Self-inflating expansion filling device for ecological restoration of bank slope and construction method

Abstract

The invention provides a self-inflation expansion filling device for bank slope ecological restoration and a construction method, and belongs to the technical field of hydro-fluctuation belt protection, the self-inflation expansion filling device comprises an inflation vegetation box arranged in a narrow recess in a bank slope, a reservoir and a PVC hose, and the PVC hose connects the inflation vegetation box and the reservoir in series through a connector. The inflatable plant growing box is composed of a plant growing box body, a gas generating box and a filling balloon, a protruding PVC pipe opening is formed in the lower end of the plant growing box body and used for being connected with a PVC hose, a round hole is formed in the middle of the plant growing box body and used for containing the gas generating box, and the PVC pipe opening in the bottom of the plant growing box body is used for being connected with the filling balloon. Low-permeability cotton cloth is arranged in the bottom PVC pipe opening so as to prevent water in the water storage pool from flowing out at a time. The method aims at solving the problems that a slope pit formed by a large amount of excavation is fragile, the exposed slope is not covered by plants, and the local ecological environment is damaged to a great extent.

Description

Technical Field

[0001] The present invention relates to the field of bank slope ecological protection, and in particular to a self-inflating expansion filling device and a construction method for bank slope ecological restoration. Background Art

[0002] The excavation project not only destroyed the original plant layer on the slope, causing the slope rock to be relatively broken, but the long-term exposure of the rock slope led to serious soil erosion, reduced slope stability, slow ecological recovery and other environmental safety problems.

[0003] The existing defects of repairing dents are: (1) The comparative document CN113174971A discloses a structure and method for treating local depressions in the process of ecological restoration of rocky bank slopes, comprising a hollow prefabricated multiple-cast-in-place pile. The hollow prefabricated multiple-cast-in-place pile is made of steel hollow prefabricated. The prefabricated pile foundation skeleton surrounds the entire cement and hollow prefabricated pipe. The pile cross section is circular with a radius of R. A circular bottom grouting hole with a radius of R / 10 is reserved in the center of the cross section. A circular pipe and a side grouting hole with a diameter of R / 20 are reserved at a certain position away from the edge of the cross section. The pile foundation also includes a straight grouting pipe. This pile foundation can reduce costs, is simple to operate and easy to carry out experimental implementation, reduces the number of pile foundations, quickly solidifies soft soil to a standard that can be constructed, can solve the settlement of pile foundations and buildings, and is conducive to the stability of superstructures. However, the bank slope itself has a small amount of water storage capacity, which may lead to low plant survival rate in bank slope ecological restoration projects in arid areas or areas with high evaporation.

[0004] (2) The comparative document CN213773414U discloses a rocky bank slope, wherein a plurality of evenly distributed planting troughs are provided on the slope surface of the rocky bank slope, a nutrient soil layer is provided at the bottom of the planting troughs, a sand and gravel layer is provided on the surface of the nutrient soil layer, plants are provided inside the planting troughs, the roots of the plants are located inside the nutrient soil layer, and the stems of the plants are arranged to pass through the sand and gravel layer and extend outwards, a fixed frame is fixed on the slope surface of the rocky bank slope, a fixed ring is fixed inside the fixed frame and corresponding to the positions of the plurality of planting troughs, a pressure plate is provided inside the fixed ring, a planting hole for the plants to extend out is provided at the center of the surface of the pressure plate, the pressure plate compacts the sand and gravel layer, and a plurality of evenly distributed fixing nails are fixed on the inner side wall of the fixed ring, but the invention is relatively complicated during construction and is difficult to operate on high and steep slopes.

[0005] The slope depressions formed by large-scale excavation are inherently fragile, and the exposed slopes lack plant cover, which greatly damages the local ecological environment. Traditional methods for repairing slope depressions are relatively cumbersome and require a lot of manpower, and the time cost is too high. For some steep slopes or arid areas, the water storage capacity of the slope itself is poor, resulting in poor plant growth on the slope. Summary of the Invention

[0006] The present invention provides a self-inflating filling device and construction method for bank slope ecological restoration, aiming to solve the problem that the slope depressions formed by a large number of excavations are relatively fragile, and the exposed slopes lack plant coverage, which greatly damages the local ecological environment; while the traditional methods for repairing slope depressions are relatively cumbersome and require a lot of manpower, and the time cost is too high. For some steep slopes or arid areas, the water storage capacity of the bank itself is poor, resulting in poor plant growth on the bank.

[0007] In order to achieve the above-mentioned technical features, the purpose of the present invention is achieved as follows: a self-inflating expansion filling device for bank slope ecological restoration, including an inflatable vegetation box, a water reservoir, and a PVC hose arranged in a narrow depression in the bank slope, and the PVC hose connects the inflatable vegetation box and the water reservoir in series through an interface.

[0008] Preferably, the inflatable planting box consists of a planting box, a gas generating box and a filling balloon. A raised PVC pipe port is provided at the lower end of the planting box for connecting a PVC hose. A round hole is provided in the middle of the planting box for placing the gas generating box. The bottom PVC pipe port of the planting box is used to connect the filling balloon. Low-permeability cotton cloth is provided inside the bottom PVC pipe port to prevent water in the reservoir from flowing out at once.

[0009] Preferably, the gas generating box comprises a storage box divided into two independent parts, separated by a detachable partition in the middle, with a destructible anti-corrosion plastic bottom seal at the bottom and a first cover provided at the top, and the two independent parts of the storage box are respectively filled with baking soda and acetic acid.

[0010] Preferably, after the detachable partition is removed, the baking soda and acetic acid in the storage box will be mixed, and after the anti-corrosion plastic bottom seal is destroyed, the baking soda and acetic acid mixture will enter the filling balloon.

[0011] Preferably, baking soda and acetic acid are mixed to generate carbon dioxide gas, which enables the filling balloon to achieve the purpose of expansion.

[0012] Preferably, the filling balloon consists of a sealed balloon, a hardening layer, a textile layer and a second cover.

[0013] Preferably, the hardened layer is composed of cement, sand and small-sized gravel, and can be hardened when exposed to water.

[0014] Preferably, the textile layer is made of a stretchable textile mesh and can expand along with the sealed balloon. It can penetrate water but prevent the substance in the hardened layer from leaking out. A PVC tube is provided under the second cover to connect to the inside of the sealed balloon, and the upper end protrudes to connect to the PVC hose.

[0015] Preferably, the components of the matrix filled in the planting box are respectively: 98 to 100 parts of soil, 5 to 6 parts of organic matter, 3 to 4 parts of ceramsite, and 5 to 6 parts of vermiculite in parts by weight.

[0016] Another aspect of the present invention provides a construction method of a self-inflating filling device for bank slope ecological restoration, comprising the following steps: Step 1: Clean the gravel and loose soil in the narrow depression; Step 2: Place the inflatable planting box on the narrow depression, remove the removable partition and break the anti-corrosion plastic bottom seal, then add the baking soda and acetic acid mixture in the storage box to the filling balloon, and seal the upper part of the gas generating box with the first cover; Step 3: Baking soda and acetic acid react to generate a large amount of carbon dioxide, which expands the filling balloon and fills the narrow concave area; Step 4: After the filled balloon is expanded to its maximum, water is poured on the outside of the filled balloon to harden the hardened layer, forming a closed cavity inside the narrow depression to facilitate water storage; Step 5: After the hardening layer is completely hardened, remove the gas generating box to connect the cavity to the plant box. At the same time, open the upper cover of the filling balloon and connect it to the raised PVC pipe port at the bottom of the inflatable plant box with a PVC hose. Step 6: Set up a water reservoir on the bank slope and connect the inflatable planting box with a PVC hose.

[0017] The present invention has the following beneficial effects: 1. This invention uses an inflatable balloon as a filling medium and places it inside a narrow bank depression. By removing a removable partition, the baking soda and acetic acid pre-encapsulated inside the balloon mix thoroughly, causing a chemical reaction that quickly produces a large amount of carbon dioxide gas. The gas quickly fills the balloon, causing it to expand and adhere tightly to the inner wall of the depression, effectively filling the bank depression. This method significantly reduces the construction difficulty of traditional bank slope repair operations and significantly shortens the operation time.

[0018] 2. The outer layer of the filling balloon in the present invention is made of a highly ductile textile material, which can fit tightly against the inner wall of the narrow concave area of ​​the bank slope during the inflation process, ensuring the uniformity and stability of the filling. The inner layer includes a hardened layer, which is a mixture of cement, fine sand and small-grained gravel. After the inflation is completed, by pouring water on the outside of the textile layer, the water can penetrate into the hardened layer, triggering the hydration reaction of the cement, and gradually solidifying the hardened layer. This process not only firmly fixes the inflatable planting box on the bank slope, but also significantly enhances the soil fixing effect of the bank slope. In addition, the solidification of the hardened layer combined with the ductility of the textile layer further enhances the overall strength and durability of the filling structure.

[0019] 3. In this invention, the external watering process of filling the balloon not only triggers the hydration reaction of the hardened layer, causing it to gradually solidify, but also forms a closed cavity structure within the narrow concave area of ​​the bank slope. This cavity has a water storage function, which can effectively collect and store water.

[0020] 4. In this invention, a low-permeability cotton material is embedded within the PVC pipe opening at the bottom of the planting box. This design allows water from the reservoir to penetrate into the soil within the aerated planting box at a slow and controlled rate. This mechanism maintains a suitable humidity level within the planting box over a long period of time, significantly alleviating the difficulty of traditional bank slopes in storing water due to geological constraints. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 It is a side view of the structural arrangement of the present invention; Figure 2 This is a structural layout diagram of the present invention; Figure 3 (a) and (b) are diagrams of the inflatable planting box of the present invention in the uninflated state and the inflated state.

[0023] Figure 4 Detailed diagram of the planting box (2.1) of the present invention.

[0024] Figure 5 (a) and (b) are structural diagrams of the gas generating box of the present invention in its initial state and after being loaded with baking soda and acetic acid.

[0025] Figure 6 Detail of the balloon filled with the present invention.

[0026] In the figure: bank slope 1, inflatable plant box 2, PVC hose 3, reservoir 4, narrow depression 5; Planting box 2.1, gas generating box 2.2, filling balloon 2.3; Raised PVC pipe opening 2.1.1, bottom PVC pipe opening 2.1.2; Storage box 2.2.1, removable partition 2.2.2, first cover 2.2.3, baking soda 2.2.4, acetic acid 2.2.5, anti-corrosion plastic bottom cover 2.2.6; Inflatable sealed balloon 2.3.1, hardening layer 2.3.2, textile layer 2.3.3, second cover 2.3.4. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] Example 1: like Figures 1 to 6 As shown, a self-inflating expansion filling device and construction method for bank slope ecological restoration include an inflatable vegetation box 2, a water reservoir 4, and a PVC hose 3 arranged in a narrow depression 5 in the bank slope 1. The PVC hose connects the inflatable vegetation box 2 and the water reservoir 4 in series through an interface. An inflatable balloon is used as a filling medium and is placed inside the narrow depression area of ​​the bank slope. By removing the detachable partition, the baking soda and acetic acid pre-encapsulated inside the balloon are fully mixed and chemically reacted to generate a large amount of carbon dioxide gas in a short time. The gas quickly fills the balloon, causing it to expand and fit tightly to the inner wall of the depression area, thereby achieving efficient filling of the bank slope depression. This method significantly reduces the construction difficulty of traditional bank slope repair operations, while greatly shortening the operation time.

[0029] Furthermore, the inflatable plant box 2 is composed of a plant box 2.1, a gas generating box 2.2 and a filling balloon 2.3. A raised PVC pipe opening 2.1.1 is provided at the lower end of the plant box 2.1 for connecting to a PVC hose 3, a circular hole is provided in the middle thereof for placing the gas generating box 2.2, and a PVC pipe opening 2.1.2 at the bottom of the plant box 2.1 is used to connect to the filling balloon 2.3, and a cotton cloth with low permeability is provided inside the bottom PVC pipe opening 2.1.2 to prevent the water in the water reservoir 4 from flowing out all at once. The PVC pipe opening provided at the bottom of the plant box is embedded with a cotton cloth material with low permeability. This design allows the water in the water reservoir to penetrate into the soil in the inflatable plant box at a slow and controllable rate. Through this mechanism, the soil in the plant box can maintain a suitable humidity for a long time, thereby significantly alleviating the problem that traditional slopes are difficult to store water due to geological conditions.

[0030] Furthermore, the gas generating cartridge 2.2 comprises a storage box 2.2.1, which is divided into two independent sections, connected by a removable partition 2.2.2. The bottom of the storage box 2.2.1 is sealed with a destructible, corrosion-resistant plastic bottom 2.2.6, and a first, airtight cover 2.2.3 is located above. The two independent sections of the storage box 2.2.1 are respectively filled with baking soda 2.2.4 and acetic acid 2.2.5. By removing the removable partition, the baking soda and acetic acid, pre-encapsulated in the balloon, are fully mixed and react with each other, quickly generating a large amount of carbon dioxide gas.

[0031] Furthermore, after the detachable partition 2.2.2 is removed, the baking soda 2.2.4 and acetic acid 2.2.5 in the storage box 2.2.1 will be mixed, and the anti-corrosion plastic bottom cover 2.2.6 can be destroyed to allow the mixture of baking soda 2.2.4 and acetic acid 2.2.5 to enter the filling balloon 2.3.

[0032] Furthermore, the baking soda 2.2.4 and acetic acid 2.2.5 are readily available and inexpensive. Their mixture produces a large amount of carbon dioxide gas, which inflates the filling balloon 2.3. The gas rapidly fills the balloon, causing it to expand and adhere tightly to the inner wall of the depressed area, thereby efficiently filling the bank depression. This method significantly reduces the construction difficulty of traditional bank slope repair operations and significantly shortens the operation time.

[0033] Furthermore, the filling balloon 2.3 includes an inflatable sealed balloon 2.3.1, a hardening layer 2.3.2, a textile layer 2.3.3 and a second cover 2.3.4. The hardening layer 2.3.2 is composed of cement, sand and stones with smaller particle size and can be hardened when exposed to water. After the inflation is completed, by pouring water on the outside of the textile layer, the water can penetrate into the hardening layer, triggering the hydration reaction of the cement, and gradually solidifying the hardening layer. This process not only firmly fixes the inflatable planting box on the slope, but also significantly enhances the soil fixing effect of the slope. In addition, the solidification of the hardening layer combined with the ductility of the textile layer further enhances the overall strength and durability of the filling structure.

[0034] Furthermore, the textile layer 2.3.3 is made of a stretchable textile mesh, which can expand together with the sealed balloon 2.3.1, and can penetrate water but prevent the substance in the hardened layer 2.3.2 from leaking out. A PVC tube is provided under the second cover 2.3.4 to connect to the inside of the sealed balloon 2.3.1, and the upper end is raised to facilitate the connection of the PVC hose 3. After the inflation is completed, by pouring water on the outside of the textile layer, the water can penetrate into the hardened layer, triggering the hydration reaction of the cement, and gradually solidifying the hardened layer. This process not only firmly fixes the inflatable planting box on the slope, but also significantly enhances the soil fixing effect of the slope. In addition, the solidification of the hardened layer combined with the ductility of the textile layer further enhances the overall strength and durability of the filling structure.

[0035] Example 2: The inflatable structure and construction method for rapid repair of rocky reverse slopes are used to fill the bank slope depression using the inflatable structure and construction method for rapid repair of rocky reverse slopes. The steps include the following: Step 1: Clean the gravel and loose soil in the narrow depression 5; Step 2: Place the inflatable planting box 2 on the narrow recess 5, remove the removable partition 2.2.2 and break the anti-corrosion plastic bottom cover 2.2.6. Then, the mixture of baking soda 2.2.4 and acetic acid 2.2.5 in the storage box 2.2.1 enters the filling balloon 2.3. At the same time, the upper part of the gas generating box 2.2 is sealed with the first cover 2.2.3. Step 3: Baking soda 2.2.4 and acetic acid 2.2.5 react to generate a large amount of carbon dioxide, causing the filling balloon 2.3 to expand and fill the narrow concavity 5; Step 4: After the filled balloon 2.3 is expanded to its maximum, water is poured onto the outside of the filled balloon 2.3 to harden the hardened layer 2.3.2, forming a closed cavity inside the narrow concave portion for easy water storage; Step 5: After the hardened layer 2.3.2 is completely hardened, remove the gas generating box 2.2 to connect the cavity to the vegetation box 2.1. At the same time, open the second cover 2.3.4 on the filling balloon 2.3 and connect it to the raised PVC pipe port 2.1.1 at the bottom of the inflatable vegetation box 2 using the PVC hose 3; Step 6: Set up a water reservoir 4 on the bank slope 1 and connect the inflatable planting box 2 with a PVC hose 3.

[0036] The present invention and its embodiments are described above. This description is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not depart from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical solution, which should all fall within the scope of protection of the present invention.

Claims

1. A self-inflating filling device for bank slope ecological restoration, characterized in that: The invention comprises an inflatable plant box (2) arranged in a narrow depression (5) in a bank slope (1), a water reservoir (4), and a PVC hose (3). The PVC hose connects the inflatable plant box (2) and the water reservoir (4) in series via an interface.

2. The self-inflating filling device for bank slope ecological restoration according to claim 1, characterized in that: The inflatable plant box (2) consists of a plant box (2.1), a gas generating box (2.2) and a filling balloon (2.3). The lower end of the plant box (2.1) is provided with a raised PVC pipe opening (2.1.1) for connecting to a PVC hose (3). A circular hole is provided in the middle of the plant box (2.1) for placing the gas generating box (2.2). The bottom PVC pipe opening (2.1.2) of the plant box (2.1) is used to connect to the filling balloon (2.3). Low-permeability cotton cloth is provided inside the bottom PVC pipe opening (2.1.2) to prevent water in the water reservoir (4) from flowing out at one time.

3. The self-inflating filling device for bank slope ecological restoration according to claim 2, characterized in that: The gas generating box (2.2) comprises a storage box (2.2.1) divided into two independent parts, the middle of which is separated by a detachable partition (2.2.2), the bottom of which is a destructible anti-corrosion plastic bottom seal (2.2.6), and the upper part is provided with a first cover (2.2.3), and the two independent parts of the storage box (2.2.1) are respectively filled with baking soda (2.2.4) and acetic acid (2.2.5).

4. The self-inflating filling device for bank slope ecological restoration according to claim 3, characterized in that: After the detachable partition (2.2.2) is removed, the baking soda (2.2.4) and the acetic acid (2.2.5) in the storage box (2.2.1) will mix, and after the anti-corrosion plastic bottom seal (2.2.6) is destroyed, the baking soda (2.2.4) and acetic acid (2.2.5) mixture will enter the filling balloon (2.3).

5. The self-inflating filling device for bank slope ecological restoration according to claim 4, characterized in that: The mixture of baking soda (2.2.4) and acetic acid (2.2.5) produces carbon dioxide gas, which causes the balloon (2.3) to expand.

6. The self-inflating filling device for bank slope ecological restoration according to claim 5, characterized in that: The filling balloon (2.3) is composed of a sealed balloon (2.3.1), a hardening layer (2.3.2), a textile layer (2.3.3) and a second cover (2.3.4).

7. The self-inflating filling device for bank slope ecological restoration according to claim 6, characterized in that: The hardened layer (2.3.2) is composed of cement, sand and small-grained gravel, and can be hardened when exposed to water.

8. The self-inflating filling device for bank slope ecological restoration according to claim 6, characterized in that: The textile layer (2.3.3) is made of a stretchable textile mesh and can expand along with the sealed balloon (2.3.1). It is water-permeable but prevents the substance in the hardened layer (2.3.2) from leaking out. A PVC tube is provided under the second cover (2.3.4) to connect to the inside of the sealed balloon (2.3.1), and a protrusion at the upper end is connected to the PVC hose (3).

9. The self-inflating filling device for bank slope ecological restoration according to claim 6, characterized in that: The components of the matrix filled in the planting box (2.1) are respectively: 98 to 100 parts of soil, 5 to 6 parts of organic matter, 3 to 4 parts of ceramsite, and 5 to 6 parts of vermiculite in parts by weight.

10. A construction method for a self-inflating filling device for bank slope ecological restoration according to any one of claims 7 to 9, characterized in that: The following steps are involved: Step 1: Clean the gravel and loose soil in the narrow depression (5); Step 2: Place the inflatable planting box (2) on the narrow depression (5), remove the removable partition (2.2.2) and destroy the anti-corrosion plastic bottom cover (2.2.6), then let the mixture of baking soda (2.2.4) and acetic acid (2.2.5) in the storage box (2.2.1) enter the filling balloon (2.3), and at the same time, use the first cover (2.2.3) to seal the upper part of the gas generating box (2.2); Step 3: Baking soda (2.2.4) and acetic acid (2.2.5) react to generate a large amount of carbon dioxide, causing the filling balloon (2.3) to expand and fill the narrow depression (5); Step 4: After the filled balloon (2.3) is expanded to its maximum, water is poured onto the outside of the filled balloon (2.3) to harden the hardened layer (2.3.2), forming a closed cavity inside the narrow depression for easy water storage; Step 5: After the hardening layer (2.3.2) is completely hardened, remove the gas generating box (2.2) to connect the cavity to the plant box (2.1). At the same time, open the upper cover (2.3.4) of the filling balloon (2.3) and use the PVC hose (3) to connect it to the raised PVC pipe opening (2.1.1) at the bottom of the inflatable plant box (2); Step 6: Set up a water reservoir (4) on the bank slope (1) and connect the inflatable planting box (2) with a PVC hose (3).

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