Ecological road roadbed structure of sponge city
By incorporating components such as trenches, water tanks, water storage troughs, and filter plates into the roadbed structure, the problem of multi-stage filtration, collection, and dynamic pumping and storage of rainwater in the roadbed structure is solved, thus achieving effective rainwater storage and utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU YINGLV MUNICIPAL GARDEN ENG CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-19
AI Technical Summary
The existing roadbed structure is not conducive to multi-stage filtration and collection of rainwater, nor to dynamic pumping and storage of rainwater, which affects its performance.
The roadbed structure is equipped with components such as trenches, water storage tanks, water storage troughs, filter plates and water pumps to achieve rainwater accumulation through multi-stage filtration and dynamic suction, including primary filtration, secondary filtration and dynamic accumulation.
It achieves multi-stage filtration, collection, and dynamic pumping and storage of rainwater, making full use of roadbed space and improving its effectiveness.
Smart Images

Figure CN224259129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roadbed structure technology, specifically to a sponge city ecological roadbed structure. Background Technology
[0002] Sponge city is a modern urban development model that simulates the natural hydrological cycle system to enable cities to manage rainwater resiliently. Its core objective is to achieve the natural accumulation, infiltration, and purification of rainwater. Road surfaces are an important component of sponge cities. Roads are laid on a roadbed, which is the foundation of the track or road surface and is a geotechnical structure formed through excavation or filling. The main function of the roadbed is to provide the necessary conditions for the laying of tracks or roads and the operation of trains or vehicles, and to bear the static and dynamic loads of tracks, locomotives, vehicles, roads, and traffic loads, while transferring and diffusing the loads deep into the foundation. To meet the functions of a sponge city, the roadbed must not only meet the external bearing capacity requirements but also the infiltration function. Traditional roadbeds have poor infiltration effects. To improve this situation, a sponge city ecological roadbed structure is proposed.
[0003] As disclosed in the authorization announcement number CN221778609U, a sponge city ecological roadbed structure includes a road base layer. The inner wall of the road base layer is provided with a water storage mechanism. The water storage mechanism includes a water storage tank. A filter plate three is fixedly connected to the inner wall of the water storage tank. Filter particles are provided on the inner wall of the filter plate three. A filter plate two is fixedly connected to the top surface of the filter plate three. A filter plate one is provided on the surface of the road base layer. A water pump is fixedly connected to the inner bottom wall of the water storage tank. A water outlet pipe is fixedly connected to the outlet end of the water pump.
[0004] Although it achieves the effect of rapid rainwater circulation in the city during continuous heavy rain by coordinating the water storage tank, filter plate three, filter particles, filter plate two, filter plate one, and drainage pipe one and drainage pipe two, it increases drainage efficiency and further ensures the service life of the roadbed and the safety of urban buildings.
[0005] However, this does not solve the problem that the existing roadbed structure is not conducive to multi-stage filtration and collection of rainwater, nor to dynamic pumping and storage of rainwater, thus affecting its effectiveness. Utility Model Content
[0006] The purpose of this utility model is to provide a sponge city ecological roadbed structure to solve the problems mentioned in the background art, such as the roadbed structure being inconvenient for multi-stage filtration and collection of rainwater, and not conducive to dynamic pumping and storage of rainwater, thus affecting the effectiveness of use.
[0007] To address the technical problems mentioned in the background section, some embodiments of this application provide a sponge city ecological roadbed structure, including a roadbed body and a ditch. A ditch is provided at the center of the roadbed body, a water storage tank is provided on the outside of the roadbed body, a water storage tank is provided inside the roadbed body on one side of the ditch, a paving groove is provided inside the roadbed body on the other side of the ditch, a placement plate is provided inside the ditch, a manhole cover is provided at the top of the ditch, and both the manhole cover and the placement plate are laid inside the ditch. A filter plate is provided inside the placement plate.
[0008] Furthermore, the bottom end of the placement plate is provided with multiple sets of equally spaced water seepage holes, and the interior of the filter plate is provided with pebbles and gravel.
[0009] Furthermore, water-proof plates are symmetrically arranged on the inner wall of the laying trough, and two sets of laying frames are arranged between the two sets of water-proof plates.
[0010] Furthermore, a water pump is installed inside the water storage tank, and a water pump is installed on the outer wall of the base body on one side of the water pump, and the water pump is connected to the water pump's pumping port.
[0011] Furthermore, the inner wall of the water storage tank is provided with multiple sets of equally spaced drainage holes, and the water storage tank is connected to the trench through the drainage holes.
[0012] Furthermore, the water pump is equipped with a water outlet pipe at its outlet end, and the water outlet pipe is connected to the water storage tank.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the roadbed structure not only realizes multi-stage filtration and collection of rainwater, facilitates dynamic pumping and storage of rainwater, and makes full use of the roadbed's usable space, but also improves the effectiveness of its use.
[0014] During the paving of the roadbed, a water storage tank needs to be built next to it. A water pump is installed on the outer wall of the roadbed, and the pump is connected to the water storage tank through an outlet pipe. A pumping pipe connects the pump to the water storage tank. After the roadbed construction is completed, placement boards are stacked and laid inside the roadbed, and manhole covers are stacked and laid on the surface. In rainy weather, when rainwater mixed with debris passes through the manhole covers, the manhole covers perform primary filtration of large debris. Rainwater carrying leaves and sand flows to the surface of the filter board, where the leaves and sand are blocked and filtered. The filter board also has pebbles and gravel inside, which further filter the rainwater, preventing rainwater from carrying large amounts of sand into the trench. The filtered rainwater flows through the seepage holes to... Rainwater accumulates and flows within the trench. When rainfall is heavy and there is a lot of rainwater, it can flow through the drainage holes into the water storage tank. When the water storage tank is full, the water pump can be turned on, and the water pump will pump the rainwater in the storage tank into the outlet pipe and then into the water storage tank for storage. The water pump can be controlled by a PLC control component, thereby realizing the natural accumulation, infiltration and purification of rainwater. At the same time, the wiring, such as street light wires, can be laid on the laying frame to make full use of the space and also to protect the wiring. The waterproof plate plays a waterproof role, preventing rainwater from entering the laying trench and affecting the wires. This achieves multi-stage filtration and collection of rainwater, facilitates dynamic pumping and accumulation of rainwater, makes full use of the roadbed space, and improves the efficiency of use. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0017] In the attached diagram:
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a side sectional view of the present invention.
[0020] Figure 3 This is a three-dimensional exploded structure diagram of the present invention;
[0021] Figure 4This is a three-dimensional structural diagram of the filter plate and the placement plate of this utility model;
[0022] Figure 5 This is a side view sectional structural diagram of the filter plate of this utility model;
[0023] Figure 6 This is a three-dimensional enlarged structural diagram of the water-blocking plate of this utility model.
[0024] Figure label:
[0025] 1. Roadbed; 2. Water tank; 3. Manhole cover; 4. Placement board; 5. Trench; 6. Water storage tank; 7. Laying trench; 8. Water outlet pipe; 9. Water pump; 10. Pumping pipe; 11. Laying frame; 12. Water barrier; 13. Filter plate; 14. Seepage hole; 15. Pebbles and gravel; 16. Drainage hole. Detailed Implementation
[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0027] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0030] Please see Figures 1 to 6An embodiment of this utility model provides a sponge city ecological roadbed structure, including a roadbed body 1 and a ditch 5. The ditch 5 is provided at the center of the roadbed body 1. A water storage tank 2 is provided on the outside of the roadbed body 1. A water storage tank 6 is provided inside the roadbed body 1 on one side of the ditch 5. A paving groove 7 is provided inside the roadbed body 1 on the other side of the ditch 5. A placement plate 4 is provided inside the ditch 5. A manhole cover 3 is provided at the top of the ditch 5. Both the manhole cover 3 and the placement plate 4 are paved inside the ditch 5. A filter plate 13 is provided inside the placement plate 4. Multiple sets of equally spaced seepage holes 14 are provided at the bottom of the placement plate 4. Pebbles and gravel 15 are provided inside the filter plate 13.
[0031] Water-proof plates 12 are symmetrically arranged on the inner wall of the paving trough 7, and two sets of paving frames 11 are arranged between the two sets of water-proof plates 12. A water pumping pipe 10 is arranged inside the water storage tank 6. A water pump 9 is arranged on the outer wall of the road base body 1 on one side of the water pumping pipe 10. The water pump 9 plays a power driving role, and the water pumping pipe 10 is connected to the water pumping port of the water pump 9.
[0032] The inner wall of the water storage tank 6 is provided with multiple sets of equally spaced drainage holes 16, and the water storage tank 6 is connected to the trench 5 through the drainage holes 16. The water outlet end of the water pump 9 is provided with a water outlet pipe 8, and the water outlet pipe 8 is connected to the water storage tank 2.
[0033] During the paving of the roadbed 1, a water storage tank 2 needs to be built next to the roadbed 1. A water pump 9 is installed on the outer wall of the roadbed 1, and the water pump 9 is connected to the water storage tank 2 through the outlet pipe 8. A water pump 9 is connected to the water storage tank 6 through the pumping pipe 10. After the roadbed 1 is completed, the placement plates 4 are stacked and laid inside the roadbed 1, and the manhole covers 3 are stacked and laid on the surface of the roadbed 1. In case of rain, when rainwater mixed with debris passes through the manhole covers 3, the manhole covers 3 perform primary filtration of large debris. The rainwater carries leaves and sand to the surface of the filter plate 13, where the leaves and sand are blocked and filtered. The filter plate 13 also has pebbles and gravel 15 inside, which can further filter the rainwater, preventing the rainwater from carrying a large amount of mud and sand into the trench 5. The filtered rainwater then seeps through... Water flows from the holes 14 into the trench 5, where it accumulates and flows. When rainfall is excessive and there is a lot of rainwater, the rainwater can flow through the drainage holes 16 into the water storage tank 6. When the water storage tank 6 is full, the water pump 9 can be turned on. The water pump 9 pumps the rainwater in the water storage tank 6 into the outlet pipe 8 through the pumping pipe 10 and delivers it to the storage tank 2 for storage. The control of the water pump 9 can be accomplished by setting up a PLC control component, thereby completing the natural accumulation, infiltration and purification of rainwater. At the same time, the wiring, such as street light wires, can be laid on the laying frame 11 to make full use of the space and also to protect the wiring. The water-proof plate 12 plays a waterproof role, preventing rainwater from entering the laying trench 7 and affecting the wires. This achieves multi-stage filtration and collection of rainwater, facilitates dynamic pumping and accumulation of rainwater, makes full use of the roadbed space, and improves the efficiency of use.
[0034] Working principle: During the paving of the roadbed 1, a water storage tank 2 needs to be built next to the roadbed 1. A water pump 9 is installed on the outer wall of the roadbed 1, and the water pump 9 is connected to the water storage tank 2 through the outlet pipe 8. A water pump 9 is connected to the water storage tank 6 through the pumping pipe 10. After the roadbed 1 is completed, the placement plates 4 are stacked and laid inside the roadbed 1, and the manhole covers 3 are stacked and laid on the surface of the roadbed 1. In rainy weather, when rainwater mixed with debris passes through the manhole covers 3, the manhole covers 3 perform primary filtration of large-volume debris. The rainwater carries leaves and sand to the surface of the filter plate 13, where the leaves and sand are blocked and filtered. The filter plate 13 also has pebbles and gravel 15 inside, which can further filter the rainwater and prevent the rainwater from carrying a large amount of sand into the roadbed. Inside the trench 5, filtered rainwater flows through the infiltration holes 14 into the trench 5, where it accumulates and flows. When rainfall is excessive, rainwater can flow through the drainage holes 16 into the water storage tank 6. When the water storage tank 6 is full, the water pump 9 can be turned on, and the water pump 9 pumps the rainwater in the water storage tank 6 through the pumping pipe 10 into the outlet pipe 8 and then into the water storage tank 2 for storage. The water pump 9 can be controlled by a PLC control component, thereby achieving the natural accumulation, infiltration and purification of rainwater. At the same time, wiring, such as street light wires, can be laid on the laying frame 11 to make full use of the space and also to protect the wiring. The waterproof plate 12 serves to prevent rainwater from entering the laying trench 7 and affecting the wires. The above is the complete usage of the subgrade structure of the sponge city ecological road.
[0035] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A sponge city ecological roadbed structure, comprising a roadbed body (1) and a ditch (5), characterized in that: A trench (5) is provided at the center of the road base (1). A water storage tank (2) is provided on the outside of the road base (1). A water storage tank (6) is provided inside the road base (1) on one side of the trench (5). A paving trench (7) is provided inside the road base (1) on the other side of the trench (5). A placement plate (4) is provided inside the trench (5). A manhole cover (3) is provided at the top of the trench (5). Both the manhole cover (3) and the placement plate (4) are laid inside the trench (5). A filter plate (13) is provided inside the placement plate (4).
2. The sponge city ecological roadbed structure according to claim 1, characterized in that: The bottom of the placement plate (4) is provided with multiple sets of equally spaced seepage holes (14), and the interior of the filter plate (13) is provided with pebbles and gravel (15).
3. The sponge city ecological roadbed structure according to claim 2, characterized in that: Water-proof plates (12) are symmetrically arranged on the inner wall of the laying groove (7), and two sets of laying frames (11) are arranged between the two sets of water-proof plates (12).
4. The sponge city ecological roadbed structure according to claim 3, characterized in that: The water storage tank (6) is equipped with a water pump (10) inside. A water pump (9) is installed on the outer wall of the road body (1) on one side of the water pump (10), and the water pump (10) is connected to the water pump (9) pump port.
5. The sponge city ecological roadbed structure according to claim 4, characterized in that: The inner wall of the water storage tank (6) is provided with multiple sets of equally spaced drainage holes (16), and the water storage tank (6) is connected to the trench (5) through the drainage holes (16).
6. The sponge city ecological roadbed structure according to claim 5, characterized in that: The water pump (9) is provided with a water outlet pipe (8) at its outlet end, and the water outlet pipe (8) is connected to the water storage tank (2).