Noise reduction type semi-flexible anti-rutting asphalt pavement structure

Abstract

The utility model discloses a noise reduction type semi-flexible anti-rutting asphalt pavement structure, and belongs to the technical field of pavement structures. A noise reduction type semi-flexible anti-rut asphalt pavement structure comprises a compacted soil layer, a gravel layer is laid and compacted on the top face of the compacted soil layer, a concrete layer is poured on the top face of the gravel layer, a partition frame is placed on the top face of the concrete layer, anti-rut base layers are laid at the two ends of the partition frame and the top face of the concrete layer, and porous asphalt layers are laid on the top faces of the anti-rut base layers. According to the method, the compacted soil layer is subjected to pressure casting through a road roller, then the gravel layer can be laid on the compacted soil layer, then the concrete layer is poured on the gravel layer, the strength of the concrete layer is improved through the steel bars which are arranged in a crossed mode, and when the asphalt layer on the upper portion is laid, the anti-rut base layer is laid on the partition frame, and the last porous asphalt layer is laid; therefore, the anti-rutting and noise-reducing asphalt pavement can be paved, and the problems of cracking, sedimentation and the like of the pavement after long-term use can be avoided.

Description

Technical Field

[0001] This application relates to the field of pavement structure technology, and in particular to a noise-reducing semi-flexible rutting-resistant asphalt pavement structure. Background Technology

[0002] Asphalt pavement refers to various types of road surfaces constructed by incorporating road-grade asphalt into mineral materials. Asphalt binders enhance the ability of paving aggregates to resist damage from traffic and natural factors, resulting in a smooth, dust-free, impermeable, and durable surface. Therefore, asphalt pavement is one of the most widely used high-grade road surfaces in road construction.

[0003] The prior art patent document with publication number CN219079985U provides a noise-reducing semi-flexible anti-rutting asphalt pavement structure. This device improves the stability between the layers of the structure through a metal shell and ribs, avoids cracking and separation between the layers, and improves the load-bearing capacity of the structure. It can prevent the structure from deforming under long-term high pressure, thus ensuring the service life of the structure. The anti-rutting layer plays a role in preventing rutting, and the laying of the modified asphalt layer enables the large-gap pavement to effectively absorb road noise while avoiding material spillage.

[0004] Although the existing technical solutions mentioned above can effectively absorb road noise through the combination of various structures, they still have the following defects: the existing technology directly pours concrete, and there is no reinforcing structure inside the concrete. The bottom layer of the road designed in this way has low strength and cannot guarantee that cracking and settlement will not occur during long-term use.

[0005] In view of this, we propose a noise-reducing semi-flexible rutting-resistant asphalt pavement structure. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] The purpose of this application is to provide a noise-reducing semi-flexible anti-rutting asphalt pavement structure to solve the problems mentioned in the background art that cannot guarantee that the road will not crack or settle during long-term use. This achieves the strengthening of the substructure and ensures that the road will not crack or settle during long-term use.

[0008] 2. Technical Solution

[0009] A noise-reducing semi-flexible rutting-resistant asphalt pavement structure includes a compacted soil layer, a compacted crushed stone layer laid on the top surface of the compacted soil layer, a concrete layer poured on the top surface of the crushed stone layer, a partition frame placed on the top surface of the concrete layer, a rutting-resistant base course laid at both ends of the partition frame and on the top surface of the concrete layer, and a porous asphalt layer laid on the top surface of the rutting-resistant base course.

[0010] By adopting the above technical solution, in the initial stage of road paving, a road roller is first used to compact the soil layer to ensure its stability, which is beneficial to prevent cracks in the subsequent top structure. Then, a crushed stone layer can be laid on top of the compacted soil layer to further enhance its structural strength. Next, a 15-20cm thick layer of AC-25 cement concrete is poured on the crushed stone layer, and the strength of the concrete layer is increased by cross-placed steel bars. Then, when laying the upper asphalt layer, an anti-rutting base course is laid in the frame, with a thickness of 4-5cm. Finally, a porous asphalt layer with a thickness of 1-2cm is laid on the anti-rutting base course to reduce road noise. In this way, an anti-rutting and noise-reducing asphalt pavement can be laid, which can ensure that the road will not crack or settle in the long term.

[0011] Preferably, the concrete layer has cross-placed reinforcing bars cast in the middle.

[0012] By adopting the above technical solution, the cross-placed steel reinforcement design can greatly enhance the structural strength of the concrete layer, ensuring that the road will not crack or other problems during long-term use.

[0013] Preferably, multiple noise-reducing cylinders are fixedly connected to both ends of the partition frame.

[0014] Preferably, the noise reduction cylinder has multiple support rods fixed inside, with six support rods forming a group.

[0015] By adopting the above technical solution, the noise reduction cylinder can be designed with multiple holes in the road surface, which can absorb noise and prevent excessive noise from the asphalt road surface. In addition, the design of multiple internal support rods can strengthen the structure of the noise reduction cylinder and prevent it from breaking under the pressure of asphalt and other materials, thus ensuring that the noise reduction cylinder maintains its original structure during construction.

[0016] Preferably, the top surface of the partition frame is provided with a noise reduction groove, and the noise reduction groove has a rectangular structure.

[0017] By adopting the above technical solution, the noise reduction groove opened on the top surface of the frame can reduce the contact area between the road surface and the tire through its structure, thereby further reducing the generation of noise.

[0018] 3. Beneficial effects

[0019] Compared to existing technologies, the advantages of this application are:

[0020] 1. This application uses a road roller to compact the soil layer, ensuring its stability and preventing cracks in the subsequent top structure. Then, a crushed stone layer can be laid on top of the compacted soil layer to further enhance its structural strength. A concrete layer is then poured on the crushed stone layer, with cross-placed steel bars to increase its strength. When laying the upper asphalt layer, an anti-rutting base layer is laid in the frame. Finally, a porous asphalt layer is laid on the anti-rutting base layer to reduce road noise. This completes the construction of an anti-rutting and noise-reducing asphalt pavement, ensuring that the road will not crack or settle over long-term use.

[0021] 2. This application utilizes a noise reduction cylinder design that allows for the creation of multiple holes in the road surface, thereby absorbing noise and preventing excessive noise from the asphalt pavement. Furthermore, the internal design of multiple support rods reinforces the structure of the noise reduction cylinder, preventing breakage under pressure from asphalt and other materials, thus ensuring that the noise reduction cylinder maintains its original structure during construction. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the noise-reducing semi-flexible anti-rutting asphalt pavement structure according to an embodiment of this application;

[0023] Figure 2 This is a cross-sectional schematic diagram of the noise reduction cylindrical structure of the noise reduction semi-flexible anti-rutting asphalt pavement according to an embodiment of this application;

[0024] The labels in the diagram are as follows: 1. Compacted soil layer; 2. Crushed stone layer; 3. Concrete layer; 4. Partition frame; 5. Anti-rutting base course; 6. Reinforcing steel; 7. Noise reduction cylinder; 8. Support rod; 9. Noise reduction groove; 10. Porous asphalt layer. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1 and Figure 2 This application discloses a noise-reducing semi-flexible rutting-resistant asphalt pavement structure. A compacted soil layer 1 is formed, a compacted crushed stone layer 2 is laid on top of the compacted soil layer 1, a concrete layer 3 is poured on top of the crushed stone layer 2, a partition frame 4 is placed on top of the concrete layer 3, and rutting-resistant base courses 5 are laid at both ends of the partition frame 4 and on top of the concrete layer 3. A porous asphalt layer 10 is laid on top of the rutting-resistant base course 5.

[0027] In the initial stage of road paving, a road roller is first used to compact the soil layer 1 to ensure its stability, which helps prevent cracks in the subsequent top structure. Then, a crushed stone layer 2 is laid on top of the compacted soil layer 1 to further enhance its structural strength. Next, a 15-20cm thick concrete layer 3 is poured using AC-25 cement concrete on the crushed stone layer 2, and the strength of the concrete layer 3 is increased by cross-placed steel bars 6. When laying the upper asphalt layer, an anti-rutting base course 5 is laid on the frame 4, with a thickness of 4-5cm. Finally, a porous asphalt layer 10 is laid on the anti-rutting base course 5 to reduce road noise, with a thickness of 1-2cm. In this way, an anti-rutting and noise-reducing asphalt pavement can be laid, ensuring that the road will not crack or settle over a long period of time.

[0028] The middle of the concrete layer 3 is filled with cross-placed steel bars 6.

[0029] The design of the cross-placed steel bars 6 can greatly enhance the structural strength of the concrete layer 3, ensuring that the road will not crack or other problems during long-term use.

[0030] Multiple noise-reducing cylinders 7 are fixed at both ends of the partition frame 4.

[0031] The noise reduction cylinder 7 has multiple support rods 8 inside, with six support rods forming a group.

[0032] The design of the noise reduction cylinder 7 allows for the opening of multiple holes in the road surface, which can absorb noise and prevent excessive noise from the asphalt road surface. In addition, the design of multiple internal support rods 8 can strengthen the structure of the noise reduction cylinder 7 and prevent it from breaking under the pressure of asphalt and other materials, thus ensuring that the noise reduction cylinder 7 maintains its original structure during construction.

[0033] The top surface of the partition 4 is provided with a noise reduction groove 9, which has a rectangular structure.

[0034] The noise reduction groove 9 on the top surface of the frame 4 can reduce the contact area between the road surface and the tire through its structure, thereby further reducing noise generation.

[0035] The implementation principle of a noise-reducing semi-flexible rutting-resistant asphalt pavement structure in this application embodiment is as follows: In the initial stage of road paving, a road roller is first used to compact the soil layer 1 to ensure its stability, which is beneficial to prevent cracks in the subsequent top structure. Then, a crushed stone layer 2 is laid on top of the compacted soil layer 1 to further enhance its structural strength. Then, a concrete layer 3 with a thickness of 15-20cm is poured using AC-25 cement concrete on the crushed stone layer 2, and the strength of the concrete layer 3 is increased by cross-placed steel bars 6. Then, when laying the upper asphalt layer, a rutting-resistant base layer 5 is laid on the frame 4. The thickness of the rutting-resistant base layer 5 is 4-5cm. Finally, a porous asphalt layer 10 is laid on the rutting-resistant base layer 5 to reduce road noise. The thickness of the porous asphalt layer 10 is 1-2cm. In this way, a rutting-resistant and noise-reducing asphalt pavement can be laid, and it can be ensured that the road will not crack or settle for a long time.

Claims

1. A noise-reducing semi-flexible rutting-resistant asphalt pavement structure, characterized in that: include A compacted soil layer (1) is laid on top of the compacted soil layer (1) and a compacted crushed stone layer (2) is laid on top of the crushed stone layer (2). A concrete layer (3) is poured on top of the crushed stone layer (2). A partition frame (4) is placed on top of the concrete layer (3). A rutting-resistant base course (5) is laid at both ends of the partition frame (4) and on top of the concrete layer (3). A porous asphalt layer (10) is laid on top of the rutting-resistant base course (5).

2. The noise-reducing semi-flexible rutting-resistant asphalt pavement structure according to claim 1, characterized in that: The concrete layer (3) is reinforced with cross-shaped steel bars (6) in the middle.

3. The noise-reducing semi-flexible rutting-resistant asphalt pavement structure according to claim 1, characterized in that: Multiple noise-reducing cylinders (7) are fixed at both ends of the partition frame (4).

4. The noise-reducing semi-flexible rutting-resistant asphalt pavement structure according to claim 3, characterized in that: The noise reduction cylinder (7) is internally connected and fixed with multiple support rods (8), and the support rods (8) are in groups of six.

5. The noise-reducing semi-flexible rutting-resistant asphalt pavement structure according to claim 1, characterized in that: The top surface of the partition (4) is provided with a noise reduction groove (9), which is rectangular in shape.

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