Road sponge city system capable of effectively relieving urban road water accumulation problem

Abstract

The invention discloses a road sponge city system capable of effectively relieving the urban road water accumulation problem, and relates to the field of garden landscape design, the road sponge city system comprises hydrophobic bricks, the hydrophobic bricks are laid on the surface of road edge stone, road water flowing stone is arranged at the bottom of the road edge stone, and a municipal asphalt road is arranged at the bottom of the road water flowing stone; a water collecting well is arranged on the surface of the hydrophobic brick, a grit chamber is fixedly arranged on the lower side in the water collecting well, a drainage pipeline is installed at the bottom of the water collecting well, a tree pool is arranged on one side of the road edge stone, a drainage structure layer is arranged at the bottom of the tree pool, a drainage tree pool closing edge is arranged on one side of the tree pool, and a sidewalk is arranged on one side of the drainage tree pool closing edge. According to the road sponge city system capable of effectively relieving the urban road water accumulation problem, natural drainage and utilization of urban rainwater are achieved by collecting, storing, purifying and utilizing the rainwater, the pressure of an urban drainage system is relieved to a large extent, the ecological environment is improved, and meanwhile the laying mode is more attractive.

Description

Technical Field

[0001] The present invention relates to the field of garden landscape design, and in particular to a road sponge city system that effectively alleviates the problem of waterlogging on urban roads. Background Art

[0002] Sponge City is a new generation of urban stormwater management concept. It refers to cities that are able to adapt to environmental changes and respond to natural disasters caused by rainwater, just like a sponge, and have good resilience. It can also be called a "water-resilient city". One of the links in sponge city construction is to achieve ecological and environmental protection through water permeability through road surfaces. However, with the rapid development of cities, the area of urban surface concrete solidification has increased, and urban rainwater collection systems have decreased. When the rainy season arrives, rainwater cannot directly penetrate the ground and is mostly collected and discharged through the city's drainage system. When urban precipitation is too heavy, the urban drainage system collapses, and urban waterlogging occurs. The current urban drainage system is inevitably clogged during use. Especially during sudden and heavy rains, human debris and fallen leaves on the road surface are not cleaned up in time and are carried along with the rainwater through the road drainage outlets into the internal drainage system. Larger debris can cause blockage of the drainage outlet, which is easy to clean, while smaller debris directly enters the drainage pipes within the drainage system, which may reduce the water delivery rate or even cause blockage. This makes it more difficult to drain the water, exacerbating localized waterlogging in cities and posing a safety hazard to roads.

[0003] To address the above-mentioned issues, a Chinese patent application numbered CN215629113U was found after searching. It discloses a sponge urban road structure that is easy to maintain and prevents water accumulation. The structure includes a road body, a first drainage pit provided on the road body, a first filter plate provided at the top of the first drainage pit, a water collection portion provided at the bottom of the first drainage pit, a drainage pipe provided in the middle of the water collection portion, a second filter plate provided between the water collection portion and the first filter plate, and both the first and second filter plates being detachably connected to the road body; and a plurality of first filter holes evenly spaced apart are provided on the first filter plate.

[0004] Although the above-mentioned device can effectively avoid the blockage of drainage pipes, improve the urban drainage efficiency and avoid road waterlogging, in actual use, some sections of urban roads are seriously flooded and drainage is difficult. The drainage bricks used for drainage are generally only connected to the drainage outlet. When the rainfall is too heavy, the water carrying capacity is too large and it is impossible to drain and release water in time, resulting in urban waterlogging. Summary of the Invention

[0005] The purpose of the present invention is to provide a road sponge city system that effectively alleviates the problem of waterlogging on urban roads, so as to solve the defects mentioned in the above background technology.

[0006] To achieve the above object, a road sponge city system for effectively alleviating the problem of urban road waterlogging is provided, including hydrophobic bricks. The hydrophobic bricks are laid on the surface of the curbstone. A road flowing water stone is arranged at the bottom of the curbstone, and a municipal asphalt road is arranged at the bottom of the road flowing water stone. A catch basin is arranged on the surface of the hydrophobic bricks. A grit chamber is fixedly arranged on the lower side inside the catch basin. A drainage pipe is installed at the bottom of the catch basin. A tree pit is arranged on one side of the curbstone. A drainage structure layer is arranged at the bottom of the tree pit. A drainage tree pit edge is arranged on one side of the tree pit. The side of the drainage tree pit edge is a sidewalk.

[0007] Further, the drainage tree pit edge is flush with the surface of the sidewalk. The tree pit on one side of the drainage tree pit edge is docked with the hydrophobic bricks, and the hydrophobic bricks at the docking part with the tree pit are recessed by 2 cm.

[0008] Further, a drainage structure layer is arranged at the bottom of the tree pit. Multiple groups of tree pits and catch basins are evenly arranged. The catch basins are arranged between two adjacent groups of tree pits. The distance between two adjacent catch basins is 50 - 100 m.

[0009] Further, a manhole cover is arranged above the catch basin. Lifting rings are arranged at the four corners of the manhole cover. A safety net is arranged at the bottom of the manhole cover.

[0010] Further, the drainage structure layer includes planting soil, geotextile A, a water filtration layer, and geotextile B. The planting soil, geotextile A, a thick gravel water filtration layer, and geotextile B are arranged in layers from top to bottom in sequence. River sand is doped in the planting soil. The ratio between the planting soil and the river sand is 1:5. The laying specifications of geotextile A and geotextile B are: the weight of each square meter of geotextile is 200 grams; the water filtration layer is formed by piling up gravel.

[0011] Further, three grit chambers are arranged below the catch basin. The grit chambers are square bodies. Steel ropes are arranged on each group of grit chambers, and the steel ropes are fixed to the barrel body of the grit chambers.

[0012] Further, the nominal outer diameter of the drainage pipe at the bottom of the catch basin is 110 mm. The end of the drainage pipe far from the catch basin is communicated with the municipal rainwater pipe network; permeable pipes with a nominal outer diameter of 90 mm are arranged on both sides of the catch basin.

[0013] Further, the safety net includes an outer frame, a mesh cloth, a warning platform, a limit piece, a magnet, a buffer seat, a guide shaft, a buffer spring, and an inner connection seat. The outer frame is fixedly arranged on the outer wall of the mesh cloth. Five groups of buffer seats are evenly installed at the bottom of the outer frame. Inner connection seats are arranged at the bottom of the five groups of buffer seats.

[0014] Furthermore, the cross-sections of the inner socket and the buffer socket are both set in an "L" shape. The outer side of the inner socket is fixedly arranged on the inner wall of the catch basin. In the middle of the surface of the inner socket, a guide shaft is provided, and the guide shaft passes through a guide hole opened on the buffer socket; a buffer spring is installed on the outer side of the guide shaft.

[0015] Furthermore, a warning platform is covered on the surface of the outer frame. The warning platform is a C-shaped structure made of metal material. The two ends of the warning platform are set in an arc shape. Both ends of the warning platform are movably connected to the outer frame through pin shafts. The rotation angle range of the warning platform on the surface of the outer frame is 0-90 degrees. Limit pieces are provided at both ends of the warning platform. The bottom of the limit piece is fixedly arranged on the outer frame. A magnet is inlaid and fixed in the middle of the outer frame. The warning platform is limited on the outer frame through the limit piece and the magnet.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the road sponge city system diverts water flow into the drainage tree pit edge through hydrophobic bricks, and then uses the rainwater accumulation to supplement the water required by the trees. By introducing water into each tree pit, the rainwater discharge speed is delayed, the pressure on the urban drainage system is reduced, and the rainwater accumulation passes through the drainage structure layer in the tree pit to purify it, improving the quality of the rainwater accumulation. The purified water can better supplement and maintain the plants in the tree pit, and the excess water resources flow into the catch basin through the permeable pipe, and the water resources in the well can be reused, saving water resources.

[0018] 2. In the present invention, under necessary circumstances, the excess water in the well is discharged into the municipal rainwater pipe network through the drainage pipe; it can effectively alleviate the serious problem of water accumulation on urban roads during the rainy season, simulate the natural rainwater circulation system, collect, store, purify and utilize rainwater, realize the natural discharge and utilization of urban rainwater, greatly reduce the pressure on the urban drainage system, avoid urban waterlogging, improve the ecological environment, and at the same time the laying method is more beautiful.

[0019] 3. After the hydrophobic bricks are integrally formed in the present invention, they can be used after being spliced. Rainwater is collected into the hydrophobic bricks and flows into the tree pit. The excess water in the tree pit seeps down and is collected into the municipal rainwater pipe to discharge through the groove design of the hydrophobic bricks, which plays a good hydrophobic role while not affecting walking and trampling; it can effectively alleviate the problem of water accumulation on urban roads during the rainy season; it can effectively alleviate the serious problem of water accumulation on urban roads during the rainy season.

[0020] 4. Through the interaction between the drainage tree pit and the catch basin, the present invention can reduce the pressure on the urban drainage system, store rainwater, facilitate subsequent purification and utilization, save water resources, improve the ecological environment, and improve the problem of water accumulation on roads during the rainy season; solve the problems that there are no similar products in the existing market and the problems existing in the ordinary road sponge city system.

[0021] 5. The multi - group of filter holes evenly opened on the grid cloth of the present invention can filter large - sized impurities such as leaves, branches, and silt, which helps prevent these impurities from entering the catch basin and causing blockages, reduces the frequency and workload of dredging, and maintains the normal drainage function of the catch basin; the warning platform provided on the outer frame can be pulled out and set at a 90 - degree angle with the outer frame when the catch basin is being dredged or there is no manhole cover, and it passes through the catch basin in the middle and protrudes on the road surface. The reflective stickers on the surface of the warning platform can play an obvious warning role in low - light conditions, reminding pedestrians and vehicles to pay attention to the potential safety hazard here and avoid accidental falling accidents, thus ensuring the safety of personnel and vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the plan view of the road sponge city system provided by the present invention;

[0023] Figure 2 is the schematic A - A sectional view of the road sponge city system provided by the present invention;

[0024] Figure 3 is the schematic B - B sectional view of the road sponge city system provided by the present invention;

[0025] Figure 4 is the schematic C - C sectional view of the road sponge city system provided by the present invention;

[0026] Figure 5 is the plan view of the stainless - steel manhole cover structure of the road sponge city system provided by the present invention;

[0027] Figure 6 is the plan view of the stainless - steel manhole cover of the road sponge city system provided by the present invention;

[0028] Figure 7 is the detailed upper - part view of the catch - basin section of the road sponge city system provided by the present invention;

[0029] Figure 8 is the plan view of the hydrophobic brick of the road sponge city system provided by the present invention;

[0030] Figure 9 is the sectional view of the hydrophobic brick of the road sponge city system provided by the present invention;

[0031] Figure 10 is the schematic view of the lifting ring of the road sponge city system provided by the present invention;

[0032] Figure 11 is the schematic view of the anti - falling net and its installation structure in the present invention;

[0033] Figure 12 is Figure 11 the bottom view of;

[0034] Figure 13 is Figure 11 the rear view of;

[0035] Figure 14 is Figure 11 the sectional view of;

[0036] Figure 15 is Figure 14 the rear view of.

[0037] [Reference Signs]

[0038] 1, hydrophobic brick; 2, curbstone; 3, road running water stone; 4, municipal asphalt road; 5, drainage pipe; 6, catch basin; 61, manhole cover; 7, grit chamber; 8, drainage structural layer; 9, drainage tree pit edge; 10, sidewalk; 11, steel rope; 12, permeable pipe; 13, lifting ring; 14, tree pit; 15, anti-fall net; 150, outer frame; 151, wire mesh; 152, warning platform; 153, limiting piece; 1531, magnet; 154, buffer seat; 155, guide shaft; 1551, buffer spring; 156, inner connecting seat. Detailed Implementation Modes

[0039] Detailed Implementation Mode 1: Please refer to Figures 1 - 10 , the present invention provides a technical solution: a road sponge city system for effectively alleviating the problem of urban road waterlogging, including a hydrophobic brick 1, the hydrophobic brick 1 is laid on the surface of the curbstone 2, a road running water stone 3 is arranged at the bottom of the curbstone 2, a municipal asphalt road 4 is arranged at the bottom of the road running water stone 3, a catch basin 6 is arranged on the surface of the hydrophobic brick 1, a grit chamber 7 is fixedly arranged on the lower side inside the catch basin 6, a drainage pipe 5 is installed at the bottom of the catch basin 6, a tree pit 14 is arranged on one side of the curbstone 2, a drainage structural layer 8 is arranged at the bottom of the tree pit 14, a drainage tree pit edge 9 is arranged on one side of the tree pit 14, and a sidewalk 10 is arranged on one side of the drainage tree pit edge 9.

[0040] Working Principle: This system mainly includes a hydrophobic brick 1, a tree pit 14, a catch basin 6 and a grit chamber 7. The hydrophobic brick 1 is in a square shape and is integrally formed. The upper part of the brick body is provided with a plurality of polygonal convex blocks, and the gaps between the convex blocks form water flow grooves. The concave blocks on the top surface of the brick body play an anti-slip role, and the grooves can guide water flow; the hydrophobic brick 1 is made of precast concrete and is integrally formed, with dimensions of 600mm×300mm×50mm, as shown in detail in Figure 8 and Figure 9 shown; as shown in Figures 2 to 4As shown, the drainage tree pool edge 9 is flush with the sidewalk 10, and one side of the tree pool 14 is connected to the drain brick 1. The brick body of the connecting part is recessed by 2 cm, so that the water drained by the drain brick 1 can be smoothly discharged into the drainage tree pool edge 9. A drainage structure layer 8 is provided inside the tree pool 14 to facilitate drainage and water retention; the water collection well 6 is set in the middle of the two drainage tree pool edges 9, with a spacing of 50-100 meters, and is set according to the slope on site. The greater the slope, the smaller the spacing. Stainless steel manhole covers 61 are set above the water collection wells 6, and lifting rings 13 are provided at the four corners of the manhole cover to facilitate the movement of the manhole cover 61. A finished anti-fall net 15 is installed under the manhole cover 61 to facilitate cleaning and prevent siltation; the detailed diagram of the stainless steel manhole cover 61 is as shown in Figures 5 - 6 As shown; the upper part of the water collection well 6 is shown in detail Figure 7 As shown; pull ring 13 detailed diagram as Figure 10 As shown;

[0041] The drainage structure layer 8 inside the drainage tree pool edge 9 includes planting soil, geotextile A, a water filter layer, and geotextile B. The planting soil, geotextile A, thick gravel water filter layer, and geotextile B are arranged in layers from top to bottom. The planting soil is mixed with river sand, and the ratio between planting soil and river sand is 1:5. The laying specifications of geotextile A and geotextile B are: the weight of geotextile per square meter is 200 grams; the water filter layer is made of gravel.

[0042] like Figure 1 、 Figure 4 As shown: three grit chambers 7 are provided at the bottom of the water collection well 6. The grit chambers 7 are square. Each grit chamber 7 is fixed with a steel rope 11 to the barrel body for easy access and cleaning. A DN90 permeable pipe 12 is provided at the bottom of the drainage tree pool edge 9 to connect to the water collection well 6. A DN110 drainage pipe 5 is provided at the bottom of the water collection well 6 to drain to the municipal rainwater pipe network.

[0043] When installing and laying: refer to Figure 1, a row of road water stones 3 is connected to one side of the municipal asphalt road 4, followed by a row of curbstones 2, and a row of hydrophobic bricks 1 is laid on the other side of the curbstones 2. The hydrophobic bricks 1 are connected to each drainage tree pool edge 9. The hydrophobic bricks 1 set in this system have a strong anti-slip and anti-sprain function, which can not only maintain the beauty of urban roads, but also effectively drain water to prevent accidents; the road sponge city system diverts water into the drainage tree pool edge 9 through the hydrophobic bricks 1, and then uses rainwater accumulation to replenish the water needed by trees. By introducing water into each tree pool 14, the rainwater discharge speed is slowed down, reducing the pressure on the urban drainage system. The rainwater accumulation passes through the drainage structure layer in the tree pool 14 8. It purifies the rainwater to improve the quality of the accumulated rainwater. The purified water can better replenish and maintain the plants in the tree pool 14. The excess water is retained in the water collection well 6 through the permeable pipe 12. The water in the well can be reused to save water resources. When necessary, the excess water in the well is discharged to the municipal rainwater pipe network through the drainage pipe; it can effectively alleviate the serious problem of water accumulation on urban roads during the rainy season, simulate the natural rainwater circulation system, collect, store, purify and utilize rainwater, realize the natural discharge and utilization of urban rainwater, greatly reduce the pressure on the urban drainage system, improve the ecological environment and make the paving method more beautiful;

[0044] After the drainage brick 1 is integrally formed, it can be assembled and used. Rainwater is collected in the drainage brick 1 and flows into the tree pool 14. The excess water in the tree pool 14 seeps down and is collected in the municipal rainwater pipe for discharge. The groove design of the drainage brick 1 plays a good drainage role without affecting walking and stepping, effectively alleviating the problem of water accumulation on urban roads in the rainy season; it can effectively alleviate the serious problem of water accumulation on urban roads in the rainy season; compared with ordinary drainage bricks, the drainage brick 1 has more anti-slip and anti-sprain functions. The polygonal concave block design can reduce the probability of siltation and blockage, has strong water collection capacity and smooth water flow; the groove area of ordinary drainage bricks on the market is too wide and too large, which is easy to be silted and blocked, and the water flow is poor. It is also easy to sprain when walking;

[0045] Not only can the natural discharge and utilization of urban rainwater be achieved, but the hydrophobic bricks 1 used in the system are easy to dismantle and lay, are not prone to siltation and blockage, and have a more beautiful appearance. Through the interaction between the drainage tree pool 14 and the water collection well 6, the pressure on the urban drainage system can be reduced, rainwater can be stored, and it is convenient for subsequent purification and utilization, saving water resources, improving the ecological environment, and improving the problem of waterlogging on roads during the rainy season; it solves the problem that there are no similar products in the existing market and the problems existing in ordinary road sponge city systems.

[0046] Specific embodiment 2: This embodiment is a further limitation of specific embodiment 1. The drainage tree pool edge 9 and the surface of the sidewalk 10 are set flush, the tree pool 14 on one side of the drainage tree pool edge 9 is connected to the hydrophobic brick 1, and the hydrophobic brick 1 at the connection part with the tree pool 14 is recessed by 2 cm.

[0047] Embodiment 3: This embodiment is a further limitation of Embodiment 1. A drainage structure layer 8 is provided at the bottom of the tree pit 14. Multiple groups of tree pits 14 and catch wells 6 are evenly arranged. The catch well 6 is arranged between two adjacent groups of tree pits 14, and the distance between two adjacent catch wells 6 is 50 - 100 m.

[0048] Embodiment 4: This embodiment is a further limitation of Embodiment 1. A manhole cover 61 is provided above the catch well 6. Lifting rings 13 are provided at the four corners of the manhole cover 61, and an anti-falling net 15 is provided at the bottom of the manhole cover 61.

[0049] Embodiment 5: This embodiment is a further limitation of Embodiment 3. The drainage structure layer 8 includes planting soil, geotextile A, a water filtration layer, and geotextile B. The planting soil, geotextile A, thick gravel water filtration layer, and geotextile B are arranged in layers from top to bottom. River sand is doped in the planting soil, and the ratio between the planting soil and the river sand is 1:5. The laying specifications of geotextile A and geotextile B are: the weight of each square meter of geotextile is 200 grams; the water filtration layer is formed by piling up gravel.

[0050] Embodiment 6: This embodiment is a further limitation of Embodiment 1. Three sedimentation tanks 7 are provided below the catch well 6. The sedimentation tank 7 is a square body, and a steel rope 11 is provided on each group of sedimentation tanks 7. The steel rope 11 is fixed to the barrel body of the sedimentation tank 7.

[0051] Embodiment 7: This embodiment is a further limitation of Embodiment 1. The nominal outer diameter of the drainage pipe 5 at the bottom of the catch well 6 is 110 mm. One end of the drainage pipe 5 away from the catch well 6 is connected and communicated with the municipal rainwater pipe network; permeable pipes 12 are provided on both sides of the catch well 6, and the nominal outer diameter of the permeable pipe 12 is 90 mm.

[0052] Embodiment 8: This embodiment is a further limitation of Embodiment 4. The anti-falling net 15 includes an outer frame 150, a mesh cloth 151, a warning platform 152, a limit piece 153, a magnet 1531, a buffer seat 154, a guide shaft 155, a buffer spring 1551, and an inner connection seat 156. The outer frame 150 is fixedly arranged on the outer wall of the mesh cloth 151. Five groups of buffer seats 154 are evenly installed at the bottom of the outer frame 150, and inner connection seats 156 are provided at the bottoms of the five groups of buffer seats 154.

[0053] Embodiment 9: This embodiment is a further limitation of Embodiment 8. The cross-sections of the inner connection seat 156 and the buffer seat 154 are both arranged in an "L" shape. The outer side of the inner connection seat 156 is fixedly arranged on the inner wall of the catch well 6. A guide shaft 155 is arranged in the middle of the surface of the inner connection seat 156, and the guide shaft 155 passes through a guide hole opened on the buffer seat 154; a buffer spring 1551 is installed on the outer side of the guide shaft 155.

[0054] Embodiment Ten: This embodiment is a further limitation of Embodiment Eight. The surface of the outer frame 150 is covered with a warning platform 152. The warning platform 152 is a C-shaped structure made of metal. The two ends of the warning platform 152 are arranged in an arc shape. Both ends of the warning platform 152 are movably connected to the outer frame 150 through pin shafts. The rotation angle range of the warning platform 152 on the surface of the outer frame 150 is 0 - 90 degrees. Limiting pieces 153 are arranged at both ends of the warning platform 152. The bottom of the limiting piece 153 is fixedly arranged on the outer frame 150. A magnet 1531 is inlaid and fixed in the middle of the outer frame 150. The warning platform 152 is limited on the outer frame 150 through the limiting piece 153 and the magnet 1531.

[0055] The installation methods of the anti-falling net 15 inside the catch basin 6 include but are not limited to being fixed by hooks and a buffer warning mechanism. The way of fixing the anti-falling net 15 inside the catch basin 6 by hooks is as Figure 7 shown: While the way of fixing by the buffer warning mechanism is as Figures 11 - 15 shown: Specifically, a plurality of groups of filter holes are evenly opened on the mesh cloth 151, which can be used to filter large-sized impurities, such as leaves, branches, and silt. At the same time, the setting of the mesh cloth 151 can buffer the accidentally dropped items through four buffer springs 1551. At the same time, a warning platform 152 is arranged on the outer frame 150 outside the mesh cloth 151. A reflective sticker is adhered to the surface of the warning platform 152. When the inside of the catch basin 6 is dredged or there is no manhole cover 61, the warning platform 152 can be pulled out at this time and set at 90 degrees to the outer frame 150. At the same time, the middle part of the warning platform 152 passes through the catch basin 6 and protrudes on the road surface; the plurality of groups of filter holes evenly opened on the mesh cloth 151 can filter large-sized impurities, such as leaves, branches, and silt, etc., which helps to prevent these impurities from entering the catch basin 6 and causing blockage, reduces the dredging frequency and workload, and maintains the normal drainage function of the catch basin 6; when there are accidentally dropped items, the mesh cloth 151 can be buffered through four buffer springs 1551, which can effectively reduce the impact force when the items fall, reduce the risk of damage to the internal facilities of the catch basin 6, and at the same time can also avoid situations such as noise and splashing caused by the falling of items to a certain extent; the warning platform 152 arranged on the outer frame 150 can be pulled out and set at 90 degrees to the outer frame 150 when the catch basin 6 is dredged or there is no manhole cover 61, and the middle part passes through the catch basin 6 and protrudes on the road surface. The reflective sticker on the surface of the warning platform 152 can play an obvious warning role in the case of dim light, reminding pedestrians and vehicles to pay attention to the safety hazard here and avoid accidental falling accidents, ensuring the safety of personnel and vehicles.

Claims

1. A road sponge city system for effectively alleviating the problem of urban road waterlogging, including hydrophobic bricks (1), characterized in that: The hydrophobic brick (1) is laid on the surface of a curbstone (2); a road water flow stone (3) is provided at the bottom of the curbstone (2); a municipal asphalt road (4) is provided at the bottom of the road water flow stone (3); a water collection well (6) is provided on the surface of the hydrophobic brick (1); a sand settling tank (7) is fixedly provided on the lower side of the inner part of the water collection well (6); a drainage pipe (5) is installed at the bottom of the water collection well (6); a tree pool (14) is provided on one side of the curbstone (2); a drainage structure layer (8) is provided at the bottom of the tree pool (14); a drainage tree pool edge (9) is provided on one side of the tree pool (14); and a sidewalk (10) is provided on one side of the drainage tree pool edge (9).

2. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 1, characterized in that: The drainage tree pool edge (9) and the surface of the sidewalk (10) are arranged flush, the tree pool (14) on one side of the drainage tree pool edge (9) and the hydrophobic brick (1) are connected to each other, and the hydrophobic brick (1) at the connection position with the tree pool (14) is recessed by 2 cm.

3. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 1, characterized in that: The bottom of the tree pit (14) is provided with a drainage structure layer (8), and the tree pits (14) and water collection wells (6) are evenly arranged in multiple groups. The water collection wells (6) are arranged between two adjacent groups of tree pits (14), and the distance between the two adjacent groups of water collection wells (6) is 50-100m.

4. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 1, characterized in that: A manhole cover (61) is provided above the water collection well (6), and four corners of the manhole cover (61) are provided with lifting rings (13), and the bottom of the manhole cover (61) is provided with an anti-falling net (15).

5. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 3, characterized in that: The drainage structure layer (8) includes planting soil, geotextile A, a water filter layer and geotextile B. The planting soil, geotextile A, a thick crushed stone water filter layer and geotextile B are arranged in layers from top to bottom. The planting soil is mixed with river sand. The ratio between the planting soil and the river sand is 1:

5. The laying specifications of geotextile A and geotextile B are: the weight of each square meter of geotextile is 200 grams; the water filter layer is made of crushed stones.

6. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 1, wherein: Three groups of grit chambers (7) are arranged below the water collection well (6). The grit chambers (7) are square bodies. Each group of grit chambers (7) is provided with a steel rope (11) which is fixed to the barrel of the grit chamber (7).

7. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 1, characterized in that: The drainage pipe (5) at the bottom of the water collection well (6) has a nominal outer diameter of 110 mm, and one end of the drainage pipe (5) away from the water collection well (6) is connected to the municipal rainwater pipe network; permeable pipes (12) are provided on both sides of the water collection well (6), and the nominal outer diameter of the permeable pipes (12) is 90 mm.

8. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 4, characterized in that: The anti-falling net (15) comprises an outer frame (150), a mesh cloth (151), a warning platform (152), a limiting piece (153), a magnet (1531), a buffer seat (154), a guide shaft (155), a buffer spring (1551) and an inner seat (156); the outer frame (150) is fixedly arranged on the outer wall of the mesh cloth (151); five groups of buffer seats (154) are evenly installed on the bottom of the outer frame (150); and the bottoms of the five groups of buffer seats (154) are all provided with an inner seat (156).

9. The road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 8, characterized in that: The cross-sections of the inner socket (156) and the buffer seat (154) are both arranged in an "L" shape. The outer side of the inner socket (156) is fixedly arranged on the inner wall of the catch basin (6). The middle part of the surface of the inner socket (156) is provided with a guide shaft (155), and the guide shaft (155) passes through a guide hole opened on the buffer seat (154); a buffer spring (1551) is installed on the outer side of the guide shaft (155).

10. A road sponge city system for effectively alleviating the problem of urban road waterlogging according to claim 8, characterized in that: The surface of the outer frame (150) is covered with a warning platform (152). The warning platform (152) is a C-shaped structure made of metal. The two ends of the warning platform (152) are arranged in an arc shape. Both ends of the warning platform (152) are movably connected to the outer frame (150) through pin shafts. The rotation angle range of the warning platform (152) on the surface of the outer frame (150) is 0-90 degrees. Limit pieces (153) are arranged at both ends of the warning platform (152). The bottom of the limit piece (153) is fixedly arranged on the outer frame (150). A magnet (1531) is inlaid and fixed in the middle of the outer frame (150). The warning platform (152) is limited on the outer frame (150) through the limit piece (153) and the magnet (1531).

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