Ecological slope for collecting and purifying runoff sewage of road section in water environment sensitive area of road
By designing an ecological slope structure with multiple filtration layers in water-sensitive areas of highways, the problem of runoff pollution on highway surfaces has been solved, achieving efficient purification and improved stability, while also promoting vegetation growth and improving the ecological environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-03
AI Technical Summary
Current methods for controlling runoff pollution on highways mainly focus on bridge deck runoff calculation methods and drainage pipe design, neglecting the buffering and adsorption effects of highway slopes, which makes it difficult to effectively solve pollution problems in water environment sensitive areas.
Design an ecological slope structure including a purification unit with multiple filter layers. The physicochemical and biological purification of runoff wastewater is carried out through a series of drainage pipe systems. Gravel, quartz sand and zeolite or slag mixed planting soil are used as filter materials to achieve multi-stage purification treatment.
Extending the purification time of runoff wastewater in the soil improves hydrological regulation and pollution adsorption effects, reduces operating costs, increases slope stability, promotes vegetation growth, and improves the ecological environment.
Smart Images
Figure CN224077199U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of road structures, and in particular to an ecological slope for collecting and purifying runoff sewage in road sections in water-sensitive areas of highways. Background Technology
[0002] With the continuous development of the transportation industry and the increase in highway traffic flow, water pollution caused by highway operation has become a key focus of green highway construction. Vehicle operation inevitably leads to water pollution due to tire wear, exhaust emissions, oil and gas leaks, and spills of transported goods. The hardening of roadbed and bridge surfaces increases the road runoff coefficient. Simultaneously, rainwater erosion of road surfaces increases runoff pollutants, especially in sections that cross ecologically sensitive areas such as urban drinking water source protection areas, wetland parks, and aquatic germplasm resource protection areas, where water pollution directly impacts the drinking water safety of urban residents.
[0003] Existing research on highway pavement runoff pollution control mainly focuses on bridge deck runoff calculation methods, drainage pipeline design, and collection ponds, while research and design on the buffering and adsorption effects of highway slopes are relatively limited. Summary of the Invention
[0004] This application provides an ecological slope for collecting and purifying runoff sewage in road sections with sensitive water environments, which improves the above-mentioned problems.
[0005] To achieve the above objectives, this application adopts the following technical solution:
[0006] Firstly, this application proposes an ecological slope for collecting and purifying runoff wastewater in road sections of highways in water environment sensitive areas, characterized by comprising:
[0007] A first drainage pipe is installed along the extension direction of the highway, and the first drainage pipe is connected to the road surface of the highway;
[0008] A second drain pipe, which is connected to multiple first drain pipes;
[0009] At least two purification units are connected and connected in series via a third drain pipe. Each purification unit includes at least two filter layers. The first drain pipe connects to the uppermost purification unit. The first drain pipe is connected to the uppermost filter layer of the uppermost purification unit. In two adjacent purification units, the lowermost filter layer of the first purification unit is connected to the uppermost filter layer of the second purification unit via the third drain pipe.
[0010] Optionally, the bottommost filter layer of the preceding purification unit is connected to the topmost filter layer of the following purification unit through the third drain pipe, and the bottommost filter layer of the preceding purification unit and the topmost filter layer of the following purification unit are at the same horizontal height.
[0011] Optionally, the first filter layer of the purification unit is a water collection layer, the filter layer below the water collection layer is a support layer, the filter layer below the support layer is a purification layer, and the filter layer below the purification layer is an adsorption layer.
[0012] Optionally, the water collection layer is a gravel layer.
[0013] Optionally, the supporting layer is a quartz sand layer.
[0014] Optionally, the purification layer is a mixture of zeolite or slag planting soil.
[0015] In summary, the above structure has the following technical effects:
[0016] This application proposes a multi-stage artificial infiltration system for road runoff, where wastewater flows from top to bottom through a series of interconnected systems. Drawing inspiration from the principles of sponge city concepts of infiltration, retention, storage, purification, utilization, and drainage, this system extends the time that road runoff wastewater spends in the soil or water body, thus purifying it. Through physicochemical and biological processes, it effectively treats road runoff pollution, ultimately purifying it before it enters rivers or infiltrates directly into the soil. Compared to single-stage artificial infiltration systems, this multi-stage series combination provides better hydrological control, pollutant adsorption, and purification effects. It requires no ground space, has low operating costs, effectively removes road runoff pollutants, increases slope stability, promotes vegetation growth, and improves the ecological environment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of an ecological slope structure for collecting and purifying runoff sewage in road sections of water-sensitive areas along highways, as proposed in an embodiment of this application.
[0018] Figure 2 This is a schematic diagram of the structure of the purification layer in an ecological slope for collecting and purifying runoff sewage in a road section in a water environment sensitive area, as proposed in an embodiment of this application.
[0019] The attached diagram is labeled as follows: 1-Ecological slope; 2-Second drainage pipe; 3-Third drainage pipe; 4-Purification unit; 5-Water collection layer; 6-Supporting layer; 7-Purification layer; 8-Adsorption layer. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] This application proposes an ecological slope 1 for collecting and purifying runoff sewage in road sections of highways in water environment sensitive areas. Please refer to [link / reference]. Figure 1 It includes a first drainage pipe installed along the direction of the road extension, a second drainage pipe 2 connecting multiple first drainage pipes, and at least two purification units 4 connected in series by a third drainage pipe 3.
[0022] The first drainage pipe may be connected to the road surface of the highway and is used to collect rainwater from the road surface. Understandably, the extension direction of the first drainage pipe is the same as the extension direction of the road surface.
[0023] The second drainage pipe 2 is used to connect multiple first drainage pipes, and the specific orientation of the second drainage pipe 2 is not limited in this application. The water outlet direction of the second drainage pipe 2 should be perpendicular to the road surface extension direction. It is understood that rainwater on the road surface can eventually be discharged to the purification unit 4 through the first drainage pipe and the second drainage pipe 2.
[0024] The purification unit 4 has a multi-layer structure, and multiple purification units 4 are arranged in series. Specifically, in this embodiment, the purification unit 4 includes at least two filter layers, and the first drain pipe is connected to the uppermost purification unit 4 to ensure that sewage can flow through all purification layers 7.
[0025] Specifically, the first drain pipe is connected to the uppermost filter layer of the uppermost purification unit 4, and in two adjacent purification units 4, the lowermost filter layer of the first purification unit 4 is connected to the uppermost filter layer of the second purification unit 4 through the third drain pipe 3, so that sewage can flow through the filter layers in all purification layers 7.
[0026] Optionally, in order to ensure the flow direction of the sewage, the bottommost filter layer of the preceding purification unit 4 is connected to the topmost filter layer of the following purification unit 4 through the third drain pipe 3, and the bottommost filter layer of the preceding purification unit 4 and the topmost filter layer of the following purification unit 4 are at the same horizontal height.
[0027] Please see Figure 2For example, in this embodiment, the first filter layer of the purification unit 4 is a water collection layer 5, the filter layer below the water collection layer 5 is a support layer 6, the filter layer below the support layer 6 is a purification layer 7, and the filter layer below the purification layer 7 is an adsorption layer 8.
[0028] In this embodiment, the first filter layer of the purification unit 4 is a water collection layer 5, which can be a gravel layer. The filter layer below the water collection layer 5 is a support layer 6, which can be a quartz sand layer. The filter layer below the support layer 6 is a purification layer 7, and the filter layer below the purification layer 7 is an adsorption layer 8, which can be a mixture of zeolite or slag planting soil.
[0029] This embodiment presents an ecological slope 1 for collecting and purifying runoff wastewater in road sections of highways in water-sensitive areas. Compared with single artificial infiltration systems, the multi-stage series combination method can bring better hydrological regulation, pollutant adsorption, and purification effects. It does not require ground space, has low operating costs, can effectively remove pollutants from road runoff, and can also increase slope stability, promote vegetation growth, and improve the ecological environment.
[0030] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.
Claims
1. An ecological slope for collecting and purifying runoff sewage in road sections of water-sensitive areas of highways, characterized in that, include: A first drainage pipe is installed along the extension direction of the highway, and the first drainage pipe is connected to the road surface of the highway; A second drain pipe, which is connected to multiple first drain pipes; At least two purification units are connected and connected in series via a third drain pipe. Each purification unit includes at least two filter layers. The first drain pipe connects to the uppermost purification unit. The first drain pipe is connected to the uppermost filter layer of the uppermost purification unit. In two adjacent purification units, the lowermost filter layer of the first purification unit is connected to the uppermost filter layer of the second purification unit via the third drain pipe.
2. An ecological slope for collecting and purifying runoff sewage in road sections of water-sensitive areas along highways, as described in claim 1, is characterized in that... The bottommost filter layer of the preceding purification unit is connected to the topmost filter layer of the following purification unit through the third drain pipe, and the bottommost filter layer of the preceding purification unit and the topmost filter layer of the following purification unit are at the same horizontal height.
3. An ecological slope for collecting and purifying runoff sewage in road sections of water-sensitive areas along highways, as described in claim 2, is characterized in that... The first layer of the purification unit is a water collection layer, the filter layer below the water collection layer is a support layer, the filter layer below the support layer is a purification layer, and the filter layer below the purification layer is an adsorption layer.
4. An ecological slope for collecting and purifying runoff sewage in road sections of water-sensitive areas along highways, as described in claim 3, is characterized in that... The water-collecting layer is a gravel layer.
5. An ecological slope for collecting and purifying runoff sewage in road sections of water-sensitive areas along highways, as described in claim 3, is characterized in that... The supporting layer is a quartz sand layer.
6. An ecological slope for collecting and purifying runoff sewage in road sections of water-sensitive areas along highways, as described in claim 3, is characterized in that... The purification layer is a mixture of zeolite or slag planting soil.