Semi-rigid base asphalt pavement structure

Abstract

The utility model discloses a semi-rigid base asphalt pavement structure, and particularly relates to the technical field of asphalt pavement structures, which comprises a semi-rigid base arranged on a roadbed, the top of the semi-rigid base is provided with a first segmentation layer, the top of the first segmentation layer is provided with a water guide layer, the top of the water guide layer is provided with a second segmentation layer, and the top of the second segmentation layer is provided with a water outlet. A stress layer is arranged on the top of the second segmentation layer, and a third segmentation layer is arranged on the top of the stress layer. According to the utility model, raw materials with different particle levels can be prevented from being mixed through the plurality of dividing screen plates for dividing the semi-rigid base layer, the water guide layer, the stress layer and the asphalt layer, and a layered structure between layers is kept, so that the original properties and functions of the semi-rigid base layer, the water guide layer, the stress layer and the asphalt layer can be ensured; and meanwhile, stress can be uniformly distributed, the stress concentration phenomenon is reduced, and the service life of the utility model is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement structures, in particular to a semi-rigid base asphalt pavement structure. Background Art

[0002] Semi-rigid base asphalt pavement is a type of pavement structure commonly used in high-grade highways, and plays an important role in highway construction. Semi-rigid base asphalt pavement includes surface layer, semi-rigid base layer and cushion layer, which has certain rigidity and strong diffusion capacity, and has relatively good tensile resistance, fatigue resistance and water stability. These characteristics make the pavement base layer have good mechanical performance and ensure the stability of the base layer.

[0003] Semi-rigid base asphalt pavement structure is an important pavement structure suitable for high-grade highways. It provides good bearing capacity and stability by using materials with a certain rigidity as the base. With the continuous advancement of technology, this structure will continue to play an important role in future highway construction.

[0004] As shown in the application document with the prior art publication number CN219410387U, it includes a soil base, a cushion layer is laid on the soil base, a base layer is laid on the cushion layer, a surface layer is laid on the base layer, and the base layer adopts a semi-rigid base layer. This technical solution can effectively control the overall strength of the road surface according to its use method by changing the base material and using geogrids, thereby reducing the possibility of cracks, thereby reducing the cost of repairing it in the later stage and reducing the loss of manpower and financial resources.

[0005] However, the structural layers in the above technical solution may be mixed during long-term use, which will affect the use effect and practicality of each layer and also affect the structural stability of the technical solution. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a semi-rigid base asphalt pavement structure. Through multiple dividing mesh plates used to divide the semi-rigid base, water conducting layer, stress layer and asphalt layer, the mixing of raw materials of different particle levels can be prevented, and the layered structure between layers can be maintained, thereby ensuring the original properties and functions of the semi-rigid base, water conducting layer, stress layer and asphalt layer, so as to solve the problems arising from the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a semi-rigid base asphalt pavement structure, including an asphalt structure for a pavement;

[0008] The asphalt structure comprises a semi-rigid base layer arranged on the roadbed, a first splitting layer is arranged on the top of the semi-rigid base layer, a water-conducting layer is arranged on the top of the first splitting layer, a second splitting layer is arranged on the top of the water-conducting layer, a stress layer is arranged on the top of the second splitting layer, a third splitting layer is arranged on the top of the stress layer, and an asphalt layer is arranged on the top of the third splitting layer;

[0009] The first dividing layer, the second dividing layer and the third dividing layer all include dividing mesh plates, and a plurality of spaced mesh holes are opened inside the dividing mesh plates. The plurality of dividing mesh plates used to divide the semi-rigid base layer, the water-conducting layer, the stress layer and the asphalt layer can prevent the mixing of raw materials of different particle levels and maintain the layered structure between the layers.

[0010] In a preferred embodiment, the semi-rigid base layer is formed by pouring concrete on the top of the roadbed. By pouring concrete on the top of the roadbed to form a semi-rigid base layer, the stability and supporting strength of the overall structure can be improved, and the construction cost is low and the practicality is high.

[0011] In a preferred embodiment, the water-conducting layer includes a box body, which is arranged between the first dividing layer and the second dividing layer. Both sides of the box body are fixedly connected with a plurality of water-conducting pipes, and the plurality of water-conducting pipes are evenly spaced apart. The top of the box body is provided with a plurality of through holes, and the plurality of through holes are evenly spaced apart. The infiltrated water can be collected through the through holes on the box body and discharged through the water-conducting pipes, and the water-conducting pipes can be connected to drainage equipment such as municipal pipelines, thereby preventing water from penetrating into the semi-rigid base layer and affecting the overall structural stability, thereby improving the use effect of the utility model and extending the service life of the utility model.

[0012] In a preferred embodiment, a plurality of anti-sliding blocks are installed at the bottom of the box body, and the plurality of anti-sliding blocks are evenly spaced apart. By setting the plurality of anti-sliding blocks, the friction between the box body and the first dividing layer can be enhanced, and the stability of the box body can be enhanced to avoid sliding, thereby ensuring the stability of the box body when draining water.

[0013] In a preferred embodiment, the stress layer is made of crushed stone. By using crushed stone to make the stress layer, since there is a certain porosity between the crushed stones, when a vehicle passes through the road surface, it will exert pressure on the road surface. At this time, movement will occur between the crushed stones, so that the pressure can be dissipated, thereby avoiding excessive pressure affecting the stability of the overall structure.

[0014] In a preferred embodiment, the asphalt layer is made of asphalt. By using asphalt to make the asphalt layer, the smoothness of the road surface can be enhanced, and it has excellent self-healing ability, which can effectively improve the use effect of the utility model and extend the service life of the utility model.

[0015] Technical effects and advantages of the utility model:

[0016] By using multiple dividing mesh plates for dividing the semi-rigid base layer, water-conducting layer, stress layer and asphalt layer, it is possible to prevent raw materials of different particle levels from mixing and maintain the layered structure between layers, thereby ensuring the original properties and functions of the semi-rigid base layer, water-conducting layer, stress layer and asphalt layer, and at the same time helping to evenly distribute stress, reduce stress concentration and extend the service life of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded view of the split screen plate of the utility model;

[0019] Figure 3 This is the front view of the split screen plate of the utility model;

[0020] Figure 4 This is the front view of the box of the utility model;

[0021] Figure 5 It is a bottom view of the box body of the present utility model.

[0022] The accompanying drawings are marked as follows: 1. roadbed; 2. semi-rigid base; 3. first dividing layer; 4. water-conducting layer; 5. second dividing layer; 6. stress layer; 7. third dividing layer; 8. asphalt layer; 9. dividing mesh plate; 10. mesh; 11. box; 12. water-conducting pipe; 13. through hole; 14. anti-sliding block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Refer to the instruction manual Figure 1-5The utility model provides a semi-rigid base asphalt pavement structure, including a semi-rigid base 2 arranged on a roadbed 1, a first split layer 3 is provided on the top of the semi-rigid base 2, a water guide layer 4 is provided on the top of the first split layer 3, a second split layer 5 is provided on the top of the water guide layer 4, a stress layer 6 is provided on the top of the second split layer 5, a third split layer 7 is provided on the top of the stress layer 6, and an asphalt layer 8 is provided on the top of the third split layer 7; the first split layer 3, the second split layer 5 and the third split layer 7 all include a split mesh plate 9, and a plurality of mesh holes 10 distributed at intervals are opened through the inside of the split mesh plate 9.

[0025] Specifically, multiple dividing nets 9 plates used to divide the semi-rigid base layer 2, the water-conducting layer 4, the stress layer 6 and the asphalt layer 8 can be used to prevent the mixing of raw materials of different particle levels and maintain the layered structure between layers, thereby ensuring the structural stability and use effect of the utility model.

[0026] In order to enhance the use effect of the utility model, Figure 1 and 2 As shown, the semi-rigid base layer 2 is formed by pouring concrete on the top of the roadbed 1. By pouring concrete on the top of the roadbed 1 to form the semi-rigid base layer 2, the stability and support strength of the overall structure can be improved, and the cost is low. The stress layer 6 is made of crushed stone. By using crushed stone to form the stress layer 6, because there is a certain void ratio between the crushed stones, when a vehicle passes through the road surface, it will apply pressure to the road surface. At this time, movement will occur between the crushed stones, so that the pressure can be dissipated. The asphalt layer 8 is made of asphalt. By using asphalt to form the asphalt layer 8, the flatness of the road surface can be enhanced, and it has excellent self-healing ability, which can effectively improve the use effect of the utility model and extend the service life of the utility model.

[0027] In order to avoid water penetration and affect the overall structural stability of the utility model, Figure 2 , 4As shown in Figure 5, the water-conducting layer 4 includes a box body 11, which is arranged between the first dividing layer 3 and the second dividing layer 5. Both sides of the box body 11 are fixedly connected with a plurality of water-conducting pipes 12, and the plurality of water-conducting pipes 12 are evenly spaced. The top of the box body 11 is provided with a plurality of through holes 13, and the plurality of through holes 13 are evenly spaced. Through the through holes 13 on the box body 11, the infiltrated water can be collected and discharged through the water-conducting pipes 12, and the water-conducting pipes 12 can be connected to drainage equipment such as municipal pipelines, so as to prevent water from penetrating into the semi-rigid base layer 2 and affecting the overall structural stability, improve the use effect of the utility model and extend the service life of the utility model. A plurality of anti-slip blocks 14 are installed at the bottom of the box body 11, and the plurality of anti-slip blocks 14 are evenly spaced. Through the provision of the plurality of anti-slip blocks 14, the friction between the box body 11 and the first dividing layer 3 can be enhanced, the stability of the box body 11 can be enhanced, and sliding can be avoided.

[0028] By using a plurality of dividing mesh plates 9 for dividing the semi-rigid base layer 2, the water-conducting layer 4, the stress layer 6 and the asphalt layer 8, it is possible to prevent the mixing of raw materials of different particle levels and maintain the layered structure between layers, thereby ensuring the original properties and functions of the semi-rigid base layer 2, the water-conducting layer 4, the stress layer 6 and the asphalt layer 8, enhancing the stability of the utility model, and also helping to evenly distribute stress and reduce stress concentration, thereby effectively extending the service life of the utility model.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A semi-rigid base asphalt pavement structure, characterized by: The invention comprises a semi-rigid base layer (2) arranged on a roadbed (1), a first splitting layer (3) being arranged on the top of the semi-rigid base layer (2), a water-conducting layer (4) being arranged on the top of the first splitting layer (3), a second splitting layer (5) being arranged on the top of the water-conducting layer (4), a stress layer (6) being arranged on the top of the second splitting layer (5), a third splitting layer (7) being arranged on the top of the stress layer (6), and an asphalt layer (8) being arranged on the top of the third splitting layer (7); The first split layer (3), the second split layer (5) and the third split layer (7) all comprise a split mesh plate (9), and a plurality of mesh holes (10) are provided at intervals through the inside of the split mesh plate (9).

2. A semi-rigid base asphalt pavement structure according to claim 1, characterized in that: The semi-rigid base layer (2) is formed by pouring concrete on the top of the roadbed (1).

3. A semi-rigid base asphalt pavement structure according to claim 1, characterized in that: The water-conducting layer (4) comprises a box body (11), the box body (11) is arranged between the first dividing layer (3) and the second dividing layer (5), and a plurality of water-conducting pipes (12) are fixedly connected to both sides of the box body (11), and the plurality of water-conducting pipes (12) are evenly spaced and distributed. The top of the box body (11) is provided with a plurality of through holes (13), and the plurality of through holes (13) are evenly spaced and distributed.

4. A semi-rigid base asphalt pavement structure according to claim 3, characterized in that: A plurality of anti-sliding blocks (14) are installed at the bottom of the box body (11), and the plurality of anti-sliding blocks (14) are evenly spaced and distributed.

5. A semi-rigid base asphalt pavement structure according to claim 1, characterized in that: The stress layer (6) is made of crushed stone.

6. A semi-rigid base asphalt pavement structure according to claim 1, characterized in that: The asphalt layer (8) is made of asphalt.

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