A concealed road drainage system

Abstract

This utility model discloses a concealed road drainage system, including a first drainage structure longitudinally buried on both sides of the road surface and several second drainage structures laterally buried in the road surface and connected to the first drainage structure. The first and second drainage structures are respectively constructed by continuously laying first and second drainage components. The first drainage component includes a first main body with a first drainage cavity inside, and a first water-collecting groove communicating with the first drainage cavity at its upper end. The second drainage component includes a second main body with at least one drainage cavity inside, and at least one water-collecting groove corresponding to and communicating with each internal drainage cavity at its upper end. A permeable layer is laid on the upper end of both the first and second drainage structures. This utility model can achieve rapid and effective drainage, solving the problem of water accumulation on roads caused by the inability to drain water quickly or by the misalignment of drainage outlets with the lowest points of the road.

Description

Technical Field

[0001] This utility model belongs to the field of road drainage technology, specifically relating to a concealed road drainage system. 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.

[0005] Secondly, existing drainage pipes located on both sides of the road are usually buried under the roadbed, with drainage outlets only set on the road for drainage. The first drainage component that constitutes the drainage pipe is usually a conventional hollow column structure with a single function: drainage. When there are sidewalks or roadbeds that are higher than the road surface on both sides of the road, additional curb stones need to be laid between the lane and the sidewalk or roadbed (as shown in the previously disclosed Chinese patent CN208649830U), resulting in a complex road paving structure, a long process, and troublesome procedures. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a concealed road drainage system that can achieve rapid and effective drainage, solving the problem of water accumulation on roads caused by the inability to drain water quickly or by the misalignment of drainage outlets with the lowest points of the road.

[0007] Firstly, to solve the aforementioned technical problems, this utility model provides a concealed 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 several second drainage structures buried at intervals in the road surface and extending along the width of the road. The two ends of the second drainage structures are respectively connected to the first drainage structures on both sides. The first drainage structure is continuously laid using a first drainage component, which includes a first main body. The interior of the first main body has a first drainage cavity along its length, and the upper end of the first main body has a first water-collecting groove recessed along its length. Several first drainage pipes connecting the first water-collecting groove and the first drainage cavity are provided between them. The second drainage structure is continuously laid using a second drainage component, which includes a second main body. The interior of the second main body has at least one drainage cavity along its length, and the upper end of the second main body has at least one water-collecting groove corresponding to each drainage cavity. Several drainage pipes connecting the water-collecting groove and the drainage cavity are provided between them. Furthermore, a permeable layer is laid on the upper ends of both the first and second drainage structures.

[0008] Furthermore, the upper outer side of the first main body is provided with a protrusion as a curb stone, and the first drainage components in the first drainage structure on both sides are symmetrically arranged; the upper part of the first main body away from the protrusion is provided with a first water collection groove tenon along its length, the first water collection groove tenon and the protrusion form the first water collection groove, and the top surface of the protrusion is higher than the top surface of the first water collection groove tenon.

[0009] Furthermore, a plurality of second drainage pipes are provided between the inner side of the first water collection trough protrusion and the first drainage cavity, arranged at intervals along its length; a plurality of third drainage pipes are provided between the inner side of the protrusion and the first drainage cavity, arranged at intervals along its length, wherein the inlet of the third drainage pipe located on the inner side of the protrusion is higher than the top surface of the first water collection trough protrusion; a plurality of fourth drainage pipes are provided between the outer side of the protrusion and the first drainage cavity, arranged at intervals along its length, wherein the end of the fourth drainage pipe furthest from the first drainage cavity is the inlet.

[0010] Furthermore, a walkway is provided on the outer side of the first drainage structure on both sides, and a water leakage groove is formed between the walkway and the first drainage component to expose the inlet of the fourth drainage pipe. A permeable layer is provided in the water leakage groove.

[0011] Furthermore, the interior of the second main body is provided with two spaced-apart second drainage chambers and third drainage chambers. The upper end of the second main body is recessed along its length with two corresponding second and third water collection grooves located above the second and third drainage chambers, respectively. A plurality of fifth drainage pipes connecting the second and third drainage chambers are spaced along its length between the second water collection grooves and the second drainage chambers. A plurality of sixth drainage pipes connecting the third water collection grooves and the third drainage chambers are spaced along its length between the third water collection grooves and the third drainage chambers.

[0012] Furthermore, the upper sides and the middle of the second main body are provided with second water collection groove protrusions along their length, and a second water collection groove and a third water collection groove are formed between two adjacent second water collection groove protrusions respectively; a plurality of seventh drainage pipes are provided on the side wall away from the third water collection groove of the second water collection groove, which is connected to the second drainage cavity; a plurality of eighth drainage pipes are provided on the side wall away from the second water collection groove of the third water collection groove, which is connected to the third drainage cavity.

[0013] Furthermore, the second main body is provided with a number of ninth drainage pipes that are spaced apart along its length and connect the two drainage chambers and the two water collection grooves. The ninth drainage pipes are I-shaped. The upper end of the ninth drainage pipes is provided with two water inlets that are respectively connected to the two sides of the protrusion of the second water collection groove in the middle. The lower end of the ninth drainage pipes is provided with two water outlets that are respectively connected to the side walls of the second drainage chamber and the third drainage chamber.

[0014] Furthermore, each drainage pipe has a permeable pipe cover at the inlet end away from the drainage chamber, which is preferably a grating or wire mesh.

[0015] Furthermore, the concealed 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. The third drainage structures are connected to the second drainage structures. The third drainage structures are all continuously laid using the second drainage components, and the upper end of each third drainage structure is covered with a permeable layer.

[0016] Furthermore, the permeable layer is asphalt concrete.

[0017] This utility model has the following beneficial effects:

[0018] (1) After the drainage components are buried in place, the road still uses integral asphalt pavement. The conventional asphalt concrete at the top of the 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 setting 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.

[0019] (2) By setting a protrusion as a curbstone on one side of the upper end of the first drainage component, it has a dual function. It can use the drainage pipe and the internal first drainage chamber to carry out the drainage function, and the protrusion on the side can also be used as a road curbstone. That is, the first drainage component and the road curbstone (i.e., curbstone) are integrated into one structure, which makes it convenient to form a drainage pipe system and a road curbstone structure after it is paved. There is no need to pave the road curbstone (i.e., curbstone) separately. Therefore, the integrated first drainage component structure simplifies the paving structure and paving process and is convenient to lay.

[0020] (3) By setting a fourth drainage pipe on the outside of the protrusion and a permeable layer that works with the fourth drainage pipe on the sidewalk, the protrusion can serve as a drainage channel for the sidewalk while fulfilling the function of the road curbstone. This allows the first drainage component and the hidden road drainage system it forms to collect water flow from both the sidewalk and the roadway, thus achieving a composite function.

[0021] (4) The second drainage component adopts a structure of double drainage chambers and double water collection grooves. 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 from heavy vehicle pressure when it is arranged laterally and / or longitudinally on the road.

[0022] (5) Both the first and second drainage components can be mass-produced in the factory. They can be preferably made of economical reinforced concrete, or high-performance concrete or plastics can be made according to actual needs. During on-site installation, they can be assembled in a segmented manner to achieve rapid installation.

[0023] 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

[0024] 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:

[0025] Figure 1 This is a schematic cross-sectional view of the first drainage component that also serves as a road curb in Example 1;

[0026] Figure 2 This is a cross-sectional schematic diagram of the second drainage component in Example 2;

[0027] Figure 3 This is a schematic diagram of the concealed road drainage system in Example 3;

[0028] Figure 4 This is a schematic diagram of the transverse cross-section of the concealed road drainage system in Example 3;

[0029] Figure 5 This is a schematic diagram of the second drainage component after a permeable layer has been laid on its upper end in Example 3;

[0030] Figure 6 This is a partial schematic diagram of the relationship between the first drainage component and the sidewalk in Example 3;

[0031] Figure 7 for Figure 6 A schematic diagram showing the process after removing the permeable layer inside the drainage channel. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] Example 1

[0035] like Figure 1As shown in the figure, the first drainage component 100, which also serves as a road curbstone, includes a first main body 1 cast from reinforced concrete. The first main body 1 has a first drainage cavity 10 along its length, preferably circular or square, serving as a drainage channel. A first water-collecting groove 11 is recessed along its length at the upper end of the first main body 1. Several rows of first drainage pipes 12, spaced apart along the length of the first water-collecting groove 11 and the first drainage cavity 10, connect the two, facilitating the entry of water from outside the first drainage component into the first drainage cavity 10 through the first drainage pipes 12. A protruding portion 13, serving as a curbstone, protrudes along the length of one side of the upper end of the first main body 1. In this structure, by providing a protruding portion serving as a curbstone on one side of the upper end of the first main body of the first drainage component, it has a dual function: it can utilize the drainage pipes and the internal first drainage cavity for drainage, while the protruding portion on the side can also be used as a road curbstone. The first drainage component and the road curb (i.e., kerb) form an integrated structure, which facilitates the simultaneous formation of a drainage pipe system and a road curb structure after its paving, eliminating the need for additional road curb (i.e., kerb) paving. Therefore, this integrated first drainage component structure simplifies the paving structure and process, and is convenient to install. Secondly, a permeable layer (such as permeable asphalt concrete) can be laid at the first water collection groove, allowing water on the road to permeate downwards through the permeable layer and enter the first drainage chamber along the first drainage pipe. After the first drainage component is continuously laid to form a concealed road drainage system, drainage can be carried out on both sides of the road surface along the entire length of the road. Compared with the existing method of setting drainage outlets in the middle, it is less affected by road settlement, can achieve fast and effective drainage, and solves the problem of water accumulation caused by the inability to drain quickly or the misalignment of drainage outlets with the low point of the road. Moreover, without drainage outlets, the road surface is flat, which can effectively improve driving comfort.

[0036] In this embodiment, a first water collection groove tenon 14 is provided along the length of the side of the upper end of the first main body 1 away from the protrusion 13. A first water collection groove 11 is formed between the first water collection groove tenon 14 and the protrusion 13, and the top surface of the protrusion 13 is higher than the top surface of the first water collection groove tenon 14, that is, the height of the protrusion 13 is higher than the height of the first water collection groove tenon 14. In specific applications, conventional concrete or permeable asphalt concrete will also be laid at the top of the first water collection groove tenon 14 and connected with the concrete on the road.

[0037] In one embodiment, a plurality of second drainage pipes 15 arranged in a C-shape and spaced apart along the length of the inner side of the first water collection groove protrusion 14 are provided between the first drainage cavity 10 and the first water collection groove protrusion 14. That is, water entering the first water collection groove 11 can be discharged into the first drainage cavity 10 through the first drainage pipe 12 in addition to being discharged into the first drainage cavity 10 through the second drainage pipes 15 arranged on the side, thereby improving the drainage volume and drainage efficiency.

[0038] In one embodiment, a plurality of third drainage pipes 16, arranged at right angles and spaced along the length of the inner side of the protrusion 13, are provided between the inner side of the protrusion 13 and the first drainage cavity 10. The height of the inlet of the third drainage pipe 16 located inside the protrusion 13 is higher than the top surface of the first water collection groove protrusion 14, and there is a certain height difference between the two. Thus, in practical applications, after a permeable layer (such as permeable asphalt concrete) is laid on the top surface of the first water collection groove protrusion 14 and in the first water collection groove 11, the height of the inlet of the third drainage pipe 16 is higher than or flush with the surface of the permeable layer. This facilitates the drainage of road surface water into the first drainage cavity 10 when it rains heavily and the water cannot be completely and timely drained into the first drainage cavity through the permeable layer. This further improves the drainage volume and drainage efficiency and reduces the problem of water accumulation.

[0039] In one embodiment, a plurality of fourth drainage pipes 17, arranged at intervals along the length of the protrusion 13 and in an S-shape or right angle, are connected between the outer side of the protrusion 13 and the first drainage cavity 10. The end of the fourth drainage pipe 17 away from the first drainage cavity 10 is the water inlet. The protrusion is used as a curb (i.e., roadside stone), that is, its outer side is the sidewalk or roadbed. Thus, the water on the sidewalk or roadbed can be discharged downward into the first drainage cavity 10 by the fourth drainage pipes 17. This allows the first drainage component and the concealed road drainage system it forms to collect water flow from both the sidewalk and the roadway, achieving a composite function.

[0040] In one embodiment, each drainage pipe is provided with a permeable pipe cover 18 at the water inlet at the end away from the first drainage chamber 10, through which water is supplied. The permeable pipe cover 18 is preferably a grid or wire mesh, used to prevent particles from entering the drainage pipe and causing blockage during asphalt concrete paving.

[0041] In one embodiment, the inner top of the protrusion 13 has a rounded chamfered structure.

[0042] In other embodiments, when the first drainage component is made by pouring concrete, a water collection pipe is pre-embedded at the location corresponding to each drainage pipe, thereby forming the required drainage pipes using the buried water collection pipes.

[0043] In other embodiments, when prefabricating the first drainage component, 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.

[0044] In other embodiments, the length of a single first 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 first drainage cavity in the first drainage component can be adjusted appropriately according to the drainage volume requirements.

[0045] In other embodiments, the first drainage component may also be made of other materials with sufficient strength (such as steel fiber reinforced concrete).

[0046] Example 2

[0047] like Figure 2 As shown in the figure, the second drainage component 200 of this embodiment includes a second main body 2 cast from reinforced concrete. The interior of the second main body 2 has two second drainage chambers 20 and a third drainage chamber 21 spaced apart along its length. The upper end of the second main body 2 has two recessed water-collecting grooves 22 and 23 respectively located above the second drainage chambers 20 and 21. A plurality of fifth drainage pipes 24 connecting the second drainage chambers 20 and 22 are spaced apart along the length of the second drainage grooves 22 and 20, and a plurality of sixth drainage pipes 25 connecting the third drainage chambers 21 and 30 are spaced apart along the length of the third drainage grooves 23 and 23, facilitating the entry of water from outside the second drainage component into the two drainage chambers through the fifth drainage pipes 24 and 25 respectively. In this structure, the second drainage component... The component, with its internal drainage chamber and upper water collection groove, can be buried under the road surface in both the transverse and longitudinal directions. Only a permeable layer needs to be laid on top of the second drainage component, allowing water from the road to permeate downwards through the permeable layer and enter the drainage chamber through the drainage pipe. 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 the inability to drain water quickly or by the 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 drainage capacity within the drainage component, while the separation between the two drainage chambers effectively improves its strength and reliability, preventing damage from heavy vehicle pressure when laid laterally on the road.

[0048] In this embodiment, the upper sides and the middle of the second main body 2 are provided with second water collection groove protrusions 26 along their length, and a second water collection groove 22 and a third water collection groove 23 are formed between two adjacent second water collection groove protrusions 26 respectively. In specific applications, conventional concrete or permeable asphalt concrete will also be laid at the top of the second 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.

[0049] In one embodiment, a plurality of seventh drainage pipes 27, arranged in a C-shape and spaced apart along the length of the second water collection groove 22, are provided on the side wall of the second water collection groove 22 away from the third water collection groove 23 and connected to the second drainage cavity 20. That is, the seventh drainage pipes 27 are provided in the second water collection groove tenon 26 adjacent to the second water collection groove 22 on the outer side. The water inlet at the upper end of the seventh drainage pipe 27 is connected to the outer wall of the second water collection groove 22, and the water outlet at the lower end of the seventh drainage pipe 27 is connected to the side wall of the second drainage cavity 20. That is, the water entering the second water collection groove 20 can be discharged into the second drainage cavity 20 not only through the fifth drainage pipe 24, but also through the seventh drainage pipe 27 provided on the side, thereby improving the drainage volume and drainage efficiency.

[0050] In one embodiment, a plurality of eighth drainage pipes 28, arranged in a C-shape and spaced apart along the length of the third water collection groove 23, are connected to the third drainage cavity 21 on the side wall away from the second water collection groove 22. That is, the eighth drainage pipe 28 is provided in the second water collection groove protrusion 26 adjacent to the third water collection groove 23 on the outer side. The water inlet at the upper end of the eighth drainage pipe 28 is connected to the outer wall of the third water collection groove 23, and the water outlet at the lower end of the eighth drainage pipe 28 is connected to the side wall of the third drainage cavity 21. That is, in addition to being discharged into the third drainage cavity 21 through the sixth drainage pipe 25, the water entering the third water collection groove 23 can also be discharged into the third drainage cavity 21 through the eighth drainage pipe 28 provided on the side, which further improves the drainage volume and drainage efficiency.

[0051] In one embodiment, such as Figure 1 As shown, the second main body 2 has several ninth drainage pipes 29 arranged at intervals along its length and connecting two drainage chambers and two water collection grooves in the middle. The ninth drainage pipes 29 are I-shaped, that is, the ninth drainage pipes 29 have four connected inlets or outlets, including two inlets and two outlets. The two inlets at the upper end of the ninth drainage pipes 29 are respectively connected to the two sides of the protrusion 26 of the second water collection groove in the middle, so that the upper end of the ninth drainage pipes 29 is connected to the second drainage chamber 20 and the third drainage chamber 21. The two outlets at the lower end of the ninth drainage pipes 29 are respectively connected to the side walls of the two drainage chambers, so that the water entering the second water collection groove 22 and the third 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.

[0052] In one embodiment, each drainage pipe is provided with a permeable pipe cover 18 at the water inlet at the end away from the second and third drainage chambers, through which water is supplied. The permeable pipe cover 18 is preferably a grid or wire mesh, used to prevent particles from entering the drainage pipe and causing blockage during asphalt concrete paving.

[0053] In other embodiments, when the second drainage component is made by pouring concrete, a water collection pipe is pre-embedded at the location corresponding to each drainage pipe, thereby forming the required drainage pipes using the buried water collection pipes.

[0054] In other embodiments, when prefabricating the second drainage component, 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.

[0055] In other embodiments, the length of a single second 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 second drainage component can be adjusted appropriately according to the drainage volume requirements.

[0056] In other embodiments, the second drainage component may also be made of other materials with sufficient strength (such as steel fiber reinforced concrete).

[0057] Example 3

[0058] like Figures 1 to 7 As shown in this embodiment, a concealed 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. The first drainage structures 201 are all continuously laid using the first drainage components 100 as described in Embodiment 1. The first drainage components 100 in the first drainage structures on both sides are arranged symmetrically on both sides, with the protrusions 13 in the first drainage components 100 located on the outer side, i.e., the portion between the protrusions on both sides is the road portion. The second drainage structures 202 are all continuously laid using the second drainage components 200 as described in Embodiment 2, 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., ...). Figure 4 As shown), only the protruding part is exposed and used as a road curb. That is, the permeable layer 203 is laid in the water collection groove of the two drainage components. The permeability of the permeable layer allows the water on the road surface to infiltrate downward and then be discharged into the two drainage chambers through the drainage pipes. In this structure, after the drainage components are buried in place, the road still uses integral asphalt paving. The conventional asphalt concrete at the upper part of the second drainage component is replaced with a highly permeable permeable layer (such as permeable asphalt concrete) to achieve concealed drainage. The road drainage system is integrated in 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 setting 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.

[0059] In one embodiment, such as Figures 3 to 4 As shown, the road drainage system also 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 second drainage component 200 as described in Embodiment 2, and the upper end of each third drainage structure 204 is covered with a permeable layer 203 that covers its entire surface.

[0060] In one embodiment, such as Figures 6 to 7 As shown, a sidewalk 101 is provided on the outer side of the first drainage structure 201 on both sides. A water leakage groove 102 is formed between the sidewalk 101 and the first drainage component 100 to expose the water inlet of the fourth drainage pipe 17. A permeable layer 203 is provided in the water leakage groove 102, so that water on the sidewalk can permeate downward through the permeable layer and be discharged into the first drainage chamber from the fourth drainage pipe 17.

[0061] In one embodiment, such as Figures 4 to 7 As shown, 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; the roadbed surface of the sidewalk 101 is paved with a brick layer 103 or an asphalt layer, and a drainage groove 102 is formed between the brick layer and the protrusion 13, and the surface of the brick layer is flush with or slightly higher than the top surface of the protrusion, so that the outer side of the sidewalk and the protrusion form a certain angle, which facilitates the flow of water on the sidewalk to the permeable layer at the drainage groove 102, and after penetrating downwards, it enters the first drainage chamber 10 through the fourth drainage pipe 17.

[0062] In other embodiments, the permeable layer 203 is asphalt concrete (i.e., permeable asphalt concrete).

[0063] In other embodiments, the construction steps of the road drainage system are as follows:

[0064] Step 1: First, the first and second drainage components of the designed dimensions are prefabricated in the factory. When casting the first and second drainage components, water collection pipes are pre-embedded at the positions corresponding to each drainage pipe in the two drainage components, so as to form the required drainage pipes by using the buried water collection pipes.

[0065] Step 2: Compact the roadbed and mark the installation positions of the longitudinal and transverse drainage components;

[0066] Step 3: Bury drainage components at the designated locations to form the first, second, and third drainage structures;

[0067] Step 4: Construct the roadbed structure. The roadbed structure surface is divided into sections and the asphalt layer is poured and cured. A permeable layer (i.e., permeable asphalt concrete) that connects with the road asphalt layer is paved on the surface of the first, second and third drainage structures.

[0068] Step 5: Lay a layer of stone bricks or pour an asphalt layer on the surface of the sidewalk subgrade structure and cure it, and lay a permeable layer in the drainage channel formed between the sidewalk and the first drainage component.

[0069] 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 concealed road drainage system, characterized in that, The system includes a first drainage structure buried on both sides of the road surface and extending along the length of the road, and several second drainage structures buried at intervals in the road surface and extending along the width of the road. The two ends of the second drainage structures are respectively connected to the first drainage structures on both sides. The first drainage structure is continuously laid using a first drainage component, which includes a first main body. The interior of the first main body has a first drainage cavity along its length, and the upper end of the first main body has a first water-collecting groove recessed along its length. Several first drainage pipes connecting the first water-collecting groove and the first drainage cavity are provided between the two. The second drainage structure is continuously laid using a second drainage component, which includes a second main body. The interior of the second main body has at least one drainage cavity along its length, and the upper end of the second main body has at least one water-collecting groove corresponding to each drainage cavity. Several drainage pipes connecting the water-collecting groove and the drainage cavity are provided between the two. Both the first and second drainage structures have a permeable layer laid at their upper ends.

2. The concealed road drainage system as described in claim 1, characterized in that, The upper outer side of the first main body is provided with a protrusion as a curb stone, and the first drainage components in the first drainage structure on both sides are symmetrically arranged; the upper part of the first main body away from the protrusion is provided with a first water collection groove protrusion along its length, the first water collection groove is formed between the first water collection groove protrusion and the protrusion, and the top surface of the protrusion is higher than the top surface of the first water collection groove protrusion.

3. The concealed road drainage system as described in claim 2, characterized in that, A plurality of second drainage pipes are provided between the inner side of the first water collection trough protrusion and the first drainage cavity, and are arranged at intervals along the length of the first drainage cavity; a plurality of third drainage pipes are provided between the inner side of the protrusion and the first drainage cavity, and the inlet of the third drainage pipe located on the inner side of the protrusion is higher than the top surface of the first water collection trough protrusion; a plurality of fourth drainage pipes are provided between the outer side of the protrusion and the first drainage cavity, and the end of the fourth drainage pipe away from the first drainage cavity is the inlet.

4. The concealed road drainage system as described in claim 3, characterized in that, Both sides of the first drainage structure are provided with a sidewalk. A drainage groove is formed between the sidewalk and the first drainage component to expose the inlet of the fourth drainage pipe. A permeable layer is provided in the drainage groove.

5. The concealed road drainage system as described in any one of claims 1-4, characterized in that, The interior of the second main body is provided with two spaced-apart second drainage chambers and third drainage chambers. The upper end of the second main body is recessed with two water collection grooves and third water collection grooves respectively located above the second drainage chambers and third drainage chambers. A number of fifth drainage pipes connecting the second drainage chambers and the second water collection grooves are spaced apart along the length of the second drainage chambers. A number of sixth drainage pipes connecting the third drainage chambers and the third water collection grooves are spaced apart along the length of the third drainage chambers.

6. The concealed road drainage system as described in claim 5, characterized in that, The second main body has protruding second water collection groove tenons on both sides and in the middle of its upper end along its length, and a second water collection groove and a third water collection groove are formed between two adjacent second water collection groove tenons respectively; a plurality of seventh drainage pipes are provided on the side wall away from the third water collection groove of the second water collection groove, which is connected to the second drainage cavity; a plurality of eighth drainage pipes are provided on the side wall away from the second water collection groove of the third water collection groove, which is connected to the third drainage cavity along its length.

7. The concealed road drainage system as described in claim 6, characterized in that, The second main body has a number of ninth drainage pipes arranged at intervals along its length and connecting two drainage chambers and two water collection grooves. The ninth drainage pipes are I-shaped. The upper end of the ninth drainage pipes has two inlets that are respectively connected to the two sides of the protrusion of the second water collection groove in the middle. The lower end of the ninth drainage pipes has two outlets that are respectively connected to the side walls of the second drainage chamber and the third drainage chamber.

8. The concealed road drainage system as described in claim 7, characterized in that, Each drainage pipe has a permeable pipe cover at the inlet end away from the drainage chamber, allowing water to pass through.

9. The concealed 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 connected to the second drainage structures. The third drainage structures are all continuously laid using the second drainage components, and the upper end of each third drainage structure is covered with a permeable layer.

10. The concealed road drainage system as described in claim 9, characterized in that, The permeable layer is asphalt concrete.

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