CN215482052U - Crack control pitch road structure - Google Patents
Crack control pitch road structure Download PDFInfo
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- CN215482052U CN215482052U CN202121140014.5U CN202121140014U CN215482052U CN 215482052 U CN215482052 U CN 215482052U CN 202121140014 U CN202121140014 U CN 202121140014U CN 215482052 U CN215482052 U CN 215482052U
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Abstract
The application relates to the technical field of asphalt roads, in particular to an anti-cracking asphalt road structure which comprises a road base layer, a reinforcing layer and a road surface layer, wherein the road base layer, the reinforcing layer and the road surface layer are distributed from bottom to top from a foundation; the road bed layer plays the bearing effect, and the enhancement layer can spread the stress that is passed down by the road bed layer to reduce the deformation of road bed layer, the enhancement layer sets up the composite construction of arranging from top to bottom into rigid layer, semi-rigid layer and flexible layer, can prevent the reflection crack, the effect of enhancement layer diffusion stress has been improved, all be equipped with the reinforcing mat in rigid layer and the flexible layer in the enhancement layer simultaneously, can improve the stability on rigid layer and the adaptability on flexible layer, thereby strengthen overall structure's stability. This application has the effect of improving the fracture of bituminous paving.
Description
Technical Field
The application relates to the technical field of asphalt roads, in particular to an anti-cracking asphalt road structure.
Background
The road surface is a layered structure that is laid on a road bed with various materials and on which vehicles run. The unpaved subgrade, while also capable of running vehicles, has poor resistance to natural elements and vehicle loads. When driving, the surface of the wheel will be rugged, causing jolt, skid, or even no traffic, and the loss of oil and parts will be serious. After the pavement is paved, the road condition is improved, vehicles can pass through all the weather, and the vehicles can safely, comfortably and economically run on the road at a certain speed.
Traditional asphalt road structure is in the use, because the overall structure intensity of road structure layer is lower, the tensile anti-cracking performance of road structure layer is relatively poor, and the road surface condition of splitting lasts rapid deterioration easily, reduces road structure layer's use reliability, and road structure layer's life is shorter.
SUMMERY OF THE UTILITY MODEL
In order to improve the condition of the fracture of bituminous paving to and provide better vehicle running environment and improve road life, the application provides an anti-cracking bituminous paving structure.
The application provides a crack control pitch road structure adopts following technical scheme:
the utility model provides an anti-cracking asphalt road structure, includes road bed layer, enhancement layer and the pavement layer that distributes from bottom to top from the ground, the enhancement layer includes rigid layer, semi-rigid layer and the flexible layer that distributes from bottom to top, be equipped with first reinforcing mat in the rigid layer, be equipped with the second reinforcing mat in the flexible layer.
Through adopting above-mentioned technical scheme, the roadbed layer plays the bearing effect, the enhancement layer can diffuse the stress that is passed down by the roadbed layer, in order to reduce the deformation of roadbed layer, the enhancement layer sets up the composite construction that arranges from top to bottom into rigid layer, semi-rigid layer and flexible layer, can prevent the reflection crack, the effect of enhancement layer diffusion stress has been improved, all be equipped with the reinforcing mesh in rigid layer and the flexible layer in the enhancement layer simultaneously, can improve the stability on rigid layer and the adaptability on flexible layer, thereby strengthen overall structure's stability.
Optionally, the roadbed layer comprises a stabilized soil layer and gravels mixed in the stabilized soil layer.
By adopting the technical scheme, the roadbed layer plays a role in stable bearing, has low requirements on materials, can be constructed by selecting the stabilized soil layer mixed with the broken stones, and reduces the construction cost while ensuring good effect.
Optionally, the first reinforcing mesh is a metal mesh, and is parallel to the upper and lower surfaces of the rigid layer.
Through adopting above-mentioned technical scheme, the metal mesh sets up inside rigid layer, can strengthen rigid layer's structural strength, improves rigid layer's bearing capacity and stability.
Optionally, the surface of the first reinforcing mesh is provided with a plurality of reinforcing nails, and the reinforcing nails are axially perpendicular to the plane of the first reinforcing mesh.
Through adopting above-mentioned technical scheme, strengthen the nail and can increase the area of contact between reinforcing net surface and the rigidity layer, improve the ability of rigidity layer diffusion stress.
Optionally, the reinforcing pins are disposed on the upper surface and/or the lower surface of the first reinforcing mesh, and the tips of the reinforcing pins are contained in the rigid layer.
Through adopting above-mentioned technical scheme, set up the intraformational reinforcement nail of inserting rigidity on the reinforcing mesh, can further improve the structural strength on rigidity layer.
Optionally, the reinforcing pins are disposed on the lower surface of the first reinforcing mesh, and the tips of the reinforcing pins penetrate the rigid layer and are submerged in the roadbed layer.
Through adopting above-mentioned technical scheme, be provided with on the reinforcing net and run through the stiffening nail that rigid layer lower surface inserted the roadbed layer, strengthened the joint strength between rigid layer and the roadbed layer, improved the stability of enhancement layer.
Optionally, the second reinforcing mesh is a nylon mesh.
Through adopting above-mentioned technical scheme, nylon net toughness is good, and the wearability is strong, has good ductility, sets up and can strengthen the buffer capacity of flexible layer to receiving the effort in the flexible layer, makes flexible layer non-deformable.
Optionally, a waterproof layer is arranged between the reinforcing layer and the pavement layer, the waterproof layer is set to be waterproof coiled material, the lower surface of the waterproof layer is bonded with the reinforcing layer, and the upper surface of the waterproof layer is bonded with the pavement layer.
Through adopting above-mentioned technical scheme, the waterproof layer sets up to waterproofing membrane, and waterproofing membrane can not influenced by temperature, and environmental pollution is little, and waterproof function is showing, and is durable lastingly.
Optionally, the pavement layer is set as an asphalt mixture layer.
By adopting the technical scheme, the asphalt mixture layer is adopted as the pavement layer, the surface is smooth, the seam is not formed, the maintenance and the repair are simple and convenient, the regeneration and the utilization are realized, and the service life of the pavement layer is prolonged.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the roadbed layer plays a bearing role, the reinforcing layer can diffuse stress transmitted by the roadbed layer so as to reduce the deformation of the roadbed layer, the reinforcing layer is of a composite structure with a rigid layer, a semi-rigid layer and a flexible layer which are arranged up and down, so that reflection cracks can be prevented, the effect of the diffusion stress of the reinforcing layer is improved, and meanwhile, reinforcing nets are arranged in the rigid layer and the flexible layer in the reinforcing layer, so that the stability of the rigid layer and the adaptability of the flexible layer can be improved, and the stability of the whole structure is enhanced;
2. the first reinforcing mesh is a metal mesh which is arranged inside the rigid layer, so that the structural strength of the rigid layer can be enhanced, and the bearing capacity and the stability of the rigid layer are improved;
3. the second reinforcing net adopts the nylon wire, and nylon wire toughness is good, and the wearability is strong, has good ductility, sets up can strengthen the buffer capacity of flexible layer to receiving the effort in the flexible layer, makes flexible layer non-deformable.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present application.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present application.
Description of reference numerals: 100. a foundation; 1. a roadbed layer; 2. a reinforcing layer; 21. a rigid layer; 211. a first reinforcing mesh; 212. reinforcing nails; 22. a semi-rigid layer; 23. a flexible layer; 231. a second reinforcing mesh; 3. a pavement layer; 31. and a waterproof layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses crack control pitch road structure. Referring to fig. 1 and 2, the roadbed comprises a roadbed layer 1, a reinforcing layer 2 and a roadbed layer 3, wherein the roadbed layer 1 mainly plays a role in bearing weight and is distributed on the upper surface of a foundation 100 from bottom to top; the reinforcing layer 2 comprises a rigid layer 21, a semi-rigid layer 22 and a flexible layer 23 which are distributed from top to bottom, the reinforcing layer 2 mainly plays a role in diffusing stress transferred from the pavement layer 3, and the composite structure formed by sequentially arranging the rigid layer 21, the semi-rigid layer 22 and the flexible layer 23 is adopted, so that the effect of the diffusion stress of the reinforcing layer 2 is further improved, and the structure is more stable; the rigid layer 21 is provided with the first reinforcing net 211, so that the stability of the rigid layer 21 is improved, and the flexible layer 23 is provided with the second reinforcing net 231, so that the adaptability of the flexible layer 23 is improved.
Example 1
Referring to fig. 1, a roadbed 1 includes a stabilized soil layer and gravels mixed in the stabilized soil layer, the gravels are firstly spread and compacted on a foundation 100, and the stabilized soil layer and the gravels are coagulated into a plate body with time increase when the stabilized soil layer is filled in gaps of the gravels, thereby further improving the strength of the roadbed 1.
Referring to fig. 1, a rigid layer 21 belongs to the lower part of a reinforcing layer 2, the lower surface of the rigid layer is attached to a roadbed layer 1 and is set as a roller compacted concrete layer, a first reinforcing mesh 211 is arranged in the rigid layer 21, the first reinforcing mesh 211 is a metal mesh and is horizontally arranged and parallel to the upper surface and the lower surface of the rigid layer 21, the structural strength of the rigid layer 21 can be enhanced, and the rigid layer 21 is not easy to bend and deform due to extrusion; the upper surface and/or the lower surface of the first reinforcing mesh 211 are/is provided with reinforcing nails 212, in the embodiment, the reinforcing nails 212 are arranged on the lower surface of the first reinforcing mesh 211, one ends of the reinforcing nails 212 are connected with the nodes on the lower surface of the first reinforcing mesh 211, the other ends of the reinforcing nails are provided with pointed ends, and the pointed ends of the reinforcing nails 212 are contained in the rigid layer 21, so that the contact area between the surface of the first reinforcing mesh 211 and the rigid layer 21 in the embodiment is increased, the combination of the surface of the first reinforcing mesh 211 and the rigid layer 21 is tighter, and the stress diffusion capability of the rigid layer 21 is improved; the semi-rigid layer 22 is positioned above the rigid layer 21 and is arranged as a cement stabilizing layer; flexible layer 23 is in semi-rigid layer 22 top, sets up to the lime stone layer that ties, is equipped with second reinforcing mesh 231 in the flexible layer 23, and second reinforcing mesh 231 is the nylon wire net, and toughness is good, and the wearability is strong, and ductility is good, can strengthen flexible layer 23 to the buffer capacity who receives the effort.
Referring to fig. 1, pavement layer 3 sets up to the asphalt mixture bed, is located the top of enhancement layer 2, is equipped with waterproof layer 31 between pavement layer 3 and enhancement layer 2, and waterproof layer 31 sets up to waterproofing membrane, and the upper surface bonds with pavement layer 3, and the lower surface bonds with enhancement layer 2, and waterproofing membrane receives external conditions such as gas humiture to influence for a short time, and environmental pollution is little, and is durable lastingly.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that one end of the reinforcing nail 212 is fixedly connected to the lower surface of the first reinforcing mesh 211, and the other end is provided with a pointed head, and the pointed head penetrates through the lower surface of the rigid layer 21 and is submerged in the roadbed layer 1, so that the connection strength between the rigid layer 21 and the roadbed layer 1 is enhanced, and the stability of the reinforcing layer 2 is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. An anti-cracking asphalt road structure is characterized in that: including road bed layer (1), enhancement layer (2) and pavement layer (3) that distribute from bottom to top from foundation (100), enhancement layer (2) are including rigid layer (21), semi-rigid layer (22) and flexible layer (23) that distribute from bottom to top, be equipped with first reinforcing mesh (211) in rigid layer (21), be equipped with second reinforcing mesh (231) in flexible layer (23).
2. An anti-cracking asphalt road structure according to claim 1, characterized in that: the roadbed layer (1) comprises a stabilized soil layer and gravels mixed in the stabilized soil layer.
3. An anti-cracking asphalt road structure according to claim 1, characterized in that: the first reinforcing mesh (211) is arranged as a metal mesh and is parallel to the upper surface and the lower surface of the rigid layer (21).
4. An anti-cracking asphalt road structure according to claim 3, characterized in that: the surface of the first reinforcing net (211) is provided with a plurality of reinforcing nails (212), and the axial direction of the reinforcing nails (212) is vertical to the plane of the first reinforcing net (211).
5. An anti-cracking asphalt road structure according to claim 4, characterized in that: the reinforcing nails (212) are arranged on the upper surface and/or the lower surface of the first reinforcing mesh (211), and the tips of the reinforcing nails (212) are contained in the rigid layer (21).
6. An anti-cracking asphalt road structure according to claim 4, characterized in that: the reinforcing nails (212) are arranged on the lower surface of the first reinforcing mesh (211), and the tips of the reinforcing nails (212) penetrate through the rigid layer (21) and are submerged in the roadbed layer (1).
7. An anti-cracking asphalt road structure according to claim 1, characterized in that: the second reinforcing mesh (231) is provided as a nylon mesh.
8. An anti-cracking asphalt road structure according to claim 1, characterized in that: be equipped with waterproof layer (31) between enhancement layer (2) and pavement layer (3), waterproof layer (31) set up to waterproofing membrane, waterproof layer (31) lower surface bonds with enhancement layer (2), the upper surface with pavement layer (3) bond.
9. An anti-cracking asphalt road structure according to claim 1, characterized in that: the pavement layer (3) is arranged as an asphalt mixture layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140014.5U CN215482052U (en) | 2021-05-25 | 2021-05-25 | Crack control pitch road structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140014.5U CN215482052U (en) | 2021-05-25 | 2021-05-25 | Crack control pitch road structure |
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| CN215482052U true CN215482052U (en) | 2022-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110362A (en) * | 2022-07-15 | 2022-09-27 | 河南道同路桥工程有限公司 | Construction method of highway pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110362A (en) * | 2022-07-15 | 2022-09-27 | 河南道同路桥工程有限公司 | Construction method of highway pavement structure |
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