CN112112172A - Ecological bank protection system of sectional type interception water purification - Google Patents
Ecological bank protection system of sectional type interception water purification Download PDFInfo
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- CN112112172A CN112112172A CN202010928422.0A CN202010928422A CN112112172A CN 112112172 A CN112112172 A CN 112112172A CN 202010928422 A CN202010928422 A CN 202010928422A CN 112112172 A CN112112172 A CN 112112172A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/001—Methods, systems, or installations for draining-off sewage or storm water into a body of water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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Abstract
The invention relates to a sectional type intercepting and purifying water ecological slope protection system which comprises rainwater intercepting and collecting ecological ditches and a rainwater centralized purification system, wherein the rainwater centralized purification system is formed by an ecological retaining wall enclosure, a plurality of rainwater intercepting and collecting ecological ditches are arranged on a slope in a sectional mode at certain intervals, the rainwater centralized purification system is arranged at the lower end of the slope, perforated drain pipes are arranged at the bottoms of the rainwater intercepting and collecting ecological ditches and are connected with drain pipes of the rainwater centralized purification system, and intercepting and collecting runoff rainwater is drained to the rainwater centralized purification system. The beneficial effects are as follows: the sectional type intercepting and water purifying ecological slope protection system can realize the functions of rainwater interception, rainwater collection, rainwater purification, water and soil conservation and ecological restoration and simultaneously improves the utilization rate of surface runoff rainwater.
Description
Technical Field
The invention relates to the field of ecological purification of intermontane rainwater, in particular to a sectional type intercepting and purifying water ecological slope protection system.
Background
In recent years, with large-scale engineering construction and mining, a large number of geotechnical slopes which cannot recover vegetation are formed. Traditional slope engineering reinforcement measures mostly adopt methods such as stone building and concrete spraying, and destroy the self-recovery function of the ecological environment. With the enhancement of the awareness of people on the protection of the ecological environment, the ecological protection and ecological restoration slope protection technology is gradually applied to engineering construction.
Along with the development of economy, especially in cities, the application of stone-laying revetments and concrete revetments is relatively reduced, more and more ecological revetments landscape appears, the revetments mostly adopt cascade retaining walls to form a vegetation layer similar to a terrace, have certain ornamental value, are more excellent than the concrete revetments from the perspective of plant greening, but lose two important functions of water and soil conservation and ecological self-restoration.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a sectional type water interception and purification ecological slope protection system which can realize the functions of rainwater interception, rainwater collection, rainwater purification, water and soil conservation and ecological restoration and simultaneously improve the utilization rate of surface runoff rainwater.
The invention provides a sectional type intercepting and purifying water ecological slope protection system, which adopts the technical scheme that:
the utility model provides an ecological bank protection system of sectional type interception water purification, includes that the rainwater dams and collects ecological ditch and rainwater and concentrates clean system, and the rainwater is concentrated clean system and is enclosed to construct by ecological retaining wall and form, and the interval certain distance segmentation sets up a plurality of rainwater on the slope and dams and collect ecological ditch, the rainwater is concentrated clean system and is set up the low side on the slope, the rainwater dams and collects the bottom of ecological ditch and be provided with the perforation drain pipe, the perforation drain pipe with clean system's drainage pipe connection is concentrated to the rainwater, will dam and collect the runoff rainwater drainage and arrive clean system is concentrated to the rainwater.
Preferably, the upper width of the rainwater intercepting and collecting ecological ditch is 0.6-1.0 m.
Preferably, the rainwater intercepting and collecting ecological ditch also comprises a ditch plant layer, a rainwater drainage edge, a rainwater flow-blocking angle, a ditch stone layer, a ditch planting soil layer, a ditch gravel layer and a gravel cushion layer; when rainwater is collected ecological ditch through rainwater damps, is dammed by the recess that the ditch building stones of laying layered, and the water that is detained in the recess seeps down rapidly, filters through ditch gravel bed course, flows into the ditch gravel layer, and it purifies to draw into rainwater centralized purification system through ditch gravel layer perforation drain pipe.
Preferably, the plants of the ditch plant layer are selected from local plants which are water-loving, yin-tolerant and developed in root system; a circular chamfer is arranged at the high-level end of the rainwater interception and collection ecological ditch to form a rainwater drainage edge, and surface runoff rainwater passing through the circular chamfer is guided into the rainwater interception and collection ecological ditch;
the rainwater that collects the ecological ditch low-level end at rainwater damps is equipped with the rainwater that is perpendicular to slope and hinders the water conservancy diversion angle, has increased the rainwater and has dammed the water capacity of collecting the ecological ditch, prevents to flow into rainwater and damps the rainwater in collecting the ecological ditch and flow out rapidly.
Preferably, a layer of stone is laid on the ditch planting soil to form a ditch stone layer, so that the scouring force of rainwater runoff is dispersed, the lower layer planting soil is protected, and the water and soil loss of the planting soil caused by rainwater scouring is reduced; mixing wormcast with the ditch planting soil;
the ditch gravel layer is arranged below the planting soil layer, and 5-10mm gravels are selected;
the gravel cushion layer is arranged below the gravel layer.
Preferably, the hole pitch of the perforated drain pipe is less than 1.5m, and the hydraulic gradient is more than 0.5%; the diameter of the perforated drain pipe is more than 0.1 m; the pipe material of the perforated drain pipe is a PVC pipe or a flexible perforated pipe; the small holes on the perforated drain pipe are smaller than the minimum side length of the broken stone.
Preferably, the rainwater centralized purification system comprises a purified plant layer, a purified stone layer, a purified planting soil layer, a filter layer, a transition layer, a drainage pipe and an overflow pipe, rainwater is collected by a rainwater intercepting and collecting ecological ditch and is led into the purification system for purification in a primary purification centralized manner, and the rainwater permeates into the drainage layer from the purified plant layer through filtration; one part of the purified rainwater permeates the ground, and the other part of the purified rainwater does not permeate the ground is discharged into rivers and lakes from an overflow pipe arranged above the drainage layer to be used as a water supply source for the rivers and lakes, or the residual purified water is introduced into a municipal pipe network to be used as landscape greening water.
Preferably, the plants of the purification plant layer are selected from native plants with water preference, yin tolerance and developed root systems; the plant is planted and covers the whole surface of the stone layer and is evenly arranged.
A layer of stones is laid on the purified planting soil to form a purified stone layer, so that the scouring force of rainwater runoff is effectively dispersed, the lower layer of purified planting soil is effectively protected, and the water and soil loss of the purified planting soil caused by rainwater scouring is reduced;
the purifying planting soil layer is arranged below the purifying stone layer; purifying the mixed wormcast in the planting soil;
the filter layer is arranged below the planting layer, the surface of the filter material of the filter layer is horizontal, and water flow can completely invade the filter layer to prevent the filter material from being damaged by scouring;
the transition layer is arranged below the filter layer;
the drainage layer is arranged below the filter layer.
Preferably, the filter material of the filter layer is graded filter material, the depth is 0.6m-1m, and the coefficient of the filter material is 50-200 mm/h;
the width of the transition layer is not less than 0.15m, and sand or coarse sand is selected as a filler;
the thickness of the drainage layer is more than 0.2 m.
Preferably, one end of the water outlet of the drain pipe is arranged in the middle of the stone paving layer, and the other end of the water outlet of the drain pipe is connected with a perforated drain pipe in the rainwater intercepting and collecting ecological ditch;
the overflow pipe is arranged above the drainage layer.
The implementation of the invention comprises the following technical effects:
according to the sectional type intercepting and purifying ecological slope protection system, a plurality of transverse rainwater intercepting and collecting ecological ditches are arranged on the slope and used for intercepting and collecting runoff rainwater. A rainwater centralized purification system is arranged at the lower end of the slope and close to the water body, and collected rainwater is centralized at the position for rainwater purification and reutilization, so that rainwater with pollutants is effectively reduced and drained into rivers and lakes. The rainwater intercepting and collecting ecological ditch effectively disperses the scouring force of surface rainwater runoff, reduces the water quantity, and rapidly increases the drainage pressure for a drainage pipe network and rivers and lakes. The utilization rate of surface runoff rainwater is improved while the functions of rainwater interception, rainwater collection, rainwater purification, water and soil conservation and ecological restoration can be realized.
Drawings
Fig. 1 is a schematic structural view of a sectional type intercepting and purifying water ecological slope protection system according to an embodiment of the invention.
Fig. 2 is a schematic structural view of an ecological rainwater intercepting and collecting ditch.
Fig. 3 is a schematic structural diagram of a rainwater centralized purification system.
In the figure: 1. rainwater is intercepted and collected into an ecological ditch; 10. a trench plant layer; 11. a rainwater drainage edge; 12. a rainwater flow-blocking angle; 13. paving the stone in the ditch; 14. planting soil in a ditch; 15. a trench gravel layer; 16. a gravel cushion layer; 17. a perforated drain pipe; 2. a rainwater centralized purification system; 20. purifying the plant layer; 21. purifying the stone layer; 22. purifying the planting soil layer; 23. a filter layer; 24. a transition layer; 25. a drainage layer; 26. a drain pipe; 27. an overflow pipe; 3. ecological barricade.
Detailed Description
The present invention will be described in detail below with reference to embodiments and drawings, it being noted that the described embodiments are only intended to facilitate the understanding of the present invention, and do not limit it in any way.
Referring to fig. 1, the sectional type intercepting and water purifying ecological slope protection system provided by the embodiment includes an rainwater intercepting and collecting ecological ditch 1 and a rainwater centralized purification system 2, wherein the rainwater centralized purification system 2 is surrounded by an ecological retaining wall 3, a plurality of rainwater intercepting and collecting ecological ditches 1 are arranged on a slope in a sectional manner at certain intervals, the rainwater centralized purification system 2 is arranged at the low end of the slope, a perforated drain pipe 17 is arranged at the bottom of the rainwater intercepting and collecting ecological ditch 1, the perforated drain pipe 17 is connected with a drain pipe 26 of the rainwater centralized purification system 2, and intercepting and collecting runoff rainwater is drained to the rainwater centralized purification system 2. In this embodiment, be equipped with a plurality of horizontal rainwater on the slope and cut off and collect ecological ditch 1 for cut off and collect the runoff rainwater. At the low end of the slope, a rainwater centralized purification system 2 is arranged at a position close to the water body, and the collected rainwater is centralized at the position to be purified and recycled, so that the rainwater with pollutants is effectively reduced and drained into rivers and lakes. The one rainwater intercepting and collecting ecological ditch 1 effectively disperses the scouring force of surface rainwater runoff, and reduces the drainage pressure of the water flow which is rapidly increased to the drainage pipe 26 net and rivers and lakes. Specifically, the rainwater intercepting and collecting ecological ditch 1 is 0.6-1.0m wide on the ground and is transversely and sequentially arranged from the near water end to the far water end. The arrangement distance can be adjusted according to the field size.
Referring to fig. 2, the rainwater intercepting and collecting ecological ditch 1 comprises a ditch plant layer 10, a rainwater drainage edge 11, a rainwater flow-blocking angle 12, a ditch stone layer 13, a ditch planting soil layer 14, a ditch gravel layer 15, a gravel cushion layer 16 and a perforated drain pipe 17; when rainwater is collected ecological ditch 1 through rainwater damps, the recess that is laid ditch building stones layer 13 is dammed, and the water that is detained in the recess seeps down rapidly, filters through ditch gravel bed course, flows into the ditch gravel layer, purifies in leading into rainwater centralized purification system 2 through ditch gravel layer perforation drain pipe 17 drainage.
Specifically, the plants in the ditch plant layer 10 are mainly selected from local plants which are water-loving, yin-tolerant and developed in root systems. Collect ecological ditch 1 high-order end at rainwater damming and be equipped with circular chamfer and form rainwater drainage limit 11, will lead to the rainwater through the surface runoff rainwater at this place and damps and collect ecological ditch 1 in, the effectual rainwater collection volume that has increased. A rainwater flow resisting angle 12 vertical to the slope is arranged at the low end of the rainwater intercepting and collecting ecological ditch 1. Not only the water capacity of the rainwater intercepting and collecting ecological ditch 1 is increased, but also rainwater flowing into the rainwater intercepting and collecting ecological ditch 1 is prevented from rapidly flowing out, the rainwater detention time is effectively prolonged, and the surface runoff rainwater permeability is ensured. A layer of stone is laid on the ditch planting soil to form a ditch stone layer 13, so that the scouring force of rainwater runoff is effectively dispersed, the lower layer planting soil is effectively protected, and the water and soil loss of the planting soil caused by rainwater scouring is reduced. The ditch planting soil layer 14 is arranged below the ditch stone layer 13. Mixing the wormcast in the local soil according to a certain proportion. The physical property of the soil can be changed by the wormcast, so that the clay is loosened, and the sandy soil is condensed; can promote the air circulation of soil, accelerate the propagation of microorganisms and facilitate the absorption of nutrients by plants; can enhance water retention and fertilizer retention, prevent soil loss and provide organic matters for promoting growth of plants. The ditch gravel layer 15 is arranged below the planting soil layer and is made of 5-10mm gravel. Can increase the rainwater penetration speed and can effectively filter pollutants in rainwater. A gravel cushion 16 is provided beneath the gravel bed. The effective separation gravel blocks the small holes of the perforated drain pipe 17, and has good drainage, and the rainwater permeating down flows into the perforated drain pipe 17 through the gravel cushion 16 and is drained into the rainwater centralized purification system 2 for purification. The perforated drain pipe 17 can effectively improve the drainage capacity of the rainwater intercepting and collecting ecological ditch 1. The maximum distance between the holes is 1.5m, and the minimum hydraulic gradient is 0.5%, so that water can be smoothly discharged. The perforated drain 17 has a diameter of at most 0.1 m. The tubing can be selected from PVC pipe or flexible perforated pipe. In order to prevent the broken stones from blocking the small holes, the small holes on the perforated pipes are not larger than the minimum side length of the broken stones. The perforated drainpipe 17 should ensure that the maximum filtration flow can be diverted and that the perforated pipe has sufficient drainage and retention capacity.
Referring to fig. 3, the rainwater centralized purification system 2 comprises a purification plant layer 20, a purification stone layer 21, a purification planting soil layer 22, a filter layer 23, a transition layer 24, a drainage layer 25, a drainage pipe 26 and an overflow pipe 27, rainwater is collected by intercepting rainwater and collected in the ecological ditch 1, is subjected to primary purification and is intensively introduced into the purification system for purification, and the rainwater permeates into the drainage layer 25 through filtration from the purification plant layer 20. And part of the purified rainwater permeates underground to supplement underground. The other part of water which does not permeate underground is discharged into rivers and lakes from an overflow pipe 27 arranged above the drainage layer 25 to be used as a water supply source for the rivers and lakes, or the residual purified water is introduced into a municipal pipe network to be used as water for landscaping, so that the phenomenon that the purified water stays in the drainage layer 25 for too long time or the reverse osmosis phenomenon occurs to influence the water quality is avoided.
Specifically, the plant of the purification plant layer 20 is mainly selected from native plants which are water-loving, yin-tolerant and developed in root system. And has the characteristics of long-term drought tolerance and short-term inundation tolerance. The whole surface of the stone layer is covered by the plant cultivation, and the arrangement is uniform. Is favorable for making the water flow uniform and increasing the effective purifying area. Lay a layer of building stones and form on purifying planting soil and purify building stones and spread layer 21, the effectual washing away power that disperses the runoff of rainwater, the effectual lower floor of having protected purifies planting soil, reduce and purify the soil erosion and water loss that planting soil caused because of the rainwater erodees. The purified planting soil layer 22 is arranged below the purified stone layer 21. The purified planting soil is mixed with wormcast in local soil according to a certain proportion. The physical property of the soil can be changed by the wormcast, so that the clay is loosened, and the sandy soil is condensed; can promote the air circulation of soil, accelerate the propagation of microorganisms and facilitate the absorption of nutrients by plants; can enhance water retention and fertilizer retention, prevent soil loss and provide organic matters for promoting growth of plants. The filter layer 23 is disposed below the planting layer. The surface of the filter material of the filter layer 23 must be level to ensure that the water flow can completely invade the filter layer 23 to prevent the filter material from being damaged by scouring. The filter material is graded with a depth of 0.6-1 m. The coefficient of the filter material is required to be within the range of 50-200 mm/h, if the permeability coefficient is too low, a proper amount of corner-free sand is added, and if the permeability coefficient is too high, a part of soft clay can be added. The transition layer 24 is provided below the filter layer 23. In order to prevent the filter material from entering the drainage layer 25, a transition layer 24 is additionally arranged between the filter layer 23 and the drainage layer 25, the width of the transition layer 24 is not less than 0.15m, and sand or coarse sand is selected as the filler. The drainage layer 25 is provided below the filter layer 23. The drainage layer 25 drains the water percolated by the filter layer 23 and the transition layer 24 into the ground as underground make-up water, and the other part of the water which does not permeate into the ground is drained into rivers and lakes from an overflow pipe 27 arranged above the drainage layer 25 to be used as a make-up water source of the rivers and lakes, or the residual purified water is led into a municipal pipe network to be used as landscape greening water, so that the phenomenon that the retention time of the purified water in the drainage layer 25 is too long or the reverse osmosis phenomenon affects the water quality is avoided. The drainage layer 25 has a minimum thickness of 0.2m and is free from destructive animals such as fire ants. One end of the water outlet of the drain pipe 26 is arranged at the middle position of the stone paving layer, and the other end is connected with the perforated drain pipe 17 in the rainwater intercepting and collecting ecological ditch 1. The rainwater collecting system is used for intercepting rainwater and collecting rainwater collected by the ecological ditch 1 and guiding the rainwater into the rainwater centralized purification system 2. The overflow pipe 27 is provided above the drainage layer 25, and in order to ensure that the residual purified water is not stored in the drainage layer 25 for a long time or is reversely permeated, the residual purified water which is not permeated into the ground is discharged into rivers and lakes to be used as a water supply source for the rivers and lakes, or the residual purified water is introduced into a municipal pipe network to be used as water for landscaping.
The ecological bank protection system of sectional type interception water purification of this embodiment is equipped with a plurality of horizontal rainwater on the slope and dams and collect ecological ditch for dam and collect the runoff rainwater. A rainwater centralized purification system is arranged at the lower end of the slope and close to the water body, and collected rainwater is centralized at the position for rainwater purification and reutilization, so that rainwater with pollutants is effectively reduced and drained into rivers and lakes. The rainwater intercepting and collecting ecological ditch effectively disperses the scouring force of surface rainwater runoff, reduces the water quantity, and rapidly increases the drainage pressure for a drainage pipe network and rivers and lakes. The utilization rate of surface runoff rainwater is improved while the functions of rainwater interception, rainwater collection, rainwater purification, water and soil conservation and ecological restoration can be realized.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides an ecological bank protection system of sectional type interception water purification, includes that the rainwater dams and collects ecological ditch and rainwater and concentrates clean system, and clean system is concentrated to the rainwater is enclosed by ecological retaining wall and is constructed its characterized in that: the rainwater centralized purification system is characterized in that a plurality of rainwater intercepting and collecting ecological ditches are arranged on the slope at intervals in a segmented mode, the rainwater centralized purification system is arranged at the low end of the slope, perforated drain pipes are arranged at the bottoms of the rainwater intercepting and collecting ecological ditches and connected with drain pipes of the rainwater centralized purification system, and runoff rainwater intercepting and collecting are drained to the rainwater centralized purification system.
2. The ecological slope protection system of sectional type interception water purification of claim 1, characterized in that: the upper width of the rainwater intercepting and collecting ecological ditch is 0.6-1.0 m.
3. The ecological slope protection system of sectional type interception water purification of claim 1, characterized in that: the rainwater intercepting and collecting ecological ditch also comprises a ditch plant layer, a rainwater drainage edge, a rainwater flow-resisting angle, a ditch stone layer, a ditch planting soil layer, a ditch gravel layer and a gravel cushion layer; when rainwater is collected ecological ditch through rainwater damps, is dammed by the recess that the ditch building stones of laying layered, and the water that is detained in the recess seeps down rapidly, filters through ditch gravel bed course, flows into the ditch gravel layer, and it purifies to draw into rainwater centralized purification system through ditch gravel layer perforation drain pipe.
4. The ecological slope protection system of sectional type interception water purification of claim 3, characterized in that: the plants of the ditch plant layer are local plants which are water-loving, yin-tolerant and developed in root systems; a circular chamfer is arranged at the high-level end of the rainwater interception and collection ecological ditch to form a rainwater drainage edge, and surface runoff rainwater passing through the circular chamfer is guided into the rainwater interception and collection ecological ditch;
the rainwater that collects the ecological ditch low-level end at rainwater damps is equipped with the rainwater that is perpendicular to slope and hinders the water conservancy diversion angle, has increased the rainwater and has dammed the water capacity of collecting the ecological ditch, prevents to flow into rainwater and damps the rainwater in collecting the ecological ditch and flow out rapidly.
5. The ecological slope protection system of sectional type interception water purification of claim 3, characterized in that: a layer of stone is laid on the ditch planting soil to form a ditch stone layer, so that the scouring force of rainwater runoff is dispersed, the lower layer planting soil is protected, and the water and soil loss of the planting soil caused by rainwater scouring is reduced; mixing wormcast with the ditch planting soil;
the ditch gravel layer is arranged below the planting soil layer, and 5-10mm gravels are selected;
the gravel cushion layer is arranged below the gravel layer.
6. The ecological slope protection system of sectional type interception water purification of claim 5, characterized in that: the hole pitch of the perforated drain pipe is less than 1.5m, and the hydraulic gradient is greater than 0.5%; the diameter of the perforated drain pipe is more than 0.1 m; the pipe material of the perforated drain pipe is a PVC pipe or a flexible perforated pipe; the small holes on the perforated drain pipe are smaller than the minimum side length of the broken stone.
7. The ecological slope protection system of sectional type interception water purification of any one of claims 1-6, characterized in that: the rainwater centralized purification system comprises a purified plant layer, a purified stone layer, a purified planting soil layer, a filter layer, a transition layer, a drainage pipe and an overflow pipe, rainwater is collected by a rainwater intercepting and collecting ecological ditch and is led into the purification system for purification in a primary purification centralized manner, and the rainwater permeates into the drainage layer from the purified plant layer through filtration; one part of the purified rainwater permeates the ground, and the other part of the purified rainwater does not permeate the ground is discharged into rivers and lakes from an overflow pipe arranged above the drainage layer to be used as a water supply source for the rivers and lakes, or the residual purified water is introduced into a municipal pipe network to be used as landscape greening water.
8. The ecological slope protection system of sectional type interception water purification of claim 7, characterized in that: the plants of the purification plant layer are selected from local plants which are water-loving, yin-tolerant and developed in root systems; the plant is planted and covers the whole surface of the stone layer and is evenly arranged.
A layer of stones is laid on the purified planting soil to form a purified stone layer, so that the scouring force of rainwater runoff is effectively dispersed, the lower layer of purified planting soil is effectively protected, and the water and soil loss of the purified planting soil caused by rainwater scouring is reduced;
the purifying planting soil layer is arranged below the purifying stone layer; purifying the mixed wormcast in the planting soil;
the filter layer is arranged below the planting layer, the surface of the filter material of the filter layer is horizontal, and water flow can completely invade the filter layer to prevent the filter material from being damaged by scouring;
the transition layer is arranged below the filter layer;
the drainage layer is arranged below the filter layer.
9. The ecological slope protection system of sectional type interception water purification of claim 7, characterized in that: the filter material of the filter layer is graded filter material, the depth is 0.6m-1m, and the coefficient of the filter material is 50-200 mm/h;
the width of the transition layer is not less than 0.15m, and sand or coarse sand is selected as a filler;
the thickness of the drainage layer is more than 0.2 m.
10. The ecological slope protection system of sectional type interception water purification of claim 7, characterized in that: one end of the water outlet of the drain pipe is arranged in the middle of the stone layer, and the other end of the water outlet of the drain pipe is connected with a perforated drain pipe in the rainwater intercepting and collecting ecological ditch;
the overflow pipe is arranged above the drainage layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010928422.0A CN112112172A (en) | 2020-09-07 | 2020-09-07 | Ecological bank protection system of sectional type interception water purification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380396A (en) * | 2021-12-12 | 2022-04-22 | 黑龙江茂程科技有限责任公司 | Biological detention system suitable for reduce river course non-point source pollution in cold region |
| CN118065404A (en) * | 2024-04-17 | 2024-05-24 | 内蒙古绵雨生态园林绿化工程有限责任公司 | Land reclamation vegetation recovery method |
| CN118065404B (en) * | 2024-04-17 | 2024-07-02 | 内蒙古绵雨生态园林绿化工程有限责任公司 | Land reclamation vegetation recovery method |
-
2020
- 2020-09-07 CN CN202010928422.0A patent/CN112112172A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380396A (en) * | 2021-12-12 | 2022-04-22 | 黑龙江茂程科技有限责任公司 | Biological detention system suitable for reduce river course non-point source pollution in cold region |
| CN118065404A (en) * | 2024-04-17 | 2024-05-24 | 内蒙古绵雨生态园林绿化工程有限责任公司 | Land reclamation vegetation recovery method |
| CN118065404B (en) * | 2024-04-17 | 2024-07-02 | 内蒙古绵雨生态园林绿化工程有限责任公司 | Land reclamation vegetation recovery method |
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