A forming method of large-texture anti-skid noise-reducing pavement

Abstract

The application discloses a forming method of a large-texture anti-skid noise-reducing pavement, which comprises the large-texture anti-skid noise-reducing pavement, longitudinal continuous positive textures and transverse intermittent negative textures, and the upper surface of the large-texture anti-skid noise-reducing pavement is uniformly provided with the longitudinal continuous positive textures and the transverse intermittent negative textures; the longitudinal continuous positive textures and the transverse intermittent negative textures are distributed at intervals; and the longitudinal continuous positive textures and the transverse intermittent negative textures are processed through the following steps: special paving equipment is used to pave the cement or asphalt concrete, and finally a road roller is used to flatten the pavement; the cement or asphalt concrete is hardened; then the longitudinal continuous positive textures and the transverse intermittent negative textures on the pavement are processed; and the processing is performed through a thin-layer paving forming method or a milling forming method. The method can greatly improve the strength, durability, wear resistance, anti-deformation capacity and anti-skid capacity of the pavement, thereby reducing the safety hidden danger of vehicle driving, significantly reducing the driving noise and reducing the noise pollution to the environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road maintenance, in particular to a forming method of large-texture anti-skid and noise-reducing pavement. BACKGROUND

[0002] In recent years, China's highway industry has developed rapidly, with the world's first highway mileage; with the continuous rise in the number of traffic participants, the traffic volume has increased sharply, and the quality of the road has been continuously improved, especially the anti-skid performance of the functional layer of the road surface.

[0003] According to statistics, the causes of frequent accidents in traffic accident-prone sections (continuous curves, sharp curves, long and steep slopes, tunnel entrances, etc.) are closely related to the insufficient anti-skid performance of the road surface or the decline or absence of the anti-skid performance under the influence of adverse weather conditions; the insufficient anti-skid performance will increase the braking distance of the vehicle, and when the vehicle is braked and turned, it will also produce side slip, causing the vehicle to lose control, and in severe cases, even causing traffic accidents such as vehicle rollover, which will cause great damage to the life and property safety of the general traffic participants.

[0004] When a car is braked while driving, the tire and the road surface will change from rolling friction to sliding friction, and sliding friction will cause the car to have an "ice cube effect", that is, to slide in the direction where the road surface friction is smaller, and a large amount of lateral slip will lead to unpredictable serious driving accidents; therefore, in order to effectively avoid such accidents, necessary anti-skid measures need to be taken for some special road surfaces such as long and steep slopes, tunnel road surfaces, and bridge surfaces.

[0005] We know that when driving, the tire interacts with the road surface under the action of load (embedding, friction), and under the condition of a certain tire friction factor, the friction factor of the road surface determines the probability of sliding; therefore, improving the anti-skid performance of the road surface is to reasonably improve the friction factor of the road surface, that is, to improve the roughness of the road surface.

[0006] Traditional precision milling operations can improve the roughness of the road surface and improve the anti-skid performance of the road surface, but the road surface produced by traditional precision milling has a large roughness, and the tire is easily closed when rolling past the air chamber, and the gas in the air chamber produces noise during compression and release, resulting in a significant increase in driving noise.

[0007] However, asphalt concrete pavement as the main road surface paving technology has developed many new processes in the aspect of anti-skid performance after years of development. For example, OGFC pavement, i.e. large-pore open-graded drainage asphalt pavement layer, and SMA pavement, i.e. asphalt mastic stone mixture pavement; but whether it is the drainage pavement OGFC pavement designed by using the gap-graded mixture and large-pore rate or the asphalt mastic filling skeleton extrusion type dense structure pavement SMA pavement composed of more coarse aggregate, mineral powder and asphalt and a small amount of fine aggregate; all hope to obtain larger structural depth or larger microtexture through open-graded design to improve the road surface roughness value and realize the improvement of anti-skid performance.

[0008] But the above two are both formed into a flat surface by compaction machinery during the forming process. The roughness value of such a flat surface is below the flat surface, and the structural depth below the plane, i.e. negative texture, is shown. Although the roughness value of such a negative texture is large, the contribution to the anti-skid performance will be greatly reduced. SUMMARY

[0009] The technical problem to be solved by the present application is to overcome the existing defects and provide a forming method of large-texture anti-skid noise-reducing pavement. The two devices can realize the forming of large-texture anti-side-sliding pavement with transverse corrugation. The two devices can greatly improve the road surface strength, durability, wear resistance, anti-deformation ability and anti-side-sliding ability, thereby reducing the safety hazards of vehicle driving, significantly reducing the driving noise and the environmental pollution caused by noise, and effectively solving the problems in the background art.

[0010] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a forming method of large-texture anti-skid noise-reducing pavement, including large-texture anti-skid noise-reducing pavement, longitudinal continuous positive texture and transverse intermittent negative texture, the upper surface of the large-texture anti-skid noise-reducing pavement is uniformly provided with longitudinal continuous positive texture and transverse intermittent negative texture, the longitudinal continuous positive texture and the transverse intermittent negative texture are distributed at intervals, and the longitudinal continuous positive texture and the transverse intermittent negative texture are processed by the following steps:

[0011] S1) ordinary pavement laying: first, the roadbed is leveled, then the roadbed surface is compacted, the cement or asphalt concrete is paved by using special paving equipment, and finally the road surface is flattened by the road roller, and then the longitudinal continuous positive texture and the transverse intermittent negative texture on the road surface are processed and treated, and the processing is carried out by thin-layer paving forming method or milling forming method;

[0012] S2) forming: when milling forming, the milling depth is adjusted by the floating device on the device on the cement or asphalt concrete pavement, the driving device drives the milling drum to mill the continuous longitudinal positive texture and the intermittent transverse negative texture on the pavement, and finally the cleaning device cleans the processed pavement; when thin layer paving, the cement, emulsified asphalt and water materials are first mixed to form a new pavement material (MOH material), then the special locomotive is used to drag, pave and roll, and finally the transverse corrugated large texture anti-side slip forming pavement with three-dimensional staggered embedded integrated structure is formed, so that the continuous longitudinal positive texture and the intermittent transverse negative texture are processed on the surface of the newly paved pavement material.

[0013] Further, the milling device comprises a walking driving vehicle, a liftable adjusting support is installed on the walking driving vehicle, a rotatable milling drum is arranged on the liftable adjusting support, the milling drum comprises a milling drum barrel, V-shaped center forming material throwing cutter groups are uniformly arranged on the outer side of the middle of the milling drum barrel, left forming blade groups and right forming blade groups are uniformly arranged on the outer side of the milling drum barrel, the left forming blade groups and the right forming blade groups are located on the left and right sides of the center forming material throwing cutter groups, the walking driving vehicle has the ability to work, the milling drum barrel is driven to rotate by the power of the engine, the left forming blade groups and the right forming blade groups mill the pavement by clockwise rotation, the center forming material throwing cutter groups collect and throw the particle materials of the left forming blade groups and the right forming blade groups to the particle material recycling conveying device, and finally the particle material recycling vehicle, so that the required transverse corrugated large texture anti-side slip forming pavement is obtained, the depth of the milling groove is controlled by adjusting the size of the milling drum barrel of the liftable adjusting support on the adjusting device main body, that is, the depth of the groove, and the center size of the groove needs to be realized by adjusting the cutter seat size of the milling drum barrel.

[0014] Further, when thin layer paving, the paving device comprises a special traction locomotive, a paving frame is arranged on the special traction locomotive, a mixed material tank is arranged at the upper end of the paving frame, a material distribution device is installed on the paving frame, the material distribution device is located below the mixed material tank, a rotatingly connected texture forming die is arranged on the paving frame, the texture forming die is located on one side of the material distribution device, the special traction locomotive travels at a preset working speed, and materials are fed according to a preset material ratio; the materials are conveyed to the mixed material tank through the designed feeding mode, are fully mixed in the mixed material tank through the material distribution device, are paved to the ground surface along with the traveling speed of the special traction locomotive, and finally the power-driven texture forming die is used to roll and fill the gaps between the asphalt and the gravel aggregate, so that the transverse corrugated large texture anti-side slip forming pavement with three-dimensional staggered embedded integrated structure is finally formed, and the groove depth and the center size of the groove of the transverse corrugated large texture anti-side slip forming pavement need to be realized by replacing the texture forming die.

[0015] Compared with the prior art, the forming method of the large-texture anti-skid noise-reducing pavement has the advantages that the steps are simple, the large-texture anti-skid pavement with transverse corrugation can be formed by two devices, the two devices can greatly improve the strength, durability, wear resistance, deformation resistance and anti-skid ability of the pavement, thereby reducing the safety hazards of vehicle driving and significantly reducing the driving noise and the environmental pollution caused by the noise. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a schematic diagram of the pavement cross-section structure of the present application.

[0017] Fig. 2 It is a schematic diagram of the milling drum structure of the present application.

[0018] Fig. 3 It is a schematic diagram of the paving equipment structure of the present application.

[0019] In the figure: 11 large-texture anti-skid noise-reducing pavement, 12 longitudinal continuous positive texture, 13 transverse intermittent negative texture, 21 milling drum cylinder, 22 left forming blade group, 23 right forming blade group, 24 center forming and material throwing knife group, 31 mixture chute, 32 texture forming mold, 33 material distribution device DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figs. 1-3 The present application provides a technical solution: a forming method of a large-texture anti-skid noise-reducing pavement, which comprises a large-texture anti-skid noise-reducing pavement 11, a longitudinal continuous positive texture 12 and a transverse intermittent negative texture 13. The upper surface of the large-texture anti-skid noise-reducing pavement 11 is uniformly provided with the longitudinal continuous positive texture 12 and the transverse intermittent negative texture 13. The longitudinal continuous positive texture 12 and the transverse intermittent negative texture 13 are spaced apart. The longitudinal continuous positive texture 12 and the transverse intermittent negative texture 13 are processed by the following steps:

[0022] S1 general pavement laying: first, the roadbed is leveled, then the roadbed surface is compacted, the cement or asphalt concrete is paved by using a special paving equipment, and finally the road surface is flattened by a road roller. After the cement or asphalt concrete hardens, the longitudinal continuous positive texture 12 and the transverse intermittent negative texture 13 on the road surface are processed. During processing, the thin-layer paving forming method or the milling forming method is used.

[0023] S2 forming: when milling forming, the milling depth is adjusted by the floating device on the device on the cement or asphalt concrete pavement, the driving device drives the milling drum to mill the longitudinal continuous positive texture 12 and the transverse intermittent negative texture 13 on the pavement, and finally the cleaned equipment is used to clean the processed pavement; when thin layer paving, cement, emulsified asphalt and water materials are first mixed to form a new pavement material MOH material, then a special locomotive is used to drag, pave and roll, and finally a transverse wave large texture anti-side slip forming pavement with a three-dimensional staggered embedded integrated structure is formed, so as to process the longitudinal continuous positive texture 12 and the transverse intermittent negative texture 13 on the surface of the newly paved pavement material.

[0024] The milling equipment includes a walking driving vehicle, a lifting adjusting support is installed on the walking driving vehicle, a rotatable milling drum is arranged on the lifting adjusting support, the milling drum includes a milling drum barrel 21, a center forming and material throwing cutter group 24 with a V-shaped structure is uniformly arranged on the outer side of the middle of the milling drum barrel 21, left forming blade groups 22 and right forming blade groups 23 are uniformly arranged on the outer side of the milling drum barrel 21, the left forming blade groups 22 and the right forming blade groups 23 are located on the left and right sides of the center forming and material throwing cutter group 24, the walking driving vehicle has a working capacity, the milling drum barrel 21 is driven to rotate by the power of the engine, the left forming blade groups 22 and the right forming blade groups 23 mill the pavement by clockwise rotation, the center forming and material throwing cutter group 24 collects and throws the particle materials of the left forming blade groups 22 and the right forming blade groups 23 to the particle material recycling conveying device, and finally the particle material recycling vehicle, finally the required transverse wave large texture anti-side slip forming pavement is obtained, the groove depth of the milling forming is controlled by the size of the milling drum barrel 21 driven by the lifting adjusting support on the adjusting device main body, that is, the depth of the groove, and the center size of the groove needs to be realized by adjusting the size of the cutter seat of the milling drum barrel 21.

[0025] The thin layer paving uses a paving device, which comprises a special traction locomotive, a paving frame provided on the traction locomotive, a mixture tank 31 provided at the upper end of the paving frame, a distributing device 33 installed on the paving frame and located below the mixture tank 31, and a texture forming die 32 rotatably connected to the paving frame and located at one side of the distributing device 33. The special traction locomotive travels at a preset working speed and feeds materials according to a preset material ratio. The materials are delivered to the mixture tank 31 through the designed feeding mode, are fully mixed in the mixture tank 31 by the distributing device 33, are paved on the ground surface along with the traveling speed of the special traction locomotive, and finally are rolled by the power-driven texture forming die 32 to fill the gaps between the gravel aggregates, so as to finally form a transverse corrugated large-texture anti-skid forming pavement with a three-dimensional staggered embedded integrated structure. The groove depth and the groove center size of the transverse corrugated large-texture anti-skid forming pavement are realized by replacing the texture forming die 32. The forming method of the large-texture anti-skid and noise reduction pavement has simple steps and can realize the transverse corrugated large-texture anti-skid forming pavement through two devices. The two devices can greatly improve the pavement strength, durability, wear resistance, anti-deformation ability and anti-skid ability, thereby reducing the safety hazards of vehicle driving and significantly reducing the driving noise and the environmental pollution caused by the noise

[0026] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, replaced and changed in many ways without departing from the principles and spirit of the application.

Claims

1. A forming method of a large-texture anti-skid noise-reducing pavement, comprising a large-texture anti-skid noise-reducing pavement (11), longitudinally continuous positive textures (12) and transversely intermittent negative textures (13), the upper surface of the large-texture anti-skid noise-reducing pavement (11) is uniformly provided with the longitudinally continuous positive textures (12) and the transversely intermittent negative textures (13), and the longitudinally continuous positive textures (12) and the transversely intermittent negative textures (13) are distributed at intervals, characterized in that: The longitudinal continuous positive texture (12) and the transverse intermittent negative texture (13) are processed by the following steps: S1) general pavement laying: first, the roadbed is leveled, then the roadbed surface is compacted, the cement or asphalt concrete is paved by using a special paving device, and finally the road surface is flattened by a road roller, and then the longitudinal continuous positive texture (12) and the transverse intermittent negative texture (13) on the road surface are processed and treated, which are processed by a thin-layer paving forming method or a milling forming method; S2) forming: when milling forming, the special milling equipment adjusts the milling depth through the floating device on the device, and the driving device drives the milling drum to mill the longitudinal continuous positive texture (12) and the transverse intermittent negative texture (13) on the road surface, and finally the cleaning equipment cleans the processed road surface; when thin-layer paving, the cement, emulsified asphalt and water materials are mixed to form a road material MOH material, then the special locomotive is used for traction, mixing, paving and rolling, and finally the transverse corrugated large texture anti-side slip forming pavement with a three-dimensional staggered embedded integrated structure is formed, so as to process the longitudinal continuous positive texture (12) and the transverse intermittent negative texture (13) on the surface of the newly paved road material; When thin-layer paving, the paving device includes a special traction locomotive, the traction locomotive is provided with a paving frame, the upper end of the paving frame is provided with a mixed material chute (31), and the paving frame is provided with a material distribution device (33) and a rotatingly connected texture forming die (32), the material distribution device (33) is located below the mixed material chute (31), and the texture forming die (32) is located on one side of the material distribution device (33). The special traction locomotive travels at a preset operating speed, and materials are fed according to a preset material ratio; the materials are conveyed to the mixed material chute (31) through the designed feeding mode, are fully mixed in the mixed material chute (31) through the material distribution device (33), are paved on the ground surface along with the traveling speed of the special traction locomotive, and finally the gaps between the asphalt and the gravel aggregate are filled by the power-driven texture forming die (32), so as to form the transverse corrugated large texture anti-side slip forming pavement with a three-dimensional staggered embedded integrated structure. The groove depth and the groove center size of the transverse corrugated large texture anti-side slip forming pavement are realized by replacing the texture forming die (32).

2. The forming method of a large-texture anti-skid and noise-reducing pavement according to claim 1, characterized in that: The milling equipment includes a walking driving vehicle, a liftable adjusting support is installed on the walking driving vehicle, a rotatable milling drum is arranged on the liftable adjusting support, the milling drum includes a milling drum barrel (21), a center forming and throwing cutter group (24) with a V-shaped structure is uniformly arranged on the outer side of the middle of the milling drum barrel (21), left forming blade groups (22) and right forming blade groups (23) are uniformly arranged on the outer side of the milling drum barrel (21), the left forming blade groups (22) and the right forming blade groups (23) are located on the left side and the right side of the center forming and throwing cutter group (24), the walking driving vehicle has a working capacity, the milling drum barrel (21) is driven to rotate by the power of an engine, the left forming blade groups (22) and the right forming blade groups (23) mill the road surface by clockwise rotation, the center forming and throwing cutter group (24) collects the particle materials of the left forming blade groups (22) and the right forming blade groups (23) and throws the particle materials to a conveying device for recycling the particle materials, the particle materials are finally conveyed to a particle material recycling vehicle, and finally a large-texture anti-sideslip forming road surface with a required transverse corrugation is obtained.

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