Anti-rutting asphalt pavement structure for long uphill road section

Abstract

The utility model discloses an anti-rut asphalt pavement structure for a long uphill road section, which relates to the technical field of pavement structures and comprises a pavement foundation, a waterproof bonding layer is laid on the top of the pavement foundation, a drainage base is laid on the top of the waterproof bonding layer, a plurality of drainage pipes are fixedly connected in the drainage base, and the drainage pipes are connected with the waterproof bonding layer. Water seepage holes are formed in the surface of the drainage pipe, the two ends of the drainage pipe are fixedly connected with water outlet pipes, the water outlet pipes are located on the outer side of the drainage base, and a mounting ring is mounted at one end of each water outlet pipe. According to the asphalt pavement structure, the plurality of drainage pipes are arranged, so that the strength of the asphalt pavement structure can be enhanced, an anti-rutting effect is achieved, water permeating into the pavement structure can be drained, erosion of rainwater to the interior of the pavement structure is reduced, and impurities can be prevented from entering the drainage pipes to cause blockage by arranging the filter screens; and the filter screen can be mounted and dismounted through the clamping assembly in a clamping manner, so that the filter screen can be dismounted and cleaned by personnel conveniently.

Description

Technical Field

[0001] This utility model relates to the field of road structure technology, specifically to an anti-rutting asphalt pavement structure for long uphill road sections. Background Technology

[0002] For a long time, asphalt pavement has been widely used in highway construction due to its advantages of driving comfort, anti-skid, noise reduction and easy maintenance. With the rapid development of transportation, the mileage of asphalt pavement has increased significantly year by year.

[0003] According to application number 201621011557.6, a rutting-resistant asphalt pavement structure for long uphill sections of mountain highways is disclosed. It includes a top layer of dense-structure asphalt concrete with a skeleton, laid sequentially from top to bottom on the long uphill section; and a middle and lower layer of continuous dense-graded asphalt-stabilized crushed stone. A tack coat is sprayed between the top and middle / lower layers. The top layer uses SMA-13 ​​gradation, and the middle and lower layers use Sup-20 gradation. The middle and lower layers are laid and compacted in a single operation. This invention is suitable for asphalt pavements with a good base course, rutting deformation located in the middle and lower layers, and severe rutting damage, especially suitable for special terrains such as long uphill sections of mountain highways. This pavement structure improves the overall load-bearing capacity and durability of the pavement, strengthens the interlayer bonding performance, reduces the maintenance frequency of severely rutted sections, and increases the service life of the pavement.

[0004] The following problems still exist in actual use:

[0005] The above technical solution improves the overall load-bearing capacity and durability of the road surface, extending the service life of the asphalt pavement. However, the bonding strength decreases under long-term immersion in rainwater, which greatly increases the number of repairs required for the asphalt pavement structure, reduces the service life of the recycled asphalt pavement structure, and consequently affects the normal driving of vehicles on the recycled asphalt pavement. Utility Model Content

[0006] Technical problems to be solved

[0007] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a rutting-resistant asphalt pavement structure for long uphill road sections. By setting multiple drainage pipes, it can not only strengthen the asphalt pavement structure, but also facilitate the drainage of water that has seeped into the pavement structure. Furthermore, by installing a filter screen at the outlet of the drainage pipe, it can prevent impurities from entering. At the same time, the filter screen can be installed and removed by means of a snap-fit, which is convenient for personnel to disassemble and clean, thus making it convenient for users to operate.

[0008] Technical solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a rutting-resistant asphalt pavement structure for long uphill road sections, comprising a pavement foundation, a waterproof bonding layer laid on top of the pavement foundation, a drainage base laid on top of the waterproof bonding layer, several drainage pipes fixedly connected inside the drainage base, water seepage holes opened on the surface of the drainage pipes, and water outlet pipes fixedly connected to both ends of the drainage pipes, the water outlet pipes being located outside the drainage base, an installation ring installed at one end of the water outlet pipe, a filter screen fixedly connected inside the installation ring, and snap-fit ​​components provided on both the upper and lower sides of the water outlet pipe.

[0010] The present invention is further configured such that the snap-fit ​​assembly includes a snap-fit ​​groove and a fixing block, the snap-fit ​​groove is opened on the outside of the water outlet pipe, and the bottom end of the fixing block is fixedly connected to the outer wall of the water outlet pipe.

[0011] The present invention is further configured such that the snap-fit ​​assembly includes a spring and a snap-fit ​​block, wherein the top end of the spring is fixedly connected to the inner wall of the fixing block, and the top end of the snap-fit ​​block is fixedly connected to the bottom end of the spring.

[0012] The present invention is further configured such that the snap-fit ​​assembly includes a sliding groove and a slider. There are two sliding grooves, which are formed on the inner walls of both sides of the fixing block. There are two sliders, which are fixedly connected to both sides of the snap-fit ​​block and are located inside the sliding groove.

[0013] The present invention is further configured such that the bottom of the card block is arc-shaped, and the bottom of the card block is located inside the card slot.

[0014] The present invention is further configured such that connecting rods are fixedly connected to both ends of one side of the mounting ring, and a protrusion is fixedly connected to one end of the connecting rod, and both the connecting rod and the protrusion are located inside the snap-fit ​​groove.

[0015] The present invention is further configured such that an asphalt pavement layer is laid on the top of the drainage base, drainage channels are fixedly connected to both sides of the pavement base, and the water outlet pipe is located on the top of the drainage channel.

[0016] Beneficial effects:

[0017] I. This utility model, by setting multiple drainage pipes, can not only strengthen the asphalt pavement structure and play a role in resisting rutting, but also drain water that seeps into the pavement structure, reducing the erosion of the pavement structure by rainwater. In rainy weather, rainwater enters the drainage base through the asphalt pavement layer, seeps into the drainage pipe through the seepage holes, and then flows out from the outlet pipe.

[0018] Second, by setting up a filter screen, this utility model can prevent impurities from entering the drain pipe and causing blockage. The filter screen can be installed and removed by snap-fit ​​assembly. When the filter screen is blocked, the installation ring can be pulled outward for cleaning, which facilitates personnel to disassemble and clean the filter screen and improves its practicality.

[0019] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall asphalt pavement of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the drainage base of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the water outlet pipe of this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the filter screen of this utility model;

[0024] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Roadbed; 2. Waterproof bonding layer; 3. Drainage base; 4. Asphalt pavement layer; 5. Drainage pipe; 6. Water seepage hole; 7. Water outlet pipe; 8. Mounting ring; 9. Filter screen; 10. Connecting rod; 11. Protrusion; 12. Snap-fit ​​assembly; 1201. Snap-fit ​​groove; 1202. Fixing block; 1203. Spring; 1204. Locking block; 1205. Sliding groove; 1206. Sliding block; 13. Drainage channel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 5As shown, this utility model provides a technical solution: a rutting-resistant asphalt pavement structure for long uphill road sections, including a pavement base 1, a waterproof bonding layer 2 laid on top of the pavement base 1, a drainage base 3 laid on top of the waterproof bonding layer 2, several drainage pipes 5 fixedly connected inside the drainage base 3, water seepage holes 6 opened on the surface of the drainage pipes 5, and water outlet pipes 7 fixedly connected to both ends of the drainage pipes 5. The water outlet pipes 7 are located outside the drainage base 3, an installation ring 8 is installed at one end of the water outlet pipe 7, a filter screen 9 is fixedly connected inside the installation ring 8, and snap-fit ​​components 12 are provided on both the upper and lower sides of the water outlet pipe 7.

[0028] By setting up multiple drainage pipes 5, not only can the strength of the asphalt pavement structure be enhanced and rutting resistance be achieved, but water that has seeped into the pavement structure can also be drained, reducing the erosion of the pavement structure by rainwater. In rainy weather, rainwater enters the drainage base 3 through the asphalt pavement layer 4, and then seeps into the drainage pipe 5 through the seepage holes 6, and then flows out from the outlet pipe 7. The waterproof bonding layer 2 can prevent rainwater from seeping into the pavement foundation 1 and causing collapse.

[0029] like Figures 1 to 5 As shown, the snap-fit ​​assembly 12 includes a snap-fit ​​groove 1201, a fixing block 1202, a spring 1203, a snap-fit ​​block 1204, a sliding groove 1205, and a slider 1206. The snap-fit ​​groove 1201 is opened on the outside of the water outlet pipe 7. The bottom end of the fixing block 1202 is fixedly connected to the outer wall of the water outlet pipe 7. The top end of the spring 1203 is fixedly connected to the inner wall of the fixing block 1202. The top end of the snap-fit ​​block 1204 is fixedly connected to the bottom end of the spring 1203. There are two sliding grooves 1205, which are opened on the inner walls of both sides of the fixing block 1202. There are two sliders 1206, which are fixedly connected to both sides of the snap-fit ​​block 1204 and are located inside the sliding groove 1205. The bottom of the snap-fit ​​block 1204 is arc-shaped and is located inside the snap-fit ​​groove 1201.

[0030] The filter screen 9 can be installed and removed by means of snap-fit ​​assembly 12. When installing the filter screen 9, the connecting rod 10 on one side of the mounting ring 8 is inserted into the snap-fit ​​groove 1201, so that the protrusion 11 squeezes the locking block 1204. After the locking block 1204 is subjected to force, it moves upward and compresses the spring 1203. Then, after the connecting rod 10 and the protrusion 11 are fully inserted into the inside of the snap-fit ​​groove 1201, the locking block 1204 is reset by the force of the spring 1203 to complete the snap-fit, and the mounting ring 8 is fixed, thereby fixing the filter screen 9 in place.

[0031] like Figures 1 to 5As shown, an asphalt pavement layer 4 is laid on the top of the drainage base 3, and drainage channels 13 are fixedly connected to both sides of the pavement base 1. The water outlet pipe 7 is located on the top of the drainage channel 13. Connecting rods 10 are fixedly connected to both ends of one side of the mounting ring 8. A protrusion 11 is fixedly connected to one end of the connecting rod 10. Both the connecting rod 10 and the protrusion 11 are located inside the snap-fit ​​groove 1201.

[0032] The infiltrated water is directed into the drainage channel 13, through which the water can be diverted to other places, preventing rainwater from flooding the asphalt pavement surface and reducing the erosion of the pavement structure by rainwater.

[0033] Working principle: When constructing this asphalt pavement structure, a waterproof bonding layer 2 is first laid manually on the pavement base 1. Then, a drainage base 3 is laid on the waterproof bonding layer 2. When laying the drainage base 3, drainage pipes 5 are buried inside the drainage base 3. Drainage channels 13 are opened on both sides of the pavement base 1. In rainy weather, rainwater enters the drainage base 3 through the asphalt pavement layer 4. The rainwater seeps into the drainage pipes 5 through the seepage holes 6, and then flows out from the outlet pipes 7 and into the interior of the drainage channels 13, reducing the erosion of the pavement structure by rainwater. The drainage pipes 5 can also increase the overall strength of the pavement and play a role in resisting rutting.

[0034] While installing the drain pipe 5, the filter screen 9 can be installed at one end of the outlet pipe 7. By inserting the connecting rod 10 on one side of the mounting ring 8 into the snap-fit ​​groove 1201, the protrusion 11 presses against the snap-fit ​​block 1204. The snap-fit ​​block 1204 moves upward under force, and the spring 1203 is compressed. Then, after the connecting rod 10 and the protrusion 11 are fully inserted into the snap-fit ​​groove 1201, the snap-fit ​​block 1204 resets due to the force of the spring 1203, thus fixing the mounting ring 8 and the filter screen 9. The filter screen 9 can prevent impurities from entering the drain pipe 5 and causing blockage. When the filter screen 9 is blocked, the mounting ring 8 can be pulled outward to clean it.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rutting-resistant asphalt pavement structure for long uphill road sections, comprising a pavement subgrade (1), characterized in that: A waterproof adhesive layer (2) is laid on top of the roadbed (1), and a drainage base (3) is laid on top of the waterproof adhesive layer (2). Several drainage pipes (5) are fixedly connected inside the drainage base (3). Water seepage holes (6) are opened on the surface of the drainage pipes (5). Water outlet pipes (7) are fixedly connected to both ends of the drainage pipes (5). The water outlet pipes (7) are located outside the drainage base (3). An installation ring (8) is installed at one end of the water outlet pipe (7). A filter screen (9) is fixedly connected inside the installation ring (8). Clip-on components (12) are provided on both the upper and lower sides of the water outlet pipe (7).

2. The anti-rutting asphalt pavement structure for long uphill sections according to claim 1, characterized in that: The snap-fit ​​assembly (12) includes a snap-fit ​​groove (1201) and a fixing block (1202). The snap-fit ​​groove (1201) is opened on the outside of the water outlet pipe (7), and the bottom end of the fixing block (1202) is fixedly connected to the outer wall of the water outlet pipe (7).

3. The anti-rutting asphalt pavement structure for long uphill sections according to claim 2, characterized in that: The snap-fit ​​assembly (12) further includes a spring (1203) and a snap-fit ​​block (1204). The top end of the spring (1203) is fixedly connected to the inner wall of the fixing block (1202), and the top end of the snap-fit ​​block (1204) is fixedly connected to the bottom end of the spring (1203).

4. The anti-rutting asphalt pavement structure for long uphill sections according to claim 3, characterized in that: The snap-fit ​​assembly (12) further includes a slide groove (1205) and a slider (1206). There are two slide grooves (1205), which are formed on the inner walls of both sides of the fixing block (1202). There are two sliders (1206), which are fixedly connected to both sides of the snap-fit ​​block (1204) and are located inside the slide groove (1205).

5. The anti-rutting asphalt pavement structure for long uphill sections according to claim 3, characterized in that: The bottom of the card block (1204) is arc-shaped, and the bottom of the card block (1204) is located inside the card slot (1201).

6. The anti-rutting asphalt pavement structure for long uphill sections according to claim 1, characterized in that: The mounting ring (8) has a connecting rod (10) fixedly connected to both ends on one side. A protrusion (11) is fixedly connected to one end of the connecting rod (10). The connecting rod (10) and the protrusion (11) are both located inside the snap-fit ​​groove (1201).

7. The anti-rutting asphalt pavement structure for long uphill sections according to claim 1, characterized in that: The top of the drainage base (3) is covered with an asphalt pavement layer (4), and drainage channels (13) are fixedly connected to both sides of the pavement base (1). The water outlet pipe (7) is located on the top of the drainage channel (13).

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