Reciprocating partition plate type sunken green land structure
Through the design of the deserted green space structure, the problem of damage to the green space in the early days of rainwater runoff pollution was solved, the increase in the area of green space and the peak runoff peak value, protecting the green space is not affected by heavy rainfall, and at the same time optimized the landscape and vegetation Growth environment.
Patent Information
- Application Number
- CN202421494001.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing concave green spaces have a high pollution of rainwater runoff in the early stage, resulting in the destruction of green space siltation, landscape impact and vegetation growth environment, and the layout of gravel belts will affect the paving of street trees and street lights.
Design a kind of concave green space structure in the compound plate type. By setting up lanes, rainfall wells, open -hole stones, and recovery components on both sides of the lower green space, the diversion of the initial rainwater and the middle and late rainwater in the early stages And increase the runoff path to reduce the peak runoff.
Effectively increase the use area of the lower green space, reduce the scouring of unilateral water into the green space, reduce the peak runoff, and protect the destruction of green space from heavy rainfall. At the same time, the landscape and vegetation growth environment of the green space is optimized.
Smart Images
Figure CN222413321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urban road and green space rainwater management, and in particular to a reciprocating partition type sunken green space structure. Background Art
[0002] As an important direction for the development of new urbanization in my country, sponge cities are not only determined by my country's basic national conditions, but also a fundamental way to solve the current severe urban disasters. In recent years, the country has attached great importance to and promoted the construction of sponge cities. Whether it is the policy implementation at the national level or the active implementation of local governments, they are all based on solving severe water problems.
[0003] Sponge city construction advocates rainwater source reduction, and realizes the source control and absorption and utilization of rainwater through the "infiltration, storage, retention, purification, use and discharge" of source facilities. The green space system is the area with the greatest rainwater infiltration, storage, retention and purification functions in sponge city construction. However, due to the large surface runoff pollution in some areas, it has a large pollution load on low-lying green spaces, which has a negative impact on the ecological system and intuitive experience of the green space.
[0004] At present, the country is systematically promoting the creation of sponge city demonstration cities across the country. In order to further play the role of gardens and green spaces in water ecological restoration, water safety, water environment improvement, and water resource conservation in sponge cities, the integration of sponge cities and gardens and greening should be further improved, and pre-treatment of initial rainwater should be done at the boundaries to reduce the impact of initial rainwater on gardens and green spaces.
[0005] The existing sunken green space usually directly connects the planting surface to the road surface, which causes heavy pollution in the initial rainwater runoff. The rainwater runoff from the road surface directly enters the sunken green space, causing siltation in the sunken green space, especially at the water inlet, which has a great impact on the green landscape and destroys the growth environment of green vegetation. If a gravel belt is directly arranged around it, the gravel will be higher than the road surface and block the side stone opening, which will lead to insufficient flow capacity of the water inlet. At the same time, because the road is long in the longitudinal direction, the sunken green space that needs to be arranged will also occupy a large part of the green belt, or affect the planting of street trees or the laying of street lights. Summary of the invention
[0006] The utility model mainly solves the deficiencies existing in the prior art and provides a reciprocating partition type sunken green space structure, which has the characteristics of compact structure and reasonable layout. It increases the use area of the sunken green space, reduces the scouring of the sunken green space by unilateral water inflow, increases the runoff path, and effectively reduces the runoff peak. It realizes the diversion of initial rainwater and mid- and late-stage rainwater, and protects the sunken green space from damage caused by heavy rainfall.
[0007] The above technical problems of the utility model are mainly solved by the following technical solutions:
[0008] A reciprocating baffle type sunken green space structure comprises a sunken green space, driveways higher than the sunken green space are arranged on both sides of the sunken green space, a rainwater overflow well is arranged at the front end of the sunken green space, and perforated curbstones connected to the driveways are arranged on both sides of the rear end of the sunken green space. The slope structure of the sunken green space from the perforated curbstone to the rainwater overflow well is from high to low, a reciprocating baffle assembly is arranged between the perforated curbstone and the rainwater overflow well, and the reciprocating baffle assembly is composed of a pair of reciprocating baffles interlaced with each other, and the two reciprocating baffles are interlaced to form a water slope channel.
[0009] Flood-resistant and drought-resistant plants are planted in the water slope channel of the reciprocating baffle assembly. The structural design of the reciprocating baffle assembly increases the use area of the sunken green space, reduces the scouring of the sunken green space by unilateral water inflow, increases the runoff path, and effectively reduces the runoff peak.
[0010] Preferably, the sunken green space includes a vegetation aquifer and a rammed earth, a gravel layer is provided between the vegetation aquifer and the rammed earth, and a planting soil replacement layer is provided between the vegetation aquifer and the gravel layer. The planting soil replacement layer intercepts suspended pollutants and plays a pre-precipitation role.
[0011] Preferably, a medium sand filter layer is provided between the planting soil replacement layer and the gravel layer, and a permeable geotextile is provided between the medium sand filter layer and the gravel layer. The intercepted rainwater enters the gravel layer through the permeable geotextile, and with the help of the pores of the gravel layer, tiny particles are intercepted and major pollutants such as COD are removed, thereby achieving a secondary reduction in rainfall pollution load.
[0012] Preferably, a rainwater pipe extending out of one side of the driveway and penetrating the gravel layer is provided at the lower portion of the rainwater overflow well.
[0013] Preferably, a water collecting ditch connected to the perforated curbstone is provided at the rear end of the reciprocating partition assembly, and scattered gravels are provided between the reciprocating partition assembly and the water collecting ditch. The rainwater flowing into the perforated curbstone is introduced into the water collecting ditch for transition, and enters the reciprocating partition type sunken green space after being intercepted and purified by the scattered gravels, playing a role of interception, and is not easily damaged by rainwater scouring.
[0014] Preferably, the height of the reciprocating partition is lower than the rainwater overflow well, so that when the rainfall is large, the initial rainwater enters the rainwater overflow well after being filtered and flocculated by the reciprocating partition, and the later rainwater is relatively clean and directly enters the rainwater overflow well when it exceeds the height of the reciprocating partition. The diversion of the initial rainwater and the middle and late rainwater is achieved, protecting the sunken green space from damage by heavy rainfall. The opening of the perforated curbstone is higher than the vegetation aquifer, and the height of the rainwater overflow well is lower than the vegetation aquifer.
[0015] Preferably, the reciprocating baffle is provided with a plurality of U-shaped water channels which are evenly spaced and communicate with one end surface. Since the reciprocating baffle structure is added to the sunken green space, the water flow direction is suddenly changed, which is easy to form sediment accumulation, especially near the overflow port where dead water areas are likely to exist. In order to eliminate the negative impact of the dead water area, the water slope channel is made into a U-shaped water channel. At the same time, the turbulence intensity changes slowly, which can not only meet the requirements of turbulent particle collision, but also effectively reduce the dead water area.
[0016] The utility model can achieve the following effects:
[0017] The utility model provides a reciprocating partition type sunken green space structure, which has the characteristics of compact structure and reasonable layout compared with the prior art. The use area of the sunken green space is increased, the scouring of the sunken green space by unilateral water inflow is reduced, and the runoff path is increased, effectively reducing the runoff peak. The diversion of initial rainwater and mid- and late-stage rainwater is achieved, protecting the sunken green space from damage caused by heavy rainfall. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a top view structural schematic diagram of the utility model.
[0019] Figure 2 It is a longitudinal structural sectional view of the utility model.
[0020] Figure 3 It is a structural schematic diagram of the reciprocating partition assembly of the utility model.
[0021] In the figure: driveway 1, sunken green space 2, reciprocating partition assembly 3, scattered gravel 4, perforated curb 5, drainage ditch 6, water slope channel 7, rainwater overflow well 8, rainwater pipe 9, vegetation aquifer 10, planting soil replacement layer 11, medium sand filter layer 12, permeable geotextile 13, gravel layer 14, compacted plain soil 15, reciprocating partition 16, U-shaped water trough 17. DETAILED DESCRIPTION
[0022] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.
[0023] Example: Figure 1 , Figure 2 and Figure 3As shown, a reciprocating partition type sunken green space structure includes a sunken green space 2, the sunken green space 2 includes a vegetation aquifer 10 and a plain soil tamping 15, a gravel layer 14 is provided between the vegetation aquifer 10 and the plain soil tamping 15, and a planting soil replacement layer 11 is provided between the vegetation aquifer 10 and the gravel layer 14. A medium sand filter layer 12 is provided between the planting soil replacement layer 11 and the gravel layer 14, and a permeable geotextile 13 is provided between the medium sand filter layer 12 and the gravel layer 14. Both sides of the sunken green space 2 are provided with a lane 1 higher than the sunken green space 2, and a rainwater overflow well 8 is provided at the front end of the sunken green space 2, and a rainwater pipe 9 extending from one side of the lane 1 and penetrating the gravel layer 14 is provided at the lower part of the rainwater overflow well 8. Perforated curbstones 5 connected to the lane 1 are provided on both sides of the rear end of the sunken green space 2. The slope structure of the sunken green space 2 from the perforated curbstone 5 to the rainwater overflow well 8 is from high to low. A reciprocating partition assembly 3 is provided between the perforated curbstone 5 and the rainwater overflow well 8. The reciprocating partition assembly 3 is composed of a pair of reciprocating partitions 16 interlaced, and the middle of the two reciprocating partitions 16 is interlaced to form a water slope channel 7. Three U-shaped water troughs 17 are arranged on the reciprocating partition 16, which are distributed at equal intervals and communicate with one side end face. A water collection ditch 6 connected to the perforated curbstone 5 is provided at the rear end of the reciprocating partition assembly 3, and scattered gravel 4 is provided between the reciprocating partition assembly 3 and the water collection ditch 6. The height of the reciprocating partition 16 is lower than the rainwater overflow well 8, the opening of the perforated curbstone 5 is higher than the vegetation aquifer 10, and the height of the rainwater overflow well 8 is lower than the vegetation aquifer 10.
[0024] The rainwater on the lane 1 enters the sunken green space 2 through the perforated curb 5. The sunken green space 2 plays the role of infiltration, regulation and purification of rainfall. When the rainfall exceeds the infiltration volume and adjustable storage volume of the sunken green space 2, the excess rainwater enters the rainwater overflow well 8 and then enters the municipal drainage irrigation channel to achieve timely removal of the excess rainwater. In the sunken green space 2 with the reciprocating baffle assembly 3, the water flow makes a 180-degree turn, and the local head loss is large, which reduces the continuous hydraulic scouring of the greening by large flow, and improves the service life and environmental adaptability of the sunken green space 2. Changing the speed of the water flow makes the particles in the water flow collide with each other, improving the flocculation efficiency.
[0025] In summary, the reciprocating partition-type sunken green space structure has the characteristics of compact structure and reasonable layout. It increases the use area of the sunken green space, reduces the scouring of the sunken green space by unilateral water inflow, increases the runoff path, and effectively reduces the runoff peak. It realizes the diversion of initial rainwater and mid- and late-stage rainwater, protecting the sunken green space from damage caused by heavy rainfall.
[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.
[0027] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.
Claims
1. A reciprocating partition type sunken green space structure, characterized in that: The invention comprises a sunken green space (2), wherein both sides of the sunken green space (2) are provided with lanes (1) higher than the sunken green space (2), a rainwater overflow well (8) is provided at the front end of the sunken green space (2), and both sides of the rear end of the sunken green space (2) are provided with perforated curbstones (5) connected to the lanes (1), the slope structure of the sunken green space (2) from the perforated curbstone (5) to the rainwater overflow well (8) is from high to low, a reciprocating partition assembly (3) is provided between the perforated curbstone (5) and the rainwater overflow well (8), and the reciprocating partition assembly (3) is composed of a pair of reciprocating partitions (16) interlaced, and the two reciprocating partitions (16) are interlaced to form a water slope channel (7).
2. The reciprocating partition type sunken green space structure according to claim 1, characterized in that: The sunken green space (2) comprises a vegetation aquifer (10) and a rammed earth (15), a gravel layer (14) is provided between the vegetation aquifer (10) and the rammed earth (15), and a planting soil replacement layer (11) is provided between the vegetation aquifer (10) and the gravel layer (14).
3. The reciprocating partition type sunken green space structure according to claim 2, characterized in that: A medium sand filter layer (12) is provided between the planting soil replacement layer (11) and the gravel layer (14), and a permeable geotextile (13) is provided between the medium sand filter layer (12) and the gravel layer (14).
4. The reciprocating partition type sunken green space structure according to claim 2, characterized in that: A rainwater pipe (9) is provided at the bottom of the rainwater overflow well (8), extending out of one side of the lane (1) and penetrating the gravel layer (14).
5. The reciprocating partition type sunken green space structure according to claim 1, characterized in that: A water collecting ditch (6) connected to the perforated curbstone (5) is provided at the rear end of the reciprocating baffle assembly (3), and scattered gravel (4) is provided between the reciprocating baffle assembly (3) and the water collecting ditch (6).
6. The reciprocating partition type sunken green space structure according to claim 1, characterized in that: The reciprocating partition (16) is lower in height than the rainwater overflow well (8), the opening of the perforated curbstone (5) is higher than the vegetation aquifer (10), and the rainwater overflow well (8) is lower in height than the vegetation aquifer (10).
7. The reciprocating partition type sunken green space structure according to claim 1, characterized in that: The reciprocating partition plate (16) is provided with a plurality of U-shaped water channels (17) which are distributed at equal intervals and communicate with one end surface.