A buried drainage member and a road drainage system comprising the same
By combining underground drainage components and permeable layers, the problem of water accumulation caused by construction and settlement is solved, achieving rapid and effective road drainage, improving driving comfort and drainage efficiency, and eliminating the need for exposed drainage outlets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-06-19
Smart Images

Figure CN224378632U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of road drainage technology, specifically relating to a road drainage system with an embedded drainage component and its assembly. Background Technology
[0002] Road surface drainage has always been an important issue in road construction. How to quickly and effectively drain rainwater after the road surface is hardened is not only related to the comfort and safety of driving, but also affects the appearance of the city and even the safety of the road structure. In areas with heavy rainfall, road waterlogging is very common, especially in urban areas, where road waterlogging is a common concern because it is closely related to the public's safe and comfortable travel.
[0003] Currently, the common practice for road drainage is to install drainage outlets at regular intervals along the sides of the road. These outlets collect rainwater from the road surface and drain it through drainage pipes. This requires placing the drainage outlets in precisely the right locations, meaning that the elevation of the drainage outlets is lower than the elevation of the surrounding road surface. This is relatively easy to achieve during the design phase, but the problem lies in the actual implementation. Due to varying levels of construction control, the longitudinal and transverse slopes of the road often fail to meet the theoretical design specifications. Furthermore, settlement is common during the operation of the road system, causing the drainage outlets to no longer be located at the lowest point of the road surface area. Consequently, they fail to effectively perform their drainage function, leading to water accumulation on the road surface. Long-term water accumulation causes moisture to seep into the roadbed, softening the roadbed, increasing road settlement, and exacerbating water accumulation in the affected areas, further rendering the drainage outlets ineffective.
[0004] One way to solve the above problems is to increase the density of drainage outlets. This can improve drainage efficiency and prevent the outlets from failing even after road subsidence, thus preventing large-scale water accumulation on the road. However, this method cannot completely solve the water accumulation problem. In addition, increasing the number of drainage outlets will increase the cost, and the driving comfort at the drainage outlets will be extremely poor. Utility Model Content
[0005] The purpose of this utility model is to overcome the existing technical defects and provide a road drainage system with a buried drainage component and its assembly, which can achieve rapid and effective drainage and solve the problem of water accumulation on the road caused by the inability to drain water quickly or the mismatch between the location of the drainage outlet and the low point of the road.
[0006] Firstly, in order to solve the above-mentioned technical problems, this utility model provides an embedded drainage component, including a main body, the interior of which is provided with at least one drainage cavity along its length, and the upper end of the main body is recessed along its length with at least one water collection groove corresponding to the drainage cavity, and a plurality of drainage pipes connecting the water collection groove and the drainage cavity are provided.
[0007] Furthermore, the interior of the main body is provided with two spaced-apart first drainage chambers and second drainage chambers along its length. The upper end of the main body is recessed along its length with two corresponding first water collecting grooves and second water collecting grooves located above the first drainage chambers and second drainage chambers, respectively. A plurality of first drainage pipes connecting the first water collecting groove and the first drainage chamber are spaced apart along their length, and a plurality of second drainage pipes connecting the second water collecting groove and the second drainage chamber are spaced apart along their length.
[0008] Furthermore, a plurality of third drainage pipes, arranged in a C-shape and spaced apart along the length of the first drainage cavity, are provided on the side wall of the first water collection groove away from the second water collection groove.
[0009] Furthermore, a plurality of fourth drainage pipes, arranged in a C-shape and spaced apart along the length of the second water collection groove, are provided on the side wall of the second water collection groove away from the first water collection groove and connected to the second drainage cavity.
[0010] Furthermore, the upper sides and the middle of the main body are provided with water collection groove protrusions along its length, and a first water collection groove and a second water collection groove are formed between two adjacent water collection groove protrusions respectively.
[0011] Furthermore, the main body is provided with a number of fifth drainage pipes that are spaced apart along its length and connect the two drainage chambers and the two water collection grooves.
[0012] Furthermore, the fifth drainage pipe is I-shaped, with two inlets at the upper end that are respectively connected to the two sides of the tenon of the water collection trough in the middle, and two outlets at the lower end that are respectively connected to the side walls of the two drainage chambers.
[0013] Furthermore, each drainage pipe has a permeable cover at the inlet at the end away from the two drainage chambers, through which water is supplied. This permeable cover is preferably a grating or wire mesh.
[0014] Secondly, this utility model also provides a road drainage system, including a first drainage structure buried on both sides of the road surface and extending along the length of the road, and a plurality of second drainage structures buried at intervals in the road surface and extending along the width of the road. The first drainage structure and the second drainage structure are both continuously laid using buried drainage components as described in any one of the first aspects, and the upper ends of the first drainage structure and the second drainage structure are both covered with a permeable layer that covers the water collection groove.
[0015] Furthermore, the road drainage system also includes several third drainage structures that are intermittently buried in the road surface and extend along the length of the road. Each of the third drainage structures is continuously laid using the buried drainage components described in any of the first aspects, and the upper end of each third drainage structure is covered with a permeable layer that covers the water collection groove.
[0016] Furthermore, the permeable layer is asphalt concrete.
[0017] This utility model has the following beneficial effects:
[0018] (1) The buried drainage component has an internal drainage chamber and a water collection groove at the top. When in use, it can be buried under the road surface in both the horizontal and vertical directions. Only a permeable layer needs to be laid on the top of the buried drainage component to allow water on the road to seep down from the permeable layer and enter the drainage chamber through the drainage pipe. Compared with the existing drainage method with drainage outlets in the middle, it is less affected by road settlement and can achieve fast and effective drainage. It solves the problem of water accumulation caused by the inability to drain quickly or the mismatch between the location of the drainage outlet and the low point of the road. Moreover, without drainage outlets, the road surface is flat, which can effectively improve driving comfort.
[0019] (2) Secondly, the structure of double drainage chamber and double water collection groove is adopted. While ensuring the drainage volume inside the drainage component, the partition between the two drainage chambers can effectively improve its strength and reliability, and avoid damage to it when it is arranged laterally and / or longitudinally on the road due to the heavy pressure of the car.
[0020] (3) The buried drainage component can be mass-produced in the factory. It can be preferably made of economical reinforced concrete, or high-performance concrete or plastic according to actual needs. During on-site installation, it can be quickly installed by segment assembly.
[0021] (4) After the buried drainage components are installed, the road still uses integral asphalt paving. The conventional asphalt concrete at the top of the buried drainage components is replaced with a highly permeable permeable layer (such as permeable asphalt concrete) to achieve concealed drainage. The road drainage system is integrated along the longitudinal and transverse directions of the entire road, which can achieve efficient and rapid drainage of the entire road surface. Moreover, this drainage system does not require the installation of exposed drainage outlets or drainage manhole covers on the road. While achieving rapid drainage of the entire road surface, it also ensures the comfort of driving, achieving multiple benefits.
[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description
[0023] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute an undue limitation of the present invention. In the drawings:
[0024] Figure 1 This is a cross-sectional schematic diagram of the embedded drainage component in the embodiment;
[0025] Figure 2 This is a schematic diagram of the road drainage system in Example 2;
[0026] Figure 3 This is a schematic diagram of the transverse cross-section of the road drainage system in Example 2;
[0027] Figure 4 This is a schematic diagram of the buried drainage component after a permeable layer has been laid on top in Example 2. Detailed Implementation
[0028] To better understand the technical content of this utility model, the following will further introduce and explain this utility model in conjunction with the accompanying drawings and specific embodiments. It should be noted that if there are descriptions such as "first" and "second" in the text, they are used to distinguish different components, etc., and do not represent the order of priority, nor do they limit "first" and "second" to be different types.
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 1
[0031] like Figure 1As shown in the figure, the embedded drainage component 200 of this embodiment includes a main body 2 cast from reinforced concrete. The interior of the main body 2 has two first drainage chambers 20 and second drainage chambers 21 spaced apart along its length. The upper end of the main body 2 has two recessed water collection grooves 22 and 23, respectively located above the first drainage chambers 20 and 21. A plurality of first drainage pipes 24 connecting the first drainage chamber 20 and the first water collection groove 22 are spaced apart along its length. A plurality of second drainage pipes 25 connecting the second drainage chamber 21 and the second water collection groove 23 are spaced apart along its length, facilitating the entry of water from outside the embedded drainage component into the two drainage chambers through the first drainage pipes 24 and the second drainage pipes 25. In this structure, the embedded drainage component... With its internal drainage chamber and upper water collection groove, this system can be buried under the road surface both horizontally and vertically. A permeable layer is simply laid on top of the buried drainage component, allowing water from the road to seep downwards through the permeable layer and enter the drainage chamber via drainage pipes. Compared to existing methods with intermediate drainage outlets, it is less affected by road settlement, achieving rapid and effective drainage. This solves the problem of water accumulation caused by slow drainage or misalignment of drainage outlets with the lowest points of the road. Furthermore, the absence of drainage outlets results in a smooth road surface, effectively improving driving comfort. Secondly, the double drainage chamber and double water collection groove structure ensures sufficient internal drainage while the partition between the two drainage chambers effectively enhances its strength and reliability, preventing damage from heavy vehicle pressure when laid laterally on the road.
[0032] In this embodiment, the upper sides and the middle of the main body 2 are provided with water collection groove protrusions 26 along their length, and a first water collection groove 22 and a second water collection groove 23 are formed between two adjacent water collection groove protrusions 26 respectively. In specific applications, conventional concrete or permeable asphalt concrete will also be laid at the top of the water collection groove protrusions 26 and connected with the concrete on the road, so that the entire drainage component is buried under the road and forms a hidden drainage structure.
[0033] In one embodiment, a plurality of C-shaped third drainage pipes 27 are provided on the side wall of the first water collecting groove 22 away from the second water collecting groove 23, communicating with the first drainage cavity 20. That is, the third drainage pipes 27 are provided in the water collecting groove protrusion 26 adjacent to the first water collecting groove 22 on the outer side. The water inlet of the upper end of the third drainage pipe 27 is connected to the outer wall of the first water collecting groove 22, and the water outlet of the lower end of the third drainage pipe 27 is connected to the side wall of the first drainage cavity 20. That is, the water entering the first water collecting groove 20 can be discharged into the first drainage cavity 20 not only through the first drainage pipe 24, but also through the third drainage pipes 27 provided on the side, thereby improving the drainage volume and drainage efficiency.
[0034] In one embodiment, a plurality of fourth drainage pipes 28, arranged in a C-shape and spaced along the length of the second water collection groove 23, are connected to the second drainage cavity 21 on the side wall away from the first water collection groove 22. That is, the fourth drainage pipes 28 are provided in the water collection groove protrusion 26 adjacent to the second water collection groove 23 on the outer side. The water inlet at the upper end of the fourth drainage pipe 28 is connected to the outer wall of the second water collection groove 23, and the water outlet at the lower end of the fourth drainage pipe 28 is connected to the side wall of the second drainage cavity 21. That is, the water entering the second water collection groove 23 can be discharged into the second drainage cavity 21 not only through the second drainage pipe 25, but also through the fourth drainage pipes 28 provided on the side, which further improves the drainage volume and drainage efficiency.
[0035] In one embodiment, such as Figure 1 As shown, the main body 2 has several fifth drainage pipes 29 arranged at intervals along its length and connecting two drainage chambers and two water collection grooves in the middle. The fifth drainage pipes 29 are I-shaped, that is, the fifth drainage pipes 29 have four connected inlets or outlets, including two inlets and two outlets. The two inlets at the upper end of the fifth drainage pipes 29 are respectively connected to the two sides of the tenon 26 of the water collection groove in the middle, so that the upper end of the fifth drainage pipes 29 is connected to the first drainage chamber 20 and the second drainage chamber 21. The two outlets at the lower end of the fifth drainage pipes 29 are respectively connected to the side walls of the two drainage chambers, so that the water entering the first water collection groove 22 and the second water collection groove 23 can enter the two drainage chambers at the same time, avoiding the situation where one drainage chamber has more water flowing while the other drainage chamber has less water flowing, which would affect the downward infiltration and discharge of water in local areas of the road surface.
[0036] In one embodiment, a permeable pipe cover 18 for water supply is provided at the inlet of each drainage pipe at the end away from the two drainage chambers. The permeable pipe cover 18 is preferably a grid or wire mesh, used to prevent particles from entering the drainage pipe during asphalt concrete paving and causing blockage.
[0037] In other embodiments, when the embedded drainage components are made by pouring concrete, a water collection pipe is pre-installed at the location corresponding to each drainage pipe, thereby forming the required drainage pipes using the embedded water collection pipes.
[0038] In other embodiments, when prefabricating embedded drainage components, a water collection pipe needs to be installed at intervals of 0.2 to 0.6 m, that is, the interval between drainage pipes is 0.2 to 0.6 m.
[0039] In other embodiments, the length of a single embedded drainage component can be 1 to 10 m. When the installation is mainly done manually, the smaller value is used for the segments; when the installation is mainly done mechanically, the prefabricated length of the drainage component can be larger. The size of the two drainage chambers in the embedded drainage component can be adjusted appropriately according to the drainage volume requirements.
[0040] In other embodiments, the embedded drainage components may also be made of other materials with sufficient strength (such as steel fiber reinforced concrete).
[0041] Example 2
[0042] like Figures 1 to 4 As shown in this embodiment, a road drainage system includes a first drainage structure 201 buried on both sides of the road surface and extending along the length of the road, and several second drainage structures 202 buried at intervals in the road surface and extending along the width of the road. The two ends of the second drainage structures 202 are respectively connected to the first drainage structures 201 on both sides. Both the first drainage structures 201 and the second drainage structures 202 are continuously laid using the buried drainage components 200 as described in Embodiment 1, and the upper ends of both the first drainage structures 201 and the second drainage structures 202 are covered with a permeable layer 203 (e.g., a permeable layer covering the entire surface of each layer). Figure 4 As shown in the diagram, a permeable layer 203 is laid in two water collection grooves. The permeability of the permeable layer allows water from the road surface to infiltrate downwards and then be discharged into the two drainage chambers through various drainage pipes. In this structure, after the buried drainage components are in place, the road still uses integral asphalt paving. The conventional asphalt concrete at the top of the buried drainage components is replaced with a highly permeable layer (such as permeable asphalt concrete) to achieve concealed drainage. The road drainage system is integrated along the longitudinal and transverse directions of the entire road, which can achieve efficient and rapid drainage of the entire road surface. Moreover, this drainage system does not require exposed drainage outlets or drainage manhole covers on the road. While achieving rapid drainage of the entire road surface, it also ensures the comfort of driving, achieving multiple benefits.
[0043] In one embodiment, the road drainage system further includes several third drainage structures 204 that are intermittently buried in the road surface and extend along the length of the road. That is, the third drainage structures 204 are arranged parallel to the first drainage structures 201 and are connected to the second drainage structures 202, so that the first drainage structures 201, the second drainage structures 202 and the third drainage structures 204 form a crisscrossing and interconnected road drainage system. The third drainage structure is also continuously laid using the buried drainage components 200 as described in Embodiment 1, and the upper end of each third drainage structure 204 is covered with a permeable layer 203 that covers its entire surface.
[0044] In one embodiment, an asphalt layer 206 connected to a permeable layer 203 is laid on the surface of the roadbed 205 between two adjacent drainage structures, and the entire road is arc-shaped with a high center and low sides, which facilitates the flow of water on the road surface to both sides and improves the driving safety of the road in rainy weather.
[0045] In other embodiments, the permeable layer 203 is asphalt concrete (i.e., permeable asphalt concrete).
[0046] In other embodiments, the construction steps of the road drainage system are as follows:
[0047] Step 1: Prefabricate the embedded drainage components of the designed dimensions in the factory. When casting the embedded drainage components, pre-bury water collection pipes at the corresponding locations of each drainage pipe, thereby using the buried water collection pipes to form the required drainage pipes.
[0048] Step 2: Compact the roadbed and mark the installation locations of the longitudinal and transverse embedded drainage components;
[0049] Step 3: Bury drainage components at the designated locations to form the first, second, and third drainage structures;
[0050] Step 4: Construct the roadbed structure. The roadbed structure surface is divided into sections and sections for pouring and curing asphalt pavement. A permeable layer (i.e., permeable asphalt concrete) is then laid on the surface of the embedded drainage components to connect with the asphalt pavement.
[0051] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A buried drainage component, characterized in that, The device includes a main body, the interior of which has at least one drainage cavity along its length, and the upper end of the main body has at least one water collection groove corresponding to the drainage cavity. A plurality of drainage pipes connecting the water collection groove and the drainage cavity are provided.
2. The embedded drainage component as described in claim 1, characterized in that, The main body has two spaced-apart first drainage chambers and second drainage chambers inside its interior. The upper end of the main body has two recessed first water collection grooves and second water collection grooves respectively located above the first drainage chambers and second drainage chambers. A plurality of first drainage pipes connecting the first water collection groove and the first drainage chamber are spaced apart along its length. A plurality of second drainage pipes connecting the second water collection groove and the second drainage chamber are spaced apart along its length.
3. The embedded drainage component as described in claim 2, characterized in that, A plurality of third drainage pipes are provided on the side wall of the first water collection groove away from the second water collection groove, which is connected to the first drainage cavity. These pipes are spaced apart along the length of the first drainage groove.
4. The embedded drainage component as described in claim 3, characterized in that, A plurality of fourth drainage pipes are provided on the side wall of the second water collection groove away from the first water collection groove, which is connected to the second drainage cavity. These fourth drainage pipes are spaced apart along the length of the second drainage groove.
5. The embedded drainage component as described in claim 4, characterized in that, The upper sides and middle of the main body are provided with water collection groove protrusions along its length, and a first water collection groove and a second water collection groove are formed between two adjacent water collection groove protrusions.
6. The embedded drainage component as described in claim 5, characterized in that, The main body has a number of fifth drainage pipes arranged at intervals along its length and connecting two drainage chambers and two water collection grooves. The fifth drainage pipes are I-shaped. The upper end of the fifth drainage pipes has two water inlets that are respectively connected to the two sides of the tenon of the water collection groove in the middle. The lower end of the fifth drainage pipes has two water outlets that are respectively connected to the side walls of the two drainage chambers.
7. The embedded drainage component as described in claim 6, characterized in that, Each drainage pipe has a permeable pipe cover at the inlet end away from the two drainage chambers, allowing water to pass through.
8. A road drainage system, characterized in that, It includes a first drainage structure buried on both sides of the road surface and extending along the length of the road, and a number of second drainage structures buried at intervals in the road surface and extending along the width of the road. The first drainage structure and the second drainage structure are both continuously laid using the buried drainage components as described in any one of claims 1-7, and the upper ends of the first drainage structure and the second drainage structure are both covered with a permeable layer that covers the water collection groove.
9. The road drainage system as described in claim 8, characterized in that, It also includes several third drainage structures that are intermittently buried in the road surface and extend along the length of the road. The third drainage structures are all continuously laid using the buried drainage components as described in any one of claims 1-7, and the upper end of each third drainage structure is covered with a permeable layer that covers the water collection groove.
10. The road drainage system as described in claim 9, characterized in that, The permeable layer is permeable asphalt concrete.