Device capable of improving surface blockage of double-layer drainage asphalt pavement
By embedding water collection pipes and drainage pipes in the double-layer drainage asphalt pavement, combined with the arc-shaped intermediate surface layer design, the problem of surface blockage caused by rainwater accumulation is solved, achieving rapid drainage and structural reinforcement.
Patent Information
- Application Number
- CN202520689109.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-04-11
AI Technical Summary
Existing double-layer drainage asphalt pavements are prone to drainage problems when there is excessive rainfall, which leads to the accumulation of rainwater and dust in the asphalt surface layer, causing surface blockage.
Longitudinal water collection pipes and transverse drainage pipes are embedded between the asphalt intermediate layer and the roadbed. The water collection holes are connected to the drainage pipes, and the water outlet pipes extend into the slope protection. The arc-shaped intermediate layer design is combined to accelerate drainage, and reinforcing rods are used to improve structural strength.
It effectively improves the drainage capacity of double-layer drainage asphalt pavement, reduces the possibility of water accumulation and blockage, and extends the service life of drainage pipes and water collection pipes.
Smart Images

Figure CN224001740U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of double-layer drainage asphalt pavement technology, and in particular, it is a device that can improve the surface blockage of double-layer drainage asphalt pavement. Background Technology
[0002] Double-layer drainage asphalt pavement is a new type of road structure characterized by two layers of permeable asphalt surface. The top layer has low porosity, while the middle layer has high porosity. The top layer filters dust, and the middle layer eliminates noise. Double-layer drainage asphalt pavement offers high driving comfort, low noise, and rapid drainage of accumulated water, preventing water drift, water spray, and other conditions that could affect driving safety.
[0003] The existing double-layer drainage asphalt pavement has smaller voids in the top layer than in the middle layer. Therefore, if there is excessive rainwater, the bottom layer of asphalt will not drain properly, causing rainwater and dust to accumulate in the top layer. This directly leads to the dust mixed in with the rainwater adhering to the voids in the top layer of asphalt. Over time, this will cause the double-layer drainage asphalt pavement to fail to drain properly and result in water accumulation. Therefore, there is an urgent need for a device that can improve the surface blockage of double-layer drainage asphalt pavement to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a device that can improve the surface blockage of double-layer drainage asphalt pavement, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for improving surface blockage of double-layer drainage asphalt pavement, comprising a bottom subgrade of double-layer drainage asphalt pavement, an asphalt top layer and an asphalt middle layer of double-layer drainage asphalt pavement, wherein two longitudinal water collection pipes are symmetrically embedded on both sides of the top surface of the subgrade.
[0006] Multiple drainage pipes are horizontally fixedly installed on the top surface of the roadbed, and both ends of the drainage pipes are connected to the water collection pipes on both sides respectively.
[0007] Water collection holes are provided on the top surface and side walls of multiple drainage pipes;
[0008] The two water collection pipes are connected to multiple drainage pipes on the side away from the roadbed and have multiple outlet pipes installed accordingly;
[0009] The side wall of the water outlet pipe has multiple drainage holes for drainage.
[0010] Preferably, the diameter of the water collection holes opened on the top surface and side wall of the plurality of drainage pipes is larger than the filter pore diameter of the asphalt intermediate layer.
[0011] Preferably, the multiple outlet pipes connected to the side wall of the water collection pipe extend into the slope protection on both sides of the roadbed.
[0012] Preferably, the end of the water outlet pipe away from the water collection pipe is open.
[0013] Preferably, the upper end of the asphalt intermediate layer is arc-shaped to facilitate rapid drainage and matches the bottom of the asphalt upper layer.
[0014] Preferably, a reinforcing rod is horizontally embedded in the middle of the top surface of the roadbed, and the reinforcing rod passes through multiple drainage pipes respectively.
[0015] Preferably, the height of the reinforcing rod embedded in the top surface of the roadbed is higher than the height of the multiple drainage pipes.
[0016] Compared with the prior art, the technical effects and advantages of this utility model are as follows:
[0017] This device, which can improve the surface blockage of double-layer drainage asphalt pavement, benefits from the setting of two water collection pipes and multiple drainage pipes. The water collection pipes and drainage pipes are embedded between the asphalt intermediate layer and the roadbed. This allows water from the asphalt surface layer to quickly enter the interior of multiple drainage pipes and be concentrated in the two water collection pipes when it enters the asphalt intermediate layer. This can accelerate the water filtration effect of the asphalt intermediate layer and further reduce the blockage of the asphalt surface layer.
[0018] This device, which can improve the surface blockage of double-layer drainage asphalt pavement, benefits from the installation of multiple outlet pipes on the side wall of the water collection pipe. These outlet pipes extend into the slope protection on both sides of the roadbed. Since the slope protection is covered with soil, and soil has a faster water filtration effect, the water in the water collection pipe can be quickly discharged into the slope protection and into the ground through the outlet pipes. This can prevent rainwater from accumulating in the asphalt surface layer, drainage pipes, and water collection pipes.
[0019] This device, which can improve the surface blockage of double-layer drainage asphalt pavement, benefits from the arc-shaped top surface of the asphalt intermediate layer, which can further accelerate the water filtration effect of the asphalt intermediate layer.
[0020] This device, which can improve the surface blockage of double-layer drainage asphalt pavement, benefits from the setting of reinforcing bars in the middle of the top surface of the roadbed. The reinforcing bars pass through multiple drainage pipes, and the height of the reinforcing bars is higher than the height of the drainage pipes. Thus, the compressive strength of the drainage pipes and water collection pipes can be further improved by the reinforcing bars, thereby increasing the service life of the drainage pipes and water collection pipes.
[0021] This device can improve surface blockage of double-layer drainage asphalt pavement. Compared with the prior art, this device can effectively improve drainage of double-layer drainage asphalt pavement, thereby reducing water accumulation and the possibility of blockage of double-layer drainage asphalt pavement. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the laying of the water collection pipe and drainage pipe in this utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] In the diagram: 1. Roadbed; 2. Water collection pipe; 3. Drainage pipe; 4. Water outlet pipe; 5. Asphalt intermediate layer; 6. Asphalt top layer; 7. Water collection hole; 9. Reinforcing bar; 10. Drainage hole. Detailed Implementation
[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0028] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.
[0029] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.
[0030] like Figures 1 to 2 The main structure of the device shown is a bottom subgrade 1 of the double-layer drainage asphalt pavement, an asphalt top layer 6 and an asphalt middle layer 5 of the double-layer drainage asphalt pavement, and two longitudinal water collection pipes 2 are symmetrically embedded on both sides of the top surface of the subgrade 1.
[0031] Multiple drainage pipes 3 are horizontally fixedly installed on the top surface of the roadbed 1, and the two ends of the drainage pipes 3 are connected to the water collection pipes 2 on both sides respectively. The top surface and side wall of the multiple drainage pipes 3 are provided with water collection holes 7. Since multiple drainage pipes 3 with water collection holes 7 are provided at the bottom of the asphalt intermediate layer 5, water in the asphalt intermediate layer 5 can directly enter the interior of the multiple drainage pipes 3 through the water collection holes 7, and then drain the water into the interior of the water collection pipes 2 through the drainage pipes 3. This can effectively prevent rainwater from accumulating in the asphalt intermediate layer 5.
[0032] Two water collection pipes 2 are connected to multiple drainage pipes 3 on the side away from the roadbed 1, and multiple water outlet pipes 4 are installed. Multiple drainage holes 10 for drainage are opened on the side wall of the water outlet pipes 4. The multiple water outlet pipes 4 connected to the side wall of the water collection pipes 2 extend into the slope protection on both sides of the roadbed 1. Thanks to the multiple water outlet pipes 4 on the side wall of the water collection pipes 2, and the fact that multiple water outlet pipes 4 extend into the slope protection on both sides of the roadbed 1, and since the slope protection is covered with soil and the soil has a fast water filtration effect, the water in the water collection pipes 2 can be quickly discharged into the slope protection and discharged into the ground through the water outlet pipes 4. This can prevent rainwater from accumulating in the asphalt intermediate layer 5, drainage pipes 3 and water collection pipes 2.
[0033] The diameter of the water collection holes 7 opened on the top surface and side wall of multiple drainage pipes 3 is larger than the filter hole diameter of the asphalt intermediate layer 5. This can effectively prevent rainwater filtered by the asphalt top layer 6 and the asphalt intermediate layer 5 from clogging the water collection holes 7 opened on the side wall of the drainage pipe 3.
[0034] The end of the water outlet pipe 4 away from the water collection pipe 2 is open. Thanks to the open end of the water outlet pipe 4, the drainage of the water outlet pipe 4 can be accelerated, and impurities in the water outlet pipe 4 can also be cleaned.
[0035] The upper end of the asphalt intermediate layer 5 is designed in an arc shape to facilitate rapid drainage and matches the bottom of the asphalt upper layer 6. Thanks to the arc shape of the top surface of the asphalt intermediate layer 5, the water filtration effect of the asphalt intermediate layer 5 can be further accelerated.
[0036] A reinforcing rod 9 is horizontally embedded in the middle of the top surface of the roadbed 1, and the reinforcing rod 9 passes through multiple drainage pipes 3. The height of the reinforcing rod 9 embedded in the top surface of the roadbed 1 is higher than the height of the multiple drainage pipes 3. Thanks to the setting of the reinforcing rod 9 in the middle of the top surface of the roadbed 1, the reinforcing rod 9 passes through multiple drainage pipes 3, and the height of the reinforcing rod 9 is higher than the height of the drainage pipes 3. Thus, the compressive strength of the drainage pipes 3 and the water collection pipes 2 can be further improved by the reinforcing rod 9, thereby improving the service life of the drainage pipes 3 and the water collection pipes 2.
[0037] Working principle
[0038] This device, which improves surface blockage of double-layer drainage asphalt pavement, allows rainwater to flow down through the gaps in the asphalt surface layer 6 to the asphalt intermediate layer 5. At this time, because the bottom of the asphalt intermediate layer 5 is equipped with multiple drainage pipes 3 with water collection holes 7, water in the asphalt intermediate layer 5 can directly enter the interior of the multiple drainage pipes 3 through the water collection holes 7. Then, the water is discharged into the interior of the water collection pipes 2 through the drainage pipes 3. Subsequently, the rainwater is discharged into the interior of multiple water outlet pipes 4 connected to its side wall through the water collection pipes 2, and then quickly discharged into the slope protection on both sides of the roadbed 1 through the multiple water outlet pipes 4. This allows for the rapid drainage of water from the double-layer drainage asphalt pavement, preventing rainwater accumulation and blockage of the double-layer drainage asphalt pavement.
[0039] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An apparatus for improving the surface clogging of a double-layer drainage asphalt pavement, comprising a bottom roadbed (1) laid by a double-layer drainage asphalt pavement, and an asphalt upper surface layer (6) and an asphalt middle surface layer (5) of the double-layer drainage asphalt pavement, characterized in that: Two longitudinal water collecting pipes (2) are symmetrically embedded on both sides of the top surface of the roadbed (1); A plurality of drainage pipes (3) are transversely fixedly embedded on the top surface of the roadbed (1), and the two ends of the drainage pipes (3) are respectively communicated with the water collecting pipes (2) on both sides; Water collecting holes (7) are formed on the top surface and the side wall of the plurality of drainage pipes (3); A plurality of water outlet pipes (4) are correspondingly communicated and installed on the side away from the roadbed (1) of the two water collecting pipes (2) and the plurality of drainage pipes (3); A plurality of drainage holes (10) for drainage are formed in the side wall of the water outlet pipe (4).
2. The device for improving the surface blocking of double-layer drainage asphalt pavement according to claim 1, characterized in that: The aperture of the water collecting holes (7) formed on the top surface and the side wall of the plurality of drainage pipes (3) is greater than the filtering aperture of the asphalt intermediate surface layer (5).
3. The device for improving the surface blocking of double-layer drainage asphalt pavement according to claim 1, characterized in that: The plurality of water outlet pipes (4) communicated and installed on the side wall of the water collecting pipe (2) all extend into the slope protection on both sides of the roadbed (1).
4. The device for improving the surface blocking of double-layer drainage asphalt pavement of claim 1, wherein: The end of the water outlet pipe (4) away from the water collecting pipe (2) is provided with an opening.
5. The device for improving the surface blocking of double-layer drainage asphalt pavement of claim 1, wherein: The upper end of the asphalt intermediate surface layer (5) is provided with an arc shape for facilitating rapid drainage and is matched with the bottom of the asphalt upper surface layer (6).
6. The device for improving the surface blocking of double-layer drainage asphalt pavement of claim 1, wherein: The reinforcing rods (9) are transversely embedded and installed in the middle of the top surface of the roadbed (1), and the reinforcing rods (9) respectively penetrate the plurality of drainage pipes (3).
7. The device for improving the surface blocking of double-layer drainage asphalt pavement according to claim 6, characterized in that: The height of the reinforcing rods (9) embedded and installed on the top surface of the roadbed (1) is higher than the height of the plurality of drainage pipes (3).