Novel fish pond slope protection structure and fish pond soil solidification method

Abstract

The application provides a new type of fish pond slope protection structure, which comprises a dam body, the dam body is composed of an original soil layer, a sand cushion layer, a mesh cloth layer, a solidified soil layer and a grass cushion layer, the longitudinal section of the dam body is trapezoidal, a step is arranged on the inclined surface of the dam body, a drainage ditch is arranged at the lower base angle of the dam body, the sand cushion layer is covered on the original soil layer, the mesh cloth layer is covered on the sand cushion layer, the solidified soil layer is covered on the mesh cloth layer, and the grass cushion layer is laid on the solidified soil layer and located around the step. The step arranged on the dam body is convenient for the breeder to observe the fish pond and feed the aquatic products; the grass cushion layer plays a role in preventing water and soil loss through vegetation and soil in rainy days, and the increased vegetation makes the whole protection dike more beautiful; the anti-skid and smooth mesh cloth layer is beneficial to the spraying of the solidified soil, so that the solidified soil layer is formed on the mesh cloth layer.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a novel fishpond slope protection structure and a method for solidifying soil in fishponds. Background Technology

[0002] Aquaculture is a production activity involving the breeding, cultivation, and harvesting of aquatic plants and animals under human control. It generally includes the entire process from raising aquatic products to marketable or commercial aquatic products under artificial feeding and management. Fishpond farming is an important part of aquaculture. The dikes around the fishponds are an important part of the fishponds, protecting the water and aquatic products in the pond from loss and facilitating daily production and management. However, existing dikes are easily eroded by rainwater, causing soil loss, and farmed aquatic products are very likely to escape, resulting in significant losses for farmers.

[0003] Furthermore, current policies advocating for the protection and restoration of natural ecosystems explicitly prohibit the use of toxic or hazardous waste as fertilizer or for land reclamation; prohibit the discharge of substandard sludge into arable land, forest land, or green space; and prohibit the discharge of tailings, slag, or substandard dredged sediment that may cause soil pollution into agricultural land. These policies also restrict the construction of large-scale hard paving, artificial mountains, fountains, and other artificial features in green spaces; limit the large-scale use of imported soil to alter the original topography; strictly protect and utilize the original natural vegetation and trees; and strictly restrict the use of non-native plants and artificial landscaping methods in rural greening projects. However, existing pond embankments are typically permanently solidified or hardened with cement, a method that does not align with the current policy's advocacy for the protection and restoration of natural ecosystems.

[0004] Therefore, existing technologies have certain limitations. Summary of the Invention

[0005] This invention is made to solve the above-mentioned problems, and aims to provide a new type of fishpond slope protection structure and a method for solidifying soil in fishponds.

[0006] This invention provides a novel fishpond slope protection structure, including a dam body, which has the following characteristics: The dam body consists of a native soil layer, a sand cushion layer, a mesh layer, a stabilized soil layer, and a grass cushion layer. The longitudinal section of the dam body is trapezoidal, and steps are provided on the sloping surface of the dam body. Drainage ditches are provided at the lower corners of the dam body. The sand cushion layer covers the native soil layer, the mesh layer covers the sand cushion layer, the stabilized soil layer covers the mesh layer, and the grass cushion layer is laid on the stabilized soil layer and located around the steps. The slope ratio of the dam body slope is 1:2.5.

[0007] The novel fishpond slope protection structure provided by this invention also has the following characteristics: the sand cushion layer is composed of medium-coarse sand, gravel, and pebbles.

[0008] The novel fishpond slope protection structure provided by this invention also has the following feature: the mesh layer is geotextile.

[0009] This invention also provides a method for solidifying soil in fishponds, used to produce solidified soil, applicable to any of the above-mentioned novel fishpond slope protection structures, and characterized by the following steps: S1. Add the original soil from the fishpond to the mixing mixer and add 3-6% of the original soil weight of solidifying agent; S2. Start the mixer and mix at room temperature for 5-10 minutes to make the original soil evenly mixed. Then, put the evenly mixed modified soil into the dryer and dry it for at least half an hour or let it air dry for at least 3 days to obtain solidified soil with a moisture content of no more than 25%.

[0010] The soil solidification method for fishponds provided by the present invention also has the following characteristics: by weight ratio, the solidifying agent includes 50% to 60% inorganic minerals of magnesium, 12% to 15% inorganic minerals of calcium, 5% to 10% clay minerals, and 5% to 10% activated alumina.

[0011] Furthermore, the inorganic mineral form of magnesium is magnesium oxide.

[0012] Furthermore, the inorganic mineral form of calcium is calcium carbonate.

[0013] Furthermore, the particle size of the curing agent is less than 120 μm.

[0014] The soil solidification method for fishponds provided by this invention also has the following feature: the mixer is an impeller centrifugal mixer.

[0015] The soil solidification method for fishponds provided by this invention also has the following feature: the dryer is a blower dryer.

[0016] The role and effect of invention According to the present invention, a novel fishpond slope protection structure and a method for solidifying fishpond soil are provided. Steps are installed on the dam body to facilitate observation of the fishpond and feeding of aquatic products by fish farmers. The added grass mat layer prevents soil erosion during rainy days through vegetation and soil, and the increased vegetation makes the entire protective embankment more aesthetically pleasing. The added anti-slip and smooth mesh layer facilitates the spraying of solidified soil, thereby forming a solidified soil layer on the mesh layer. Furthermore, by mixing the solidifying agent with the original fishpond soil, the solidified crystals are embedded in the original fishpond soil, acting as a skeleton, making the original fishpond soil more stable, and causing heavy metals in the original fishpond soil to form more stable precipitates. These precipitates adhere to the surface of the crystal nuclei through ion surface adsorption. Testing shows that the moisture content of the solidified soil treated by the present invention is no more than 25%. Attached Figure Description

[0017] Figure 1This is a schematic diagram of a novel fishpond slope protection structure according to the present invention; Figure 2 This is a front view of the dam slope in a novel fishpond slope protection structure according to the present invention. Attached Figure

[0018] 10. Dam body; 11. Original soil layer; 12. Sand cushion layer; 13. Mesh layer; 14. Stabilized soil layer; 15. Grass cushion layer; 20. Steps; 30. Drainage ditch. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the following embodiments are described in detail with reference to the accompanying drawings. Example

[0020] This embodiment provides a novel fishpond slope protection structure, including a dam body 10. The dam body 10 is composed of an original soil layer 11, a sand cushion layer 12, a mesh layer 13, a solidified soil layer 14, and a grass cushion layer 15. The longitudinal section of the dam body 10 is trapezoidal, and steps 20 are provided on the inclined surface of the dam body 10. A drainage ditch 30 is provided at the lower corner of the dam body 10. The sand cushion layer 12 covers the original soil layer 11, the mesh layer 13 covers the sand cushion layer 12, the solidified soil layer 14 covers the mesh layer 13, and the grass cushion layer 15 is laid on the solidified soil layer 14 and located around the steps 20. The slope ratio of the dam body's 10 slopes is 1:2.5.

[0021] In this embodiment, the sand cushion layer 12 is composed of medium-coarse sand, gravel, and pebbles.

[0022] In this embodiment, the mesh layer 13 is a geotextile.

[0023] This embodiment also provides a method for solidifying soil in fishponds, used to produce solidified soil, applicable to the aforementioned novel fishpond slope protection structure, including the following steps: S1. Add the original soil from the fishpond to the mixing mixer, and add 3-6% of the original soil weight as a solidifying agent. For example, the amount of solidifying agent added is 3%, 5%, or 6% of the original soil weight.

[0024] S2. Start the mixer and mix at room temperature for 5-10 minutes to ensure the original soil is evenly mixed. Then, load the evenly mixed modified soil into a dryer and dry it for at least half an hour or let it air dry for at least 3 days to obtain solidified soil with a moisture content of no more than 25%. For example, air drying for 3 days, 6 days, or 12 days will yield solidified soil with a moisture content of no more than 25%.

[0025] The curing agent, by weight ratio, comprises 50%–60% inorganic magnesium minerals, 12%–15% inorganic calcium minerals, 5%–10% clay minerals, and 5%–10% activated alumina. For example, the curing agent may comprise 50% inorganic magnesium minerals, 12% inorganic calcium minerals, 5% clay minerals, and 5% activated alumina; or, it may comprise 55% inorganic magnesium minerals, 13% inorganic calcium minerals, 8% clay minerals, and 8% activated alumina; or, it may comprise 60% inorganic magnesium minerals, 15% inorganic calcium minerals, 10% clay minerals, and 10% activated alumina. Preferably, the inorganic magnesium mineral is magnesium oxide, and the inorganic calcium mineral is calcium carbonate.

[0026] To achieve better curing results, the curing agent used has a particle size of less than 120 μm. For example, particle sizes of 100 μm, 80 μm, and 110 μm are used.

[0027] The aforementioned mixer is preferably an impeller centrifugal mixer, and the dryer is a blower dryer.

[0028] After several actual tests, the moisture content of the solidified soil treated by the aforementioned method was 20%, 22%, 15%, and 18%, none of which exceeded 25%.

[0029] The principle of this invention: The added solidifying agent is mixed with the original fishpond soil. During this process, a series of physicochemical reactions occur. Magnesium carbonate is formed between ions and mixed together. The solidified crystals are embedded in the original fishpond soil, acting as a framework to make the soil more stable. Tiny magnesium carbonate crystal nuclei formed on the surface of silica sand ions grow into needle-like shapes, simultaneously releasing hydroxide ions. These ions can react with metals in the original fishpond soil to form more stable precipitates, adhering to the surface of the crystal nuclei through ion adsorption. Furthermore, calcium carbonate can disrupt the cellular structure in the original fishpond soil, releasing cellular water that evaporates rapidly, achieving dehydration. The solidified sludge has a stable structure, possesses the characteristics of ordinary soil, and is irreversible. Moreover, this method uses room temperature or low temperature drying, effectively preventing the generation of toxic and harmful gases such as malodorous substances and dioxins.

[0030] The role and effect of the embodiments According to the present invention, a novel fishpond slope protection structure and a method for solidifying fishpond soil are provided. Steps are installed on the dam body to facilitate observation of the fishpond and feeding of aquatic products by fish farmers. The added grass mat layer prevents soil erosion during rainy days through vegetation and soil, and the increased vegetation makes the entire protective embankment more aesthetically pleasing. The added anti-slip and smooth mesh layer facilitates the spraying of solidified soil, thereby forming a solidified soil layer on the mesh layer. Furthermore, by mixing the solidifying agent with the original fishpond soil, the solidified crystals are embedded in the original fishpond soil, acting as a skeleton, making the original fishpond soil more stable, and causing heavy metals in the original fishpond soil to form more stable precipitates. These precipitates adhere to the surface of the crystal nuclei through ion surface adsorption. Testing shows that the moisture content of the solidified soil treated by the present invention is no more than 25%.

[0031] The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A novel fishpond slope protection structure, comprising a dam body, characterized in that: The dam body consists of an original soil layer, a sand cushion layer, a mesh layer, a stabilized soil layer, and a grass cushion layer. The longitudinal section of the dam body is trapezoidal, and steps are provided on the sloping surface of the dam body. Drainage ditches are provided at the lower corners of the dam body. The sand cushion layer covers the original soil layer, the mesh layer covers the sand cushion layer, the stabilized soil layer covers the mesh layer, and the grass cushion layer is laid on the stabilized soil layer and located around the steps. The slope ratio of the dam body slope is 1:2.

5.

2. The novel fishpond slope protection structure according to claim 1, characterized in that: in, The sand cushion layer is composed of medium-coarse sand, gravel, and pebbles.

3. The novel fishpond slope protection structure according to claim 1, characterized in that: in, The mesh layer is geotextile.

4. A method for solidifying soil in fishponds, used to produce solidified soil, applicable to the novel fishpond slope protection structure described in claims 1-3, characterized in that... Includes the following steps: S1. Add the original soil from the fishpond to the mixing mixer, and add a solidifying agent of 3-6% of the weight of the original soil; S2. Start the mixer and mix at room temperature for 5-10 minutes to make the original soil evenly mixed. Then, put the evenly mixed modified soil into the dryer and dry it for at least half an hour or let it air dry for at least 3 days to obtain solidified soil with a moisture content of no more than 25%.

5. The method for solidifying soil in fishponds according to claim 4, characterized in that: By weight, the curing agent comprises 50% to 60% magnesium inorganic minerals, 12% to 15% calcium inorganic minerals, 5% to 10% clay minerals, and 5% to 10% activated alumina.

6. The method for solidifying soil in fishponds according to claim 5, characterized in that: in, The inorganic mineral of magnesium is magnesium oxide.

7. The method for soil stabilization in fishponds according to claim 5, characterized in that: in, The inorganic mineral of calcium mentioned is calcium carbonate.

8. The method for solidifying soil in fishponds according to claim 5, characterized in that: in, The particle size of the curing agent is less than 120 μm.

9. The method for solidifying soil in fishponds according to claim 4, characterized in that: in, The mixer is an impeller centrifugal mixer.

10. The method for soil stabilization in fishponds according to claim 4, characterized in that: in, The dryer is a blower dryer.

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