Slope-to-ladder type anti-scouring purification ecological protection slope

Abstract

The slope-to-ladder type anti-scouring purification ecological protection slope is provided with a slope top purification ditch, a slope shoulder ground protection dam, a slope surface slope-to-ladder and a protection purification slope toe from top to bottom, and the slope top purification ditch is a downwards-concave approximately-U-shaped ecological ditch and comprises a thick sand soil layer, a purification filler layer, a planting soil layer, a water storage layer and a plant layer from bottom to top. The slope surface slope-to-terrace is filled with purification filler through a dense-mesh gabion net, an anti-corrosion timber pile is arranged on the upstream face, a protective purification slope toe is protected through a gabion gabion protection foot, and artificial carbon fiber filler is bound to a gabion gabion steel wire of the gabion gabion steel wire of the gabion gabion protection foot. According to the ecological revetment, the defect that a traditional ecological revetment is poor in purification effect is overcome, non-point source pollution is intercepted and purified, in the aspect of spatial structure characteristics, four structural spaces of a riverside zone are treated, on the basis that the purification effect is enhanced, the stability, the skid resistance and the scouring resistance of the ecological revetment are enhanced, and the ecological revetment is more environmentally friendly. And meanwhile, positive effects on water and soil loss prevention and flood prevention work are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ecological slope protection, in particular to a slope-to-ladder type anti-scouring and purification ecological slope protection. Background Art

[0002] The riverside zone is a dynamic water-land ecosystem on the river bank with a unique spatial structure and ecological service functions. It presents four-dimensional spatial structural characteristics, namely, the mosaic of longitudinal space, the transition of lateral space, the stratification of vertical space and the dynamics of time distribution. It is an important ecological space and an important line of defense for intercepting pollutants. It has important environmental functions such as intercepting pollution, filtering and improving water quality and ecology.

[0003] In recent years, in order to meet the requirements of ecological civilization construction and take into account the stability and ecology of the bank slope, the concept of ecological protection has been gradually applied to the management and construction of artificial slopes. The problems of river and lake water bodies are manifested in the "water", and the root lies in the "bank". Non-point source pollution is an important factor leading to water environmental pollution, especially agricultural non-point source pollution is even more difficult to monitor. The slope-to-terrace anti-scour purification ecological slope protection can intercept and purify agricultural non-point source pollution, and has a prominent role in achieving "water and bank management".

[0004] General ecological slope protection technologies include eco-bags, geocells, gabions, vegetation blocks, fiber blankets, etc., which are mainly slope protection methods that focus on increasing the vegetation area, but often ignore their pollution interception and purification functions, and ignore the interception and purification of surface pollution on the shore. The treatment objects are often limited to the slope surface, ignoring the systematic treatment of the entire shore structure. For this reason, we propose a slope-to-step anti-scour purification ecological slope protection. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides a slope-to-step anti-scour purification ecological slope protection system. The system improves the shortcomings of the poor purification effect of the traditional ecological bank protection system, and at the same time takes into account the characteristics of non-point source pollution, intercepts and purifies it. In terms of spatial structure characteristics, it includes the treatment of the four structural spaces of the riverside shore zone, and the four structural spaces all have a purification effect, rather than just treating the slope surface. On the basis of enhancing the purification effect, its stability, anti-slip and anti-scour properties are enhanced, preventing the scouring and loss of fillers caused by heavy rain and floods, and playing a positive role in preventing soil erosion and flood control.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The slope-to-terrace anti-scour and purification ecological slope protection, including the slope top purification ditch, slope shoulder protection dam, slope surface terrace and protection and purification slope foot, together form a relatively complete integrated riverbank purification system with multiple functions such as safety and stability, adaptability to different slopes, flood retention and drought relief, water conservation, surface runoff interception, increased soil rainfall infiltration, water purification, interception of surface source pollution, establishment of a complete symbiotic ecology, and beautification of the landscape.

[0010] The slope shoulder protection dam is provided with a drainage pipe inside, through which the slope top purification ditch and the slope surface slope conversion ladder are penetrated. The drainage pipe adopts DN50 UPVC pipe. The protection dam is built at the slope shoulder protection dam. The construction is carried out according to different water conservancy requirements. During the construction process, pay attention to the timely installation of the drainage pipe.

[0011] Preferably, a purification filler is provided inside the slope-to-slope ladder, and the purification filler is used to excavate and backfill the slope-to-slope ladder. Anticorrosive wooden piles are driven into the outside of the slope-to-slope ladder, and a wire mesh box is installed inside the slope-to-slope ladder. The anticorrosive wooden piles are φ59mm anticorrosive wooden piles with a length of 1.5m to 2.0m. A single row of anticorrosive wooden piles are closely arranged to fix the slope and stabilize the wire mesh box. They are arranged step by step in a ladder-like manner, which can greatly improve the anti-slip stability and safety of the slope.

[0012] Preferably, after fixing the anticorrosive wooden piles, the wire mesh box is installed. The wire mesh box has a depth of 500mm to 1000mm and a width of 500mm to 800mm. It uses a dense low-carbon galvanized steel wire mesh with a wire diameter of 2.0mm and a mesh size of 10mm. The mesh is assembled and fixed on site, and then the purification filler is filled in layers and sealed and tied.

[0013] Preferably, the excavation and compaction of earthwork is carried out at the foot of the protection and purification slope, and then the gabion stone cage is assembled. The mesh should be unfolded and the folds should be calibrated. The partition net and the mesh box should be spliced ​​at 90 degrees. The corner ends of the mesh box should be connected to the adjacent mesh box. The spacing between the partition net and the mesh box, the upper and lower mesh boxes and the surrounding areas should be less than 0.2m. The spacing between the end net, the mesh cover and the mesh box should be less than 0.1m. The adjacent contact surfaces of the mesh boxes should be evenly connected, and the connection points should not be less than four / m 2 The connecting material should be the same as the mesh cage material. Artificial filler should be used in the mesh box, and the gap should be filled with small-size stones. After the top surface is filled and leveled, the corner ends are fixed with steel tools first, and then the frame lines and the gabion mesh are tied to seal. After completion, the artificial filler is bound, generally with a spacing of 20cm, and a floating ball is fixed on the top of the artificial filler.

[0014] After completing the above work, the vegetation will be planted. The vegetation will be selected from local native plants, and the corresponding aquatic plants will be planted according to the optimal water level of the plants.

[0015] In actual applications, surface runoff first flows through the slope purification ditch on the top of the slope. After sedimentation and purification, the overflow is discharged into the slope surface. The slope shoulder protection dam not only protects the farmland, but also intercepts agricultural non-point source pollution.

[0016] Preferably, the slope is converted into terraces, which has a certain purification effect on nitrogen, phosphorus, COD, etc. in the runoff, prevents pollution from directly entering the river, increases the hydraulic retention time, and then flows through the purification area step by step, and the surface runoff is purified by the purification filler, and finally the slope foot is protected and purified. The protection and purification slope foot uses the biofilm principle to purify the river water. The slope-to-terrace anti-scour purification ecological slope protection described in the utility model can achieve multi-stage purification, enhance the stability and scour resistance of the slope, increase the biodiversity of the slope, and effectively improve the ecological landscape of the river water.

[0017] Preferably, the slope top purification ditch is a concave, approximately U-shaped ecological ditch, including from bottom to top: a 100 mm thick sand layer, a purification filler layer, a planting soil layer, an aquifer, and a plant layer, and a drainage system is set up, which is mainly used to control the migration of terrestrial nitrogen and phosphorus nutrients, drug residues, etc. to water bodies. The sediment, nitrogen and phosphorus nutrients, feed, drugs, etc. carried by surface runoff are blocked by the interception purification ditch system, and most of the sediment, part of the soluble nitrogen and phosphorus nutrients, drugs, etc. are retained in the interception purification ditch. The plants planted in the interception purification ditch can absorb the nitrogen and phosphorus nutrients in the runoff, so as to control the surface runoff and reduce the migration of nitrogen and phosphorus carried by the surface runoff to the water body.

[0018] Preferably, the slope shoulder protection dam not only protects farmland, but also reduces the danger caused by wave heave, and is an interception measure to prevent surface pollution from directly flowing into the river. The material of the protection dam can be designed in specific size and material according to specific water conservancy design requirements. If an ecological dam is adopted, plants can be planted.

[0019] Preferably, the slope-to-terrace transformation adopts slope-to-terrace micro-topography transformation on the existing slope on the basis of basically ensuring the balance of earthwork. The slope-to-terrace transformation can effectively control the occurrence of soil erosion, prolong the hydraulic retention time of non-point source pollution, enhance the reduction of pollution load, and increase the planting area. At the same time, the stepped slope can form a waterfall. Under the action of gravity, water flows freely from high to low, and fully contacts with the atmosphere during the process. The oxygen in the atmosphere dissolves into the water to form dissolved oxygen. Therefore, after the receiving water body receives the energy, the flow state changes from laminar flow to elemental flow, and the liquid surface is stirred to draw in the air for oxygenation, thereby increasing the dissolved oxygen in the water body.

[0020] Preferably, the slope is converted into a terrace using dense-mesh gabions filled with purification fillers, and anti-corrosion wooden piles are set on the water-facing surface to play a role in anti-scouring and multi-level slope stabilization, while preventing the loss of purification fillers caused by flood scouring.

[0021] Preferably, the purification filler is selected from deep phosphorus and nitrogen removal, porosity ≥ 40%, large specific surface area, stable chemical properties, high strength, low breakage rate, and meets the standards of CJ / T43 "Filter Material for Water Treatment". The selected purification filler has the advantages of large specific surface area, good hydrophilicity, high mechanical strength, fast film formation, good treatment effect, and long service life. At the same time, it has good surface wettability, sufficient roughness, large porosity, loose and porous texture, no agglomeration when encountering water, large gas passing ability and low pressure drop. The micropores of the purification filler are suitable as a medium for microbial reproduction, and can continuously reproduce a large number of microorganisms without being easily lost. Combined with the microbial nitrification reaction to remove ammonia nitrogen, it also has a good treatment effect on total nitrogen and organic matter. Analyze the specific structure according to the water quality and configure different purification fillers. Generally, limestone, expanded clay, zeolite, shale, slag, slag, etc. and proprietary composite purification fillers are used. The particle size is 10mm~40mm. The thickness of the filler should be greater than the deepest point that the plant roots can reach, the depth is greater than 500mm, and the width is 500mm~800mm. Depending on the filler and the plant conditions, choose whether to lay a soil cover layer.

[0022] Preferably, aquatic and wetland plants are planted, and willow branches can be planted on the upper part of the slope. The plant roots form a natural interception and filtration system for suspended matter and particulate matter. The biofilm formed by microorganisms attached to the plant roots can adsorb suspended matter and particulate matter, and enhance the removal efficiency of the root filtration system for suspended matter, particulate matter, etc., thereby removing the concentration of solid suspended matter in the water body, organic matter on the suspended matter, etc. At the same time, the plant roots play a positive role in stabilizing the soil structure, improving soil anti-scourability, and preventing and controlling soil erosion.

[0023] Preferably, the protective purification slope foot adopts gabion stone cage foot protection, which has the advantages of stability and ecology. Artificial carbon fiber filler is bound to the steel wire of the gabion stone cage, and a floating device is configured to fix the artificial carbon fiber filler in the water area between the gabion stone cage and the water surface float, and then the biofilm technology is used for purification.

[0024] Preferably, biofilm technology is an in-situ purification technology that uses artificial carbon fiber fillers made of porous polymer materials as a carrier for algae growth and increases the light transmittance of the water body to a certain extent to enhance the life activities of algae. Through their adsorption of nitrogen, phosphorus and other nutrients in the water during growth, the effect of purifying the water body is achieved and the water environment is improved. The specific surface area of ​​artificial carbon fiber fillers is 1000-2000m 2 / g, high mechanical strength, material shape is conducive to the fixation of microorganisms and the shedding of aging biofilms, light weight, good looseness, large contact area with water bodies, strong adsorption capacity, and can adsorb pollutants in the water. Its length is preferably from the binding point to 10cm below the normal water level, and the diameter is 40mm~80mm.

[0025] Preferably, the slope-to-terraced anti-scour purification ecological slope protection is a complete system for stabilizing the slope and purifying pollution through four major structural parts from top to bottom, namely, the slope top purification ditch, the slope shoulder protection dam, the slope surface slope conversion to terraces and the protection and purification slope foot, which enhances its purification function and can adapt to slopes of different slopes.

[0026] Preferably, the antiseptic wood piles can be replaced by wicker weaving or densely packed bamboo boards.

[0027] (III) Beneficial effects

[0028] The slope-to-terraced anti-scour purification ecological slope protection enhances the purification function of the common ecological slope protection form, prevents the scouring of purification fillers by rainstorms and floods, can not only intercept and purify surface source pollution, but also has a certain purification effect on the water body, and can adapt to a variety of water level changes, and can adapt to water level fluctuation areas and areas below normal water level.

[0029] The technical advantages of the slope-to-terrace anti-scour purification ecological slope protection include:

[0030] ① Complete purification system: The four major structural parts of the riverbank slope have been transformed and all have purification functions.

[0031] ②Multiple purification materials: including a variety of purification filter materials, artificial carbon fiber fillers, as well as vegetation, soil, sand, etc.

[0032] ③ Strengthen the slope and prevent the scouring of purification filler by heavy rain: changing the slope into a stepped slope, arranging the anti-corrosion wooden piles in layers and closely, filling the dense mesh boxes with purification filler and the slope shoulder protection dam are all effective measures to enhance the stability of the slope. The dense low-carbon galvanized steel wire mesh filled with purification filler prevents the scouring and loss of the filler caused by heavy rain and floods.

[0033] ④ No secondary pollution, environmentally friendly: The purification process does not contain any chemical agents or microbial agents, and does not cause secondary pollution to the water body.

[0034] The system improves the shortcomings of poor purification effect of traditional ecological revetment, and takes into account the characteristics of non-point source pollution, intercepts and purifies it. In terms of spatial structure characteristics, it includes the treatment of four major structural spaces of the riverside, and the four major structural spaces have a purification effect, rather than just treating the slope. On the basis of enhancing the purification effect, its stability, anti-slip and anti-scouring properties are enhanced, preventing the scouring and loss of fillers caused by heavy rain and floods, and playing a positive role in preventing soil erosion and flood control. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0036] Figure 1 It is a side section view of the utility model of the slope-to-step type anti-scour purification ecological slope protection;

[0037] Figure 2 It is a three-dimensional diagram of the utility model of the slope-to-ladder type anti-scour purification ecological slope protection.

[0038] Legend: 1. Slope top purification ditch; 2. Slope shoulder protection dam; 3. Slope surface slope conversion to stairs; 4. Protection and purification slope foot; 5. Drainage pipe; 6. Purification filler; 7. Wire mesh box; 8. Anti-corrosion wooden piles; 9. Artificial filler. DETAILED DESCRIPTION

[0039] The embodiment of the present application solves the problem of purification and protection in the prior art by providing a stepped anti-scour purification ecological slope protection system. The stepped anti-scour purification ecological slope protection is a complete system for stabilizing the slope and purifying pollution through four major structural parts from top to bottom, namely, the slope top purification ditch, the slope shoulder protection dam, the slope surface stepped and the protection and purification slope foot. It enhances its purification function and can adapt to slopes of different slopes.

[0040] Example 1

[0041] The technical solution in the embodiment of the present application is to solve the above-mentioned purification and protection problems, and the overall idea is as follows:

[0042] like Figure 1 As shown, in response to the problems existing in the prior art, the utility model provides a slope-to-ladder type anti-scour purification ecological slope protection, including a slope top purification ditch 1, a slope shoulder protection dam 2, a slope surface slope-to-ladder 3 and a protective purification slope foot 4, which together form a relatively complete integrated riverbank purification system with multiple functions such as safety and stability, adaptability to different slopes, flood retention and drought relief, water conservation, surface runoff interception, increased soil rainfall infiltration, water purification, interception of surface source pollution, establishment of a complete symbiotic ecology, and beautification of the landscape.

[0043] A drainage pipe 5 is arranged inside the slope shoulder protection dam 2, through which the slope top purification ditch 1 and the slope surface slope conversion ladder 3 are penetrated. The drainage pipe 5 adopts a DN50 UPVC pipe. The protection dam is built at the slope shoulder protection dam 2. The construction is carried out according to different water conservancy requirements. During the construction process, pay attention to the timely installation of the drainage pipe.

[0044] The interior of the slope-to-slope ladder 3 is provided with a purification filler 6, and the purification filler 6 is used to excavate and backfill the slope-to-slope ladder 3. Anticorrosive wood piles 8 are driven into the outside of the slope-to-slope ladder 3. A wire mesh box 7 is installed inside the slope-to-slope ladder 3. The anticorrosive wood piles 8 are φ150mm anticorrosive wood piles 8 with a length of 1.5m to 2.0m. The single row of anticorrosive wood piles 8 are closely arranged to fix the slope and stabilize the wire mesh box 7. They are arranged step by step in a ladder shape, which can greatly improve the anti-slip stability and safety of the slope.

[0045] After fixing the anticorrosive wooden piles 8, the wire mesh box 7 is installed. The wire mesh box 7 has a depth of 500mm to 1000mm and a width of 500mm to 800mm. It is made of dense low-carbon galvanized steel wire mesh with a wire diameter of 2.0mm and a mesh size of 10mm. It is assembled and fixed on site, and then the purification filler 6 is filled in layers and sealed and tied.

[0046] The earthwork is excavated and compacted at four locations at the foot of the protection and purification slope, and then the gabion cage is assembled. The mesh should be unfolded and the folds should be calibrated. The partition net and the mesh box should be spliced ​​at 90 degrees. The corners of the mesh box should be connected to the adjacent mesh box. The distance between the partition net and the mesh box, the upper and lower mesh boxes and the surrounding connection points should be less than 0.2m. The connection distance between the end net, the mesh cover and the mesh box should be less than 0.1m. The adjacent contact surfaces of the mesh boxes should be evenly connected, and the connection points should not be less than four / m 2 The connection material should be the same as the mesh cage material. Artificial filler 9 is used in the mesh box. The gap should be filled with small-size stones. After the top surface is filled and leveled, the corner ends are fixed with steel tools first, and then the frame lines and the gabion mesh are tied to the cover. After completion, the artificial filler 9 is bound. The general spacing is 20cm, and a floating ball is fixed on the top of the artificial filler 9.

[0047] After completing the above work, the vegetation will be planted. The vegetation will be selected from local native plants, and the corresponding aquatic plants will be planted according to the optimal water level of the plants.

[0048] In practical applications, surface runoff first flows through the slope top purification ditch 1 on the slope top, and after sedimentation and purification, the overflow is discharged into the slope surface. The slope shoulder protection dam 2 not only protects the farmland, but also intercepts agricultural non-point source pollution.

[0049] The slope surface is composed of a slope-to-terrace 3, which has a certain purification effect on nitrogen, phosphorus, COD, etc. in the runoff, prevents pollution from directly entering the river, and increases the hydraulic retention time. Then it flows through the purification area step by step, and the surface runoff is purified by the purification filler 6, and finally the protective purification slope foot 4 is used. The protective purification slope foot 4 uses the biofilm principle to purify the river water. The slope-to-terrace anti-scour purification ecological slope protection described in the utility model can achieve multi-stage purification, enhance the stability and scour resistance of the slope, increase the biodiversity of the slope, and effectively improve the ecological landscape of the river water.

[0050] The slope top purification ditch 1 is a concave, approximately U-shaped ecological ditch, which includes, from bottom to top: a 100 mm thick sand layer, a purification filler layer, a planting soil layer, an aquifer, and a plant layer, and a drainage system is set up, which is mainly used to control the migration of terrestrial nitrogen and phosphorus nutrients, drug residues, etc. to water bodies. The sediment, nitrogen and phosphorus nutrients, feed, drugs, etc. carried by surface runoff are blocked by the interception purification ditch system, and most of the sediment, part of the soluble nitrogen and phosphorus nutrients, drugs, etc. are retained in the interception purification ditch. The plants planted in the interception purification ditch can absorb the nitrogen and phosphorus nutrients in the runoff, so as to control the surface runoff and reduce the migration of nitrogen and phosphorus carried by the surface runoff to the water body.

[0051] The slope shoulder protection dam 2 not only protects the farmland, but also reduces the danger caused by wave heave. It is also an interception measure to prevent surface pollution from directly flowing into the river. The material of the protection dam can be designed in specific size and material according to specific water conservancy design requirements. If an ecological protection dam is adopted, plants can be planted.

[0052] The slope-to-terrace 3 adopts a slope-to-terrace micro-topography transformation on the existing slope on the basis of basically ensuring the balance of earthwork. The slope-to-terrace transformation can effectively control the occurrence of soil erosion, prolong the hydraulic retention time of non-point source pollution, enhance the reduction of pollution load, and increase the planting area. At the same time, the stepped slope can form a waterfall. Under the action of gravity, water flows freely from high to low, and fully contacts with the atmosphere during the process. The oxygen in the atmosphere dissolves into the water to form dissolved oxygen. Therefore, after the receiving water body receives the energy, the flow state changes from laminar flow to elemental flow, and the liquid surface is stirred to draw in air for oxygenation, thereby increasing the dissolved oxygen in the water body.

[0053] At the same time, the slope-to-slope ladder 3 uses dense-mesh gabions to fill the purification filler 6, and anti-corrosion wooden piles 8 are set on the water-facing surface to play a role in anti-scouring and multi-level slope stabilization, while preventing the loss of the purification filler 6 caused by flood erosion.

[0054] The purification filler 6 is selected to be a purification filler 6 with deep phosphorus and nitrogen removal, porosity ≥ 40%, large specific surface area, stable chemical properties, high strength, low breakage rate, and meets the standards of CJ / T43 "Filter Material for Water Treatment". The micropores of the purification filler 6 are suitable as a medium for microbial reproduction, and can continuously reproduce a large number of microorganisms without being easily lost. The purification filler 6 has the characteristics of small hydraulic loss, high water absorption rate, good surface wettability, large specific surface area, and large porosity. Combined with the microbial nitrification reaction to remove ammonia nitrogen, it also has a good treatment effect on total nitrogen and organic matter. According to the specific structure of the water quality, different purification fillers 6 are configured. Generally, limestone, ceramsite, zeolite, shale, slag, slag, etc. and proprietary composite purification fillers 6 are often used, with a particle size of 10mm to 40mm. The thickness of the filler should be greater than the deepest point that the plant root system can reach, with a depth greater than 500mm and a width of 500mm to 800mm. According to the filler and plant conditions, choose whether to lay a soil cover layer.

[0055] Plant aquatic and wetland plants, and willow branches on the upper part of the slope. The plant roots form a natural interception and filtration system for suspended matter and particulate matter. The biofilm formed by microorganisms attached to the plant roots can adsorb suspended matter and particulate matter, and enhance the removal efficiency of the root filtration system for suspended matter, particulate matter, etc., thereby removing the concentration of solid suspended matter in the water body, organic matter on the suspended matter, etc. At the same time, the plant roots play a positive role in stabilizing the soil structure, improving soil anti-scourability, and preventing and controlling soil erosion.

[0056] The protective purification slope foot 4 adopts gabion stone cage foot protection, which has the advantages of stability and ecology. Artificial carbon fiber filler is bound to the gabion stone cage steel wire, and a floating device is configured to fix the artificial carbon fiber filler in the water area between the gabion stone cage and the water surface float, and then the biofilm technology is used for purification.

[0057] Biofilm technology is an in-situ purification technology that uses artificial carbon fiber fillers made of porous polymer materials as a carrier for algae growth and increases the light transmittance of water to a certain extent to enhance the life activities of algae. During their growth, they absorb nutrients such as nitrogen and phosphorus in the water to purify the water and improve the water environment. The specific surface area of ​​artificial carbon fiber fillers is 1000-2000m 2 / g, high mechanical strength, material shape is conducive to the fixation of microorganisms and the shedding of aging biofilms, light weight, good looseness, large contact area with water bodies, strong adsorption capacity, and can adsorb pollutants in the water. Its length is preferably from the binding point to 10cm below the normal water level, and the diameter is 40mm~80mm.

[0058] The slope-to-ladder anti-scour purification ecological slope protection is a complete system for stabilizing the slope and purifying pollution through four major structural parts from top to bottom, namely, the slope top purification ditch 1, the slope shoulder protection dam 2, the slope surface slope conversion ladder 3 and the protective purification slope foot 4, which enhances its purification function and can adapt to slopes of different slopes.

[0059] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. The slope-to-step type anti-scour purification ecological slope protection is characterized by: By arranging from top to bottom a slope top purification ditch (1), a slope shoulder protection dam (2), a slope surface slope conversion ladder (3) and a slope foot protection purification (4), The slope top purification ditch (1) is a concave, approximately U-shaped ecological ditch, which includes from bottom to top: a 100 mm thick sand layer, a purification filler layer, a planting soil layer, an aquifer layer, and a plant layer. The slope-to-staircase (3) is filled with a dense-mesh gabion mesh to fill the purification filler (6), and an anti-corrosion wooden pile (8) is set on the water-facing surface. The protective and purification slope foot (4) adopts a gabion stone cage foot guard, and artificial carbon fiber fillers are bound to the gabion stone cage steel wires, and a floating device is configured to fix the artificial carbon fiber fillers in the water area between the gabion stone cage and the water surface float.

2. The slope-to-terrace anti-scour purification ecological slope protection as claimed in claim 1 is characterized by: The slope top purification ditch (1) is provided with a drainage system, and the drainage system comprises a drainage pipe (5) penetrating the slope shoulder protection dam (2).

3. The slope-to-terrace anti-scour purification ecological slope protection as claimed in claim 1 is characterized by: A purification filler (6) is arranged inside the slope-to-slope ladder (3), and the purification filler (6) is used to excavate and backfill the slope-to-slope ladder (3). Anticorrosive wooden piles (8) are driven into the outside of the slope-to-slope ladder (3).

4. The slope-to-terrace anti-scour purification ecological slope protection as claimed in claim 3 is characterized by: A wire mesh box (7) is installed inside the slope-to-ladder conversion device (3); the anticorrosive wood piles (8) are anticorrosive wood piles (8) with a diameter of 150 mm and a length of 1.5 m to 2.0 m; a single row of anticorrosive wood piles (8) are closely arranged; and the anticorrosive wood piles (8) can be replaced by wicker weaving or closely arranged bamboo boards.

5. The slope-to-terrace anti-scour purification ecological slope protection as claimed in claim 4 is characterized by: The steel wire mesh box (7) has a depth of 500 mm to 1000 mm and a width of 500 mm to 800 mm and is made of a dense low-carbon galvanized steel wire mesh with a wire diameter of 2.0 mm and a mesh opening of 10 mm. The mesh is assembled and fixed on site, and then the purification filler (6) is filled in layers and sealed and tied.

6. The slope-to-terrace anti-scour purification ecological slope protection as claimed in claim 2 is characterized by: The drainage pipe (5) is made of a UPVC pipe with a DN50, and a protective dam is constructed at the slope shoulder protective dam (2).

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