment body is provided with a first embedded groove at a position below the first planting soil layer, prefabricated nutrient soil blocks are pre-buried in the first embedded groove, aquatic plants are planted on the first planting soil layer and the aquatic plants take root downward in the prefabricated nutrient soil blocks.

[0007] The above-mentioned stepped ecological slope protection embankment has a second planting soil layer on the top surface of the slope protection embankment body and a second pre-buried groove below the second planting soil layer, and the second pre-buried groove is pre-filled with prefabricated nutrient soil blocks.

[0008] In the above-mentioned stepped ecological slope protection embankment, the damping frame consists of a lower horizontal frame and an upper arch frame connected to the lower horizontal frame, the lower damping net is fixed to the bottom surface of the lower horizontal frame, and the upper damping net is fixed to the outer surface of the upper arch frame.

[0009] The above-mentioned stepped ecological slope protection embankment has a nutrient solution injection pipe fixed on the top surface of the slope protection embankment body, the lower end of the nutrient solution injection pipe extends into the slope protection embankment body, and a branch pipeline is connected to each retention tank, the end of the branch pipeline is inserted into the retention tank and fixed with a control valve.

[0010] The beneficial effects of the utility model are:

[0011] 1. A cover plate with through holes is provided on the retention tank, and the upper and lower damping nets are supported by a damping frame above the cover plate. The nutrient solution in the retention tank overflows the cover plate through the through holes under flood conditions, and then slowly overflows into the outer water body through the upper and lower damping nets, thereby prolonging the residence time of nutrients in the slope protection embankment body, attracting fish and shrimp to the slope protection embankment body and staying there for a long time, thus solving the problems of fast nutrient overflow speed and high use cost of the existing slope protection embankment. On the one hand, it ensures the attraction to fish and shrimp, and on the other hand, it reduces the waste of nutrients and reduces the use cost.

[0012] 2. Prefabricated nutrient soil blocks are pre-filled in the first embedded groove to ensure that aquatic plants take root in the prefabricated nutrient soil blocks, ensure the vigorous growth of aquatic plants, and ensure the ecological function of the slope protection embankment.

[0013] 3. The upper arch of the damping frame provides a perch and a place for birds to forage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 A top view of each step in the figure;

[0016] Figure 3 yes Figure 1 Enlarged view of part A in the middle.

[0017] In the figure: 1. retention tank, 2. aquatic plants, 3. control valve, 4. damping frame, 5. second planting soil layer, 6. prefabricated nutrient soil blocks, 7. nutrient solution injection pipe, 8. branch pipeline, 9. slope protection embankment body, 10. prefabricated nutrient soil blocks, 11. cover plate, 12. through hole, 13. upper annular positioning edge, 14. first planting soil layer, 15. lower damping net, 16. upper damping net. DETAILED DESCRIPTION

[0018] The utility model is described in detail according to the accompanying drawings of the specification.

[0019] like Figure 1 to Figure 3 As shown, the stepped ecological slope protection embankment comprises a slope protection embankment body 9, both sides of which are provided with stepped buffer surfaces, and the upper surface of each step of the stepped buffer surface is provided with a retention groove 1.

[0020] Among them, a cover plate 11 is fixed on the upper edge of the retention tank 1 and a matrix-shaped through hole 12 is provided on the cover plate 11, and an upper annular positioning edge 13 is provided on the upper surface edge of the cover plate 11. A damping frame 4 is fixed inside the upper annular positioning edge 13, and a lower damping net 15 that fits the upper surface of the cover plate 11 and an upper damping net 16 that surrounds the lower damping net 15 are provided on the damping frame 4. In this embodiment, the damping frame 4 consists of a lower horizontal frame and an upper arch frame connected to the lower horizontal frame, the lower damping net 15 is fixed to the bottom surface of the lower horizontal frame, and the upper damping net 16 is fixed to the outer surface of the upper arch frame.

[0021] The upper surface of each step is provided with a first planting soil layer 14 except for the retention groove 1. The slope protection embankment body is provided with a first pre-buried groove below the first planting soil layer 14. The first pre-buried groove is pre-filled with prefabricated nutrient soil blocks 10. Aquatic plants 2 are planted on the first planting soil layer 14 and the aquatic plants 2 take root downward in the prefabricated nutrient soil blocks 10. The top surface of the slope protection embankment body 9 is provided with a second planting soil layer 5 and a second pre-buried groove is provided below the second planting soil layer 5. The second pre-buried groove is pre-filled with prefabricated nutrient soil blocks 6.

[0022] A nutrient solution injection pipe 7 is fixed to the top surface of the slope protection embankment body 9, the lower end of the nutrient solution injection pipe 7 extends into the slope protection embankment body 9, and a branch pipeline 8 is connected to each retention tank 1. The end of the branch pipeline 8 is inserted into the retention tank 1 and fixed with a control valve 3 to open and close each branch pipeline 8 as needed.

[0023] Working principle:

[0024] When in use, nutrient solution is added to each branch pipeline 8 through the nutrient solution injection pipe 7, and the nutrient solution is injected into each retention tank 1 through each branch pipeline 8. During the flood season, water enters the retention tank 1, and the nutrient solution is dispersed into the surrounding water body through the matrix through holes 12, the lower damping net 15 and the upper damping net 16 on the cover plate 11. Due to the damping effect, the dispersion speed of nutrients is greatly reduced, and the dispersion time is prolonged, thereby attracting more fish and shrimps to come, and also prolonging the residence time of fish and shrimps, thereby buying more time for birds to forage.

[0025] The above embodiments of the present invention are described in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A stepped ecological slope protection embankment, comprising a slope protection embankment body, two sides of the slope protection embankment body are respectively provided with stepped buffer surfaces, and the upper surface of each step of the stepped buffer surface is provided with a retention groove, characterized in that: A cover plate is fixed on the upper edge of the retention groove and a matrix-shaped through hole is provided on the cover plate. An upper annular positioning edge is provided on the edge of the upper surface of the cover plate. A damping frame is fixed inside the upper annular positioning edge. The damping frame is provided with a lower damping net that fits the upper surface of the cover plate and an upper damping net that surrounds the lower damping net. A first planting soil layer is provided on the upper surface of each step except the retention groove. A first pre-buried groove is provided on the slope protection embankment body at a position below the first planting soil layer. Prefabricated nutrient soil blocks are pre-filled in the first pre-buried groove. Aquatic plants are planted on the first planting soil layer and the aquatic plants take root downward in the prefabricated nutrient soil blocks.

2. The stepped ecological slope protection embankment according to claim 1 is characterized by: A second planting soil layer is provided on the top surface of the slope protection embankment body and a second pre-buried groove is provided below the second planting soil layer, and prefabricated nutrient soil blocks are pre-buried in the second pre-buried groove.

3. The stepped ecological slope protection embankment according to claim 1 is characterized by: The damping frame consists of a lower horizontal frame and an upper arched frame connected to the lower horizontal frame, the lower damping net is fixed to the bottom surface of the lower horizontal frame, and the upper damping net is fixed to the outer surface of the upper arched frame.

4. The stepped ecological slope protection embankment according to claim 1 is characterized by: A nutrient solution injection pipe is fixed on the top surface of the slope protection embankment body, the lower end of the nutrient solution injection pipe extends into the slope protection embankment body, and a branch pipeline is connected to each retention tank. The end of the branch pipeline is inserted into the retention tank and fixed with a control valve.

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