Penetrating and regenerative type rolling brush seal coat construction method

Abstract

The application relates to the technical field of road maintenance construction methods, and provides a permeation and regeneration type rolling brush seal coat construction method, which comprises the following steps: confirming a region to be constructed; according to the road surface condition of the region to be constructed, determining the construction width, the permeation and regeneration reinforcing agent, and the spraying / sprinkling condition of fine sand; according to the construction width, determining the opening number of material doors and the opening number of spray arm nozzle cylinders; according to the spraying / sprinkling condition, determining the vehicle body advancing speed, the spray flow of the reinforcing agent spray arm, the opening and closing size of the material door adjusting device, and the material roller shaft rotating speed and the rotating speed of the rolling brush roller in the rolling brush device; the fine sand spreader is pushed by an oil cylinder A to rotate to a working state with a suspension shaft as a fulcrum; the vehicle body is controlled to advance, the permeation and regeneration reinforcing agent is synchronously sprayed, the fine sand is synchronously sprinkled, and the rolling brush device rotates in the reverse direction along the driving direction. Through the technical scheme, the aged asphalt on the asphalt road surface can be activated and regenerated, slight cracks can be closed, and the service life can be effectively prolonged.

Description

Technical Field

[0001] This invention relates to the technical field of road maintenance construction methods, and more specifically, to a method for applying a penetrating and regenerating roller seal coat. Background Technology

[0002] my country's highways have transitioned from a period of large-scale construction to a new stage of "equal emphasis on construction and maintenance." Under the influence of factors such as climate and traffic load, the asphalt surface ages, and the function of asphalt pavement deteriorates. This manifests as a series of defects, either sequentially or simultaneously, including pavement whitening, brittleness, fine aggregate shedding, capillary cracks, transverse and longitudinal cracks, network cracks, block cracks (crazing), potholes, pitting, looseness, and increased permeability. These defects affect driving comfort and safety, especially when accompanied by water damage, which accelerates the development of defects. The key to asphalt pavement maintenance is to penetrate, revitalize, and regenerate the aged asphalt surface layer, restore the asphalt's self-healing properties, seal micro-cracks in the pavement, and prevent further occurrence and expansion of pavement defects.

[0003] However, in related technologies, fog seal and sand-containing fog seal can only supplement the missing asphalt film on the road surface, and neither can achieve the penetration, regeneration, and reinforcement of aged asphalt within a certain depth below the road surface. Spreading a premixed liquid material and fine sand mixture using sand-containing fog seal spraying equipment is not only limited by the premixed material system, restricting the performance indicators of the liquid material and the particle size and spread amount of the fine sand, resulting in poor road performance, but also adds the premixing and washing processes, making the process cumbersome. Furthermore, the premixed material needs to be used within a short time, which can easily lead to pipe blockage and material waste. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, the purpose of this invention is to provide a method for constructing a penetrating and regenerating roller seal, which uses a special construction equipment for penetrating and regenerating roller seal. Based on the road surface conditions of the area to be constructed, the spraying conditions of the penetrating and regenerating reinforcing agent and the spreading conditions of the fine sand are determined, and the vehicle speed, the spraying flow rate of the penetrating and regenerating reinforcing agent and the spreading flow rate of the fine sand are determined. By adjusting the number of material gates opened and the number of nozzle cylinders opened, the material spraying / spreading width and the construction width are matched. During vehicle movement, a penetrating regeneration reinforcing agent is sprayed sequentially and simultaneously, and fine sand is spread. The penetrating regeneration reinforcing agent penetrates downwards, regenerating and reinforcing the aged asphalt on the road surface, while simultaneously wetting and adhering to the fine sand to form the anti-skid service function of the road surface. At the same time, the roller brush device contacts the road surface and rotates counterclockwise along the direction of travel. Utilizing the squeezing and brushing action of the brush blades on the roller brush, the fine sand and penetrating regeneration reinforcing agent are further evenly dispersed on the road surface, and the fine sand and penetrating regeneration reinforcing agent are forcibly squeezed into the road structure and micro-cracks, improving the uniformity of the fine sand's coating and the stability of its adhesion. This ensures more durable anti-skid performance, enhances the penetration effect of the penetrating regeneration reinforcing agent, accelerates the penetration, regeneration, and reinforcement of the aged asphalt on the road surface, and increases the original road surface friction coefficient.

[0006] To achieve the above objectives, the present invention provides a method for applying a permeation-regenerative roller seal, employing specialized equipment for this application. The equipment includes: a vehicle body; a reinforcing agent tank, a reinforcing agent pump, and an aggregate bin mounted on the vehicle body; a reinforcing agent spraying arm installed below the rear end of the vehicle body and connected to the reinforcing agent pump; and a fine sand spreader installed below the rear end of the aggregate bin. A material gate adjustment device is provided between the aggregate bin and the fine sand spreader. The material gate adjustment device includes controls for the opening degree of the material gates and the number of material gates opened. The device comprises 10 to 14 material gates, which can be controlled independently or centrally. A roller brush device is installed at the rear of the vehicle body. The fine sand spreader is located between the roller brush device and the reinforcing agent spraying arm. The fine sand spreader includes: a front wall plate, a rear wall plate, and side plates that are configured to cooperate with each other. A suspension shaft is installed on the top of the rear arm plate, and the suspension shaft is hung on the mounting plate of the material gate adjustment device. A hydraulic cylinder A is also included, with its fixed end installed on the vehicle body and its movable end connected to the front wall plate to drive the fine sand spreader to rotate around the suspension shaft as a fulcrum to adjust the working angle.

[0007] The method includes the following steps:

[0008] Identify the area to be constructed, ensure traffic safety, clean the road surface, and treat any local defects on the road surface.

[0009] Based on the road surface conditions of the area to be constructed, determine the construction width, the application of the penetrating regeneration reinforcing agent, and the application of fine sand. The application of the penetrating regeneration reinforcing agent includes, but is not limited to, the amount of regeneration reinforcing agent used per square meter of road surface and the application width. The application of fine sand includes, but is not limited to, the amount of fine sand used per square meter of road surface and the application width.

[0010] Based on the construction width, determine the number of opening gates in the material gate adjustment device and the number of opening cylinders of the reinforcing agent spraying arm nozzles, so that the spraying width of the recycled reinforcing agent and the spreading width of the fine sand match the construction width.

[0011] Based on the determined application of the penetrating regeneration reinforcing agent and the spreading of fine sand, the vehicle's travel speed, the spray flow rate of the reinforcing agent spraying arm, the opening and closing size of the material gate adjustment device, the rotation speed of the material roller shaft, and the rotation speed of the roller brush in the roller brush device are determined. The fine sand spreading flow rate is the product of the vehicle's travel speed, the fine sand spreader's spreading width, and the amount of fine sand used per square meter of road surface. This is adjusted by controlling the opening and closing size of the material gate adjustment device, the number of material gates opened, and the rotation speed of the material roller shaft. The spray flow rate of the reinforcing agent spraying arm is adjusted by the reinforcing agent pump's rotation speed, and the penetrating regeneration reinforcing agent spreading width is adjusted by controlling the number of nozzle cylinders opened. The fine sand spreader is rotated to the working state by hydraulic cylinder A, using the suspension shaft as a fulcrum.

[0012] Controlling the vehicle's movement, the penetrating regeneration reinforcing agent is sprayed and fine sand is spread in sequence and simultaneously. The roller brush device contacts the road surface after the penetrating regeneration reinforcing agent is sprayed and fine sand is spread, and rotates in the opposite direction of travel to evenly disperse the fine sand and regeneration reinforcing agent into the road surface and squeeze them into the road structure and micro-cracks.

[0013] Preferably, the bottom of the rear wall plate of the fine sand spreader has a backward-convex bending structure, the width of the inlet formed between the rear wall plate and the front wall plate is 80-100mm, the width of the outlet is 55-70mm, and the width of the widest part of the bending structure is 150-170mm.

[0014] Preferably, the roller brush device includes: a lifting assembly A mounted on the vehicle body; a lifting assembly B connected to the lifting assembly A via a movable slide rail; a sealing cover connected to the bottom of the lifting assembly B; and a roller brush roller embedded inside the sealing cover via bearing seats or seated bearings on the two outer side panels of the sealing cover. The roller brush roller includes a main shaft, multiple pairs of detachably mounted auxiliary shafts, and an end shaft; a hydraulic motor mounted on the sealing cover, with one of two pulleys connected by a belt mounted on the hydraulic motor and the other mounted on the roller brush roller.

[0015] Before controlling the vehicle's movement and sequentially and synchronously spraying the penetrating regeneration reinforcing agent and spreading fine sand, the following steps are also included:

[0016] The working width of the penetrating regeneration roller seal is determined based on the road surface conditions of the area to be constructed.

[0017] Adjust the length of the brush roller in the brush device using the secondary shaft, depending on the working width.

[0018] Preferably, the movable slide rail in the roller brush device includes: a guide rail connected to the lifting assembly A, a slider slidably connected to the guide rail, and a steel support connected to the slider, the other end of which is connected to the lifting assembly B; the sealing cover includes: a main cover and secondary covers A and B at both ends of the main cover, the main cover being fixedly installed in the middle position of the guide rail, and the tops of the secondary covers A and B being connected to the lifting assembly B.

[0019] The penetrating regeneration roller seal application method also includes the following steps:

[0020] Adjust the steel support structure by sliding the slider, and simultaneously slide the secondary guards A and B to adapt them to the adjusted length of the brush roller.

[0021] Preferably, the lifting assembly B in the roller brush device includes: an outer tube B connected to the steel support frame, with a bearing installed inside the outer tube B; an inner tube B sleeved inside the outer tube B, connected to the auxiliary protective cover, with a screw seat installed inside the inner tube B; one end of a screw rod is mounted on the bearing inside the outer tube B, and the other end is sleeved on the screw seat inside the inner tube B, so as to adjust the vertical displacement of the inner tube B relative to the outer tube B by rotating the screw rod.

[0022] The penetrating regeneration roller seal application method also includes the following steps:

[0023] After the lifting component A is lowered, the lifting component B is finely adjusted by rotating the screw, so that the brush blades on the roller contact the road surface.

[0024] Preferably, the method for applying a penetrating regenerative roller seal also includes the following steps:

[0025] Adjust the hydraulic motor to control the roller brush to rotate in the opposite direction of the travel direction, and control the rotation speed of the roller brush to be ≥200r / min, and the linear speed to be greater than the travel speed.

[0026] The permeation and regeneration type roller seal construction method proposed in this invention has the following beneficial technical effects:

[0027] (1) In the penetrating regeneration type roller seal construction method proposed in this invention, the spraying of the penetrating regeneration reinforcing agent and the spreading of fine sand are carried out simultaneously. The spreading of fine sand has good uniformity. The penetrating regeneration reinforcing agent penetrates downwards, regenerating and reinforcing the aged asphalt of the road surface, and infiltrates and adheres to the fine sand upwards to form the anti-skid service function of the road surface. After the implementation of the penetrating regeneration type roller seal, the penetration, ductility and softening point of the asphalt are significantly improved. After 30 days of construction, the penetration (25℃, 5s, 100g) 2-10mm below the road surface increases by ≥20%, the ductility (15℃, 5cm / min) increases by ≥25%, the softening point (ring and ball method) decreases by ≤10%, and the PG grade is improved from PG64-12 to PG70-22; after 90 days of construction, the penetration (25℃, 5s, 100g) 2-10mm below the road surface increases by ≥20%. The penetration rate is ≥18%, the ductility (15℃, 5cm / min) improvement rate is ≥22%, the softening point (ring and ball method) reduction rate is ≤10%, and the PG grade is upgraded from PG64-12 to PG70-22; after 90 days of construction, the penetration rate (25℃, 5s, 100g) 10-20mm below the road surface is ≥5%, the ductility (15℃, 5cm / min) improvement rate is ≥20%, the softening point (ring and ball method) reduction rate is ≤8%, and the PG grade is upgraded from PG64-12 to PG70-16.

[0028] (2) In the construction method of the penetrating regeneration type roller seal proposed in this invention, the penetrating regeneration reinforcing agent and fine sand are sprayed / spread independently without premixing and are not limited by the premixed material system. The wetting and adhesion effects are guaranteed during the spraying, spreading and squeezing of the roller. The operation is simpler and the scope of application is wider. The uniformity of the coating and the adhesion stability of the fine sand are better.

[0029] (3) The permeation and regeneration type roller seal construction method proposed in this invention adjusts the length of the roller and the length of the sealing cover before controlling the vehicle to move forward for construction, so that they can adapt to the road surface conditions and greatly improve the work efficiency.

[0030] (4) The permeation and regeneration type roller seal construction method proposed in this invention adjusts the height of the roller brush before controlling the vehicle to move forward to make it contact the road surface, and the construction contact force is relatively balanced, which further ensures the road maintenance effect.

[0031] (5) The permeation and regeneration type roller seal construction method proposed in this invention adjusts the hydraulic motor before controlling the vehicle to move forward, so as to provide a relatively constant rotational kinetic energy to the roller, so that it rotates in the opposite direction along the driving direction during the vehicle's movement, thereby improving the roller seal effect.

[0032] (6) The penetrating and regenerating roller seal layer constructed using the method proposed in this invention can both revitalize and regenerate aged asphalt at a depth of 5-10 mm on the asphalt pavement surface and seal minor cracks, thereby effectively extending its service life. It also functions to seal water, increase the friction coefficient, improve functionality, and beautify the pavement. By spraying the penetrating and regenerating roller seal layer material and spreading fine sand, the pores between the asphalt mixtures are replenished, restoring the chemical composition and viscoelasticity of the aged asphalt. This improves the flexibility, self-healing properties, and crack resistance of the asphalt pavement, thus achieving the functions of sealing water and increasing the friction coefficient.

[0033] (7) The penetrating regeneration reinforcing agent used in the penetrating regeneration type roller seal construction method proposed in this invention is liquid at room temperature, which has the advantages of simple construction, short traffic closure time (traffic can be opened after 1-2 hours), low environmental pollution and significant benefits.

[0034] Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0035] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0036] Figure 1 This paper shows a front view of the special construction equipment for the penetration-regeneration roller seal method proposed in this invention.

[0037] Figure 2 This shows a schematic diagram of the main structure of the fine sand spreader in the special construction equipment for penetration regeneration roller seal;

[0038] Figure 3 This diagram shows a side view of the fine sand spreader in a special construction equipment for penetrating and regenerating roller seal.

[0039] Figure 4 This shows a schematic diagram of the main structure of the roller brush device in the special construction equipment for penetrating and regenerating roller seal coating;

[0040] Figure 5 This shows a side view of the roller brush device in a special construction equipment for penetrating and regenerating roller seal coating;

[0041] Figure 6 This shows a front view of the roller brush device in the contracted state of the special construction equipment for penetrating and regenerating roller seal.

[0042] Figure 7This diagram shows the structure of the lifting component B in the roller brush device of the special construction equipment for penetration regeneration roller seal.

[0043] in, Figures 1 to 7 The correspondence between the reference numerals and components in the attached drawings is as follows:

[0044] 1. Vehicle body, 2. Reinforcing agent spraying arm, 3. Fine sand spreader, 3-1. Rear wall panel, 3-2. Front wall panel, 3-3. Side panel, 3-4. Suspension shaft, 3-5. Hydraulic cylinder A, 4. Roller brush device, 4-1. Main shaft, 4-2. Sub-shaft, 4-3. Brush blade, 4-4. End shaft, 4-4-1. End shaft A, 4-4-2. End shaft B, 4-5. Spline, 4-6. Hydraulic cylinder B, 4-7. Limit sleeve, 4-8. Limit seat, 4-9. Slider, 4-10. Guide rail, 4-11. Limit block, 4-12. Steel structure support, 4-13. Lifting assembly Part B, 4-13-1. Inner tube B, 4-13-2. Outer tube B, 4-13-3. Lead screw, 4-13-4. Bearing, 4-13-5. Lead screw seat, 4-14. Main guard, 4-15. Secondary guard, 4-15-1. Secondary guard A, 4-15-2. Secondary guard B, 4-16. Bearing seat, 4-17. Bearing with seat, 4-18. Rubber plate, 4-19. Flexible mop, 4-20. Cleaning port, 4-21. Hydraulic motor, 4-22. Pulley, 5. Material gate adjustment device, 6. Aggregate bin, 7. Reinforcing agent tank, 8. Reinforcing agent pump. Detailed Implementation

[0045] This invention discloses a method for applying a permeable regenerative roller seal coating. Those skilled in the art can refer to this document and appropriately modify the process parameters to achieve the desired result. It is particularly important to note that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included in this invention. The methods and applications of this invention have been described through preferred embodiments. Those skilled in the art can clearly modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit, and scope of this invention to realize and apply the technology of this invention.

[0046] The present invention will be further illustrated below with reference to the embodiments:

[0047] A method for applying a penetrating and regenerating roller seal coating, employing methods such as... Figures 1 to 7The permeation regeneration type roller seal equipment shown includes: a vehicle body 1; a reinforcing agent tank 7 for storing reinforcing agent, a reinforcing agent pump 8 for conveying reinforcing agent, and an aggregate bin 6 for storing fine sand, all mounted on the vehicle body 1; a reinforcing agent spraying arm 2, installed below the rear end of the vehicle body 1 and connected to the reinforcing agent pump 8; a fine sand spreader 3, installed below the rear end of the aggregate bin 6, with a material gate adjustment device 5 between the aggregate bin 6 and the fine sand spreader 3; and a roller brush device 4, installed at the rear end of the vehicle body 1, with the fine sand spreader 3 positioned between the roller brush device 4 and the reinforcing agent spraying arm 2. The reinforcing agent spraying arm adopts the applicant's CN...

[0048] Chinese Utility Model Patent No. 210420788U, the material gate adjustment device adopts the applicant's CN...

[0049] Chinese Utility Model Patent No. 214530072U. A fine sand spreader 3 includes: a front wall plate 3-2, a rear wall plate 3-1, and a side plate 3-3, all configured to work together. The top of the rear wall plate 3-1 is equipped with a suspension shaft 3-4 for mounting the fine sand spreader 3. A hydraulic cylinder A3-5 is connected to the front of the front wall plate 3-2, and the other end of the hydraulic cylinder A3-5 is mounted on the vehicle body 1. Therefore, the working angle of the fine sand spreader 3 can be adjusted using the suspension shaft 3-4 as a fulcrum and via the hydraulic cylinder A3-5.

[0050] The application method for penetrating and regenerating roller seal includes the following steps:

[0051] S102, Confirm the area to be constructed, ensure traffic safety, clean the road surface, and treat any local defects on the road surface.

[0052] S104. Based on the road surface conditions of the area to be constructed, determine the construction width, the application of the penetrating regeneration reinforcing agent, and the application of fine sand. The application of the penetrating regeneration reinforcing agent includes, but is not limited to, the amount of penetrating regeneration reinforcing agent used per square meter of road surface and the application width. The application of fine sand includes, but is not limited to, the amount of fine sand used per square meter of road surface and the application width of fine sand.

[0053] S106, Based on the construction width, determine the number of openings of the material gate in the material gate adjustment device and the number of openings of the nozzle cylinder of the reinforcing agent spraying arm, so that the spraying width of the recycled reinforcing agent and the spreading width of the fine sand match the construction width.

[0054] S108, based on the determined application of the penetrating regeneration reinforcing agent and the fine sand application, determine the vehicle's travel speed, the spray flow rate of the reinforcing agent spraying arm, the opening and closing size of the material gate adjustment device, the rotation speed of the cloth roller shaft, and the rotation speed of the roller brush in the roller brush device. The fine sand application rate is the product of the vehicle's travel speed, the fine sand spreader's application width, and the amount of fine sand used per square meter of road surface. This is adjusted by controlling the opening and closing size of the material gate adjustment device, the rotation speed of the cloth roller shaft, and the number of material gates opened. Specifically, the material gate's discharge width is blocked by using a closed material gate cylinder or a stop block. The spray flow rate of the reinforcing agent spraying arm is adjusted by the reinforcing agent pump speed, and the application width is adjusted by controlling the number of nozzle cylinders opened.

[0055] S110, the fine sand spreader is driven by hydraulic cylinder A to rotate around the suspension shaft to the working state;

[0056] S112 controls the vehicle's movement, sequentially and synchronously spraying penetrating regeneration reinforcing agent and spreading fine sand. The roller brush device contacts the road surface after spraying the penetrating regeneration reinforcing agent and spreading fine sand, and rotates in the opposite direction of travel to evenly disperse the fine sand and regeneration reinforcing agent into the road surface and squeeze them into the road structure and micro-cracks.

[0057] This allows for the simultaneous spraying of the penetrating regenerated reinforcing agent and the spreading of fine sand. The fine sand spreading is highly uniform, and the penetrating regenerated reinforcing agent penetrates downwards, regenerating and reinforcing the aged asphalt, while simultaneously wetting and adhering to the fine sand to provide anti-skid service. After the implementation of the penetrating regenerated brush seal, the asphalt penetration, ductility, and softening point are significantly improved. The penetrating regenerated reinforcing agent and fine sand do not require premixing, and are not limited by premixed material systems. The wetting and adhesion effects are guaranteed during spraying, spreading, and roller application, making the operation simpler, the application range wider, and the fine sand coating uniformity and adhesion stability better.

[0058] Furthermore, such as Figure 2 and Figure 3 As shown, the rear wall panel 3-1 is a bent plate at a certain angle. The bottom of the rear wall panel 3-1 has a backward-convex bent structure. The width of the entrance formed between the rear wall panel 3-1 and the front wall panel 3-2 is 80-100mm, the width of the exit is 55-70mm, and the width at the widest point of the bent structure is 150-170mm. This reduces the impact of gravity on fine sand during construction and improves the uniformity of longitudinal and transverse spreading and the accuracy of the spreading amount per unit area.

[0059] Furthermore, such as Figures 4 to 7As shown, the roller brush device 4 includes: a lifting assembly A mounted on the vehicle body 1; a lifting assembly B4-13 connected to the lifting assembly A via a sliding rail; a sealing cover connected to the bottom of the lifting assembly B4-13; and a roller brush, which is embedded inside the sealing cover via bearing seats or seated bearings on the two outer side panels of the sealing cover. The roller brush includes a main shaft 4-1, a secondary shaft 4-2, a brush blade 4-3, and an end shaft 4-4. The secondary shaft 4-2 is located on both sides of the main shaft 4-1, and the end shaft 4-4 is located at the outer end of the secondary shaft 4-2. The main shaft 4-1 and the secondary shaft 4-2, and the secondary shaft 4-2 and the end shaft 4-4 are all connected by splines 4-5. The brush blade 4-3 is fitted onto the main shaft 4-1 and the secondary shaft 4-2. The secondary shafts 4-2 are installed in pairs. Multiple pairs of secondary shafts 4-2 can be installed depending on the construction width, and the secondary shafts 4-2 are connected to each other using splines 4-5. Alternatively, the secondary shafts 4-2 can be omitted, in which case the end shaft 4-4 will directly spline 4-5 into the main shaft 4-1. The brush blades 4-3 can be made of wire, nylon, PP, or a combination of wire and nylon. The main shaft 4-1 has the same width as the vehicle body 1. Installing the secondary shafts 4-2 can extend the construction width to 4m. The hydraulic motor 4-21 is mounted on a sealed cover. One of the two pulleys 4-22 connected by a belt is mounted on the hydraulic motor 4-21, and the other is mounted on the roller brush.

[0060] Before controlling the vehicle's movement and sequentially and synchronously spraying the penetrating regeneration reinforcing agent and spreading fine sand, the following steps are also included:

[0061] S202, Determine the working width of the penetrating recycling roller seal based on the road surface conditions of the area to be constructed;

[0062] S204, adjust the length of the brush roller in the brush device using the secondary shaft according to the working width.

[0063] This allows it to adapt to different road surface conditions and ensure operational efficiency.

[0064] Furthermore, such as Figures 4 to 7As shown, the movable slide rail in the roller brush device includes: a guide rail 4-10, a slider 4-9, and a steel support frame 4-12. The guide rail 4-10 is directly connected to the lifting component A. The slider 4-9 is located below the guide rail 4-10. One end of the steel support frame 4-12 is mounted on the slider 4-9, and the other end is connected to the lifting component B 4-13. The movable slide rail allows for horizontal displacement of the lifting component B 4-13 relative to the lifting component A, thereby adjusting the width of the sealing cover to meet different width requirements. The guide rail 4-10 is equipped with a limit block 4-11 and a limit seat 4-8. The limit block 4-11 is fixed to both ends of the guide rail 4-10 through bolt holes to prevent the slider 4-9 from exceeding its limit. The limit seat 4-8 is located at both ends of the slider 4-9 to fix the construction width. The sealing cover includes a main cover 4-14 and a secondary cover 4-15, with the main cover 4-14 fixedly installed on the guide rail 4-10. The secondary protective cover 4-15 includes secondary protective cover A 4-15-1 and secondary protective cover B 4-15-2. The secondary protective covers 4-15 are respectively located at both ends of the main protective cover 4-14 and at the lower part of the main protective cover 4-14. The secondary protective covers 4-15 can achieve horizontal displacement relative to the main protective cover 4-14. The main protective cover 4-14 has front and rear wall panels and is open at both ends; the secondary protective cover 4-15 has front and rear wall panels and an outer side panel, but no inner side panel, thus achieving overall sealing of the protective cover.

[0065] The penetrating regeneration roller seal application method also includes the following steps:

[0066] S302, the steel structure support is adjusted by sliding the slider, while the secondary guards A and B are slid to adapt to the length of the adjusted roller brush.

[0067] This further ensures adaptability to different construction widths, enabling it to adapt to different road conditions and improve work efficiency.

[0068] Furthermore, such as Figures 4 to 7As shown, the lifting assembly A in the roller brush device includes a hydraulic cylinder B 4-6 and a limiting sleeve 4-7. One end of the hydraulic cylinder B 4-6 is mounted on the vehicle body 1, and the other end is mounted on the guide rail 4-10. The vertical displacement of the sliding rail relative to the vehicle body 1 can be achieved through the limiting sleeve 4-7 and the hydraulic cylinder B 4-6, thereby realizing the height adjustment of the sealing cover and the roller brush relative to the road surface. The lifting assembly B 4-13 includes an outer tube B 4-13-2, an inner tube B 4-13-1, and a lead screw 4-13-3. The outer tube B 4-13-2 is connected to the steel structure support 4-12, and the inner tube B 4-13-1 is connected to the auxiliary cover 4-15. Meanwhile, the outer tube B 4-13-2 is equipped with a bearing 4-13-4, and the inner tube B 4-13-1 is equipped with a screw seat 4-13-5. By rotating the screw 4-13-3, the inner tube B 4-13-1 can be vertically displaced relative to the outer tube B 4-13-2, thereby enabling fine adjustment of the height of the sealing cover and the roller brush relative to the road surface.

[0069] The penetrating regeneration roller seal application method also includes the following steps:

[0070] S402, after the lifting component A is lowered, the lifting component B is finely adjusted by rotating the screw so that the brush blades on the roller contact the road surface.

[0071] This ensures that the brush blades of the roller can better contact the road surface under different road conditions, thereby making better use of the squeezing and rolling action of the brush blades to evenly disperse the fine sand and penetrating regeneration reinforcing agent on the road surface, and forcibly squeezing the fine sand and penetrating regeneration reinforcing agent into the road surface structure and micro-cracks.

[0072] Furthermore, the penetrating regeneration roller seal application method also includes the following steps:

[0073] S502, adjust the hydraulic motor to control the roller brush to rotate in the opposite direction of the travel direction, and control the rotation speed of the roller brush to be ≥200r / min, and the linear speed to be greater than the travel speed.

[0074] Therefore, by adjusting the hydraulic motor, a relatively constant rotational kinetic energy can be provided to the roller brush, causing it to rotate in the opposite direction as the vehicle moves forward, thereby improving the sealing effect of the roller brush.

[0075] In addition, any uneven areas discovered during construction should be repaired promptly, and sufficient curing time should be ensured depending on the type of construction and weather conditions. Traffic can generally be opened 1-2 hours after construction, once wheel sticking no longer occurs.

[0076] Example 1

[0077] A penetrating regeneration roller seal was applied to the overtaking lane pavement structure of a highway that had been in operation for 5 years.

[0078] Identify the area to be constructed, ensure traffic safety, clean the road surface, and treat any local defects on the road surface.

[0079] Based on the road surface conditions of the area to be constructed, the application of the penetrating regeneration reinforcing agent and the application of fine sand were determined. Specifically, the amount of penetrating regeneration reinforcing agent used per square meter of road surface was 0.35 kg, and the amount of fine sand used per square meter of road surface was 0.5 kg. The construction width was 3.6 m. The number of material gates to be opened was determined to be 13, and the number of cylinders to be opened on the reinforcing agent spraying arm nozzles was determined to be 28, so that the spraying width of the regeneration reinforcing agent and the application width of the fine sand matched the construction width. The average vehicle speed was determined to be 200 m / min, the spraying flow rate of the reinforcing agent spraying arm was determined to be 252 kg / min, which was achieved by adjusting the speed of the reinforcing agent pump to 147 r / min. The opening degree of the material gate adjustment device was determined to be 70 mm, the speed of the material roller shaft was determined to be 40 r / min, and the flow rate of the fine sand was determined to be 360 ​​kg / min. The working angle of the fine sand spreader was adjusted so that the angle between the wall plate of the fine sand spreader and the vertical direction was 17°.

[0080] Based on the road surface conditions of the area to be constructed, the length of the roller brush in the roller brush device is adjusted to 3.6m. At the same time, the steel hook bracket is adjusted by the slider, and the auxiliary guards A and B are slidable to adapt to the adjusted length of the roller brush.

[0081] After the lifting component A is lowered, the lifting component B is finely adjusted by rotating the screw, so that the brush blades on the roller contact the road surface.

[0082] Adjust the hydraulic motor to control the roller brush to rotate counterclockwise along the direction of travel, and control the rotation speed of the roller brush to 220 r / min, so that the pressure of the brush blade on the road surface is 2 to 20 kPa.

[0083] Controlling the vehicle's movement, the penetrating regeneration reinforcing agent is sprayed and fine sand is spread in sequence and simultaneously. The roller brush device comes into contact with the road surface after the penetrating regeneration reinforcing agent is sprayed and fine sand is spread. It rotates in the opposite direction of travel, evenly dispersing the fine sand and regeneration reinforcing agent into the road surface and squeezing them into the road structure and micro-cracks.

[0084] The changes in the test indicators after core sampling and asphalt extraction before and after the implementation are shown in Table 1 below.

[0085] Table 1. Changes in indicators of SMA-16 pavement structure before and after construction of the overtaking lane of a certain expressway.

[0086]

[0087]

[0088] It can be seen that the penetrating and regenerating roller seal effectively penetrates to about 1 cm below the road surface, regenerating and strengthening the indicators of aged asphalt, effectively closing the micro-cracks in the original road surface, stabilizing the road structure and preventing fine aggregate from falling off, and extending the service life of the road surface by 2 to 3 years.

[0089] Example 2

[0090] A penetrating recycling roller seal was applied to the AC-13 pavement structure of a national highway that had been open to traffic for two years.

[0091] Identify the area to be constructed, ensure traffic safety, clean the road surface, and treat any local defects on the road surface.

[0092] Based on the road surface conditions of the area to be constructed, the application of the penetrating regeneration reinforcing agent and the application of fine sand were determined. Specifically, the amount of penetrating regeneration reinforcing agent used per square meter of road surface was 0.38 kg, and the amount of fine sand used per square meter of road surface was 0.6 kg. The construction width was 3.75 m. The number of material gates to be opened was determined to be 13, and the number of cylinders to be opened on the reinforcing agent spraying arm nozzles was determined to be 29, so that the spraying width of the regeneration reinforcing agent and the application width of the fine sand matched the construction width. The average vehicle speed was determined to be 210 m / min, the spraying flow rate of the reinforcing agent spraying arm was determined to be 299.25 kg / min, which was achieved by adjusting the speed of the reinforcing agent pump to 134 r / min. The opening degree of the material gate adjustment device was 70 mm, the speed of the material roller was 40 r / min, and the flow rate of the fine sand was 472.5 kg / min. The working angle of the fine sand spreader was adjusted so that the angle between the wall plate of the fine sand spreader and the vertical direction was 18°.

[0093] Based on the road surface conditions of the area to be constructed, the length of the roller brush in the roller brush device is adjusted to 3.75m. At the same time, the steel hook bracket is adjusted by the slider, and the auxiliary guards A and B are slidable to adapt to the adjusted length of the roller brush.

[0094] After the lifting component A is lowered, the lifting component B is finely adjusted by rotating the screw, so that the brush blades on the roller contact the road surface.

[0095] Adjust the hydraulic motor to control the roller brush to rotate counterclockwise along the direction of travel, and control the rotation speed of the roller brush to 220 r / min, so that the pressure of the brush blade on the road surface is 2 to 20 kPa.

[0096] Controlling the vehicle's movement, the penetrating regeneration reinforcing agent is sprayed and fine sand is spread in sequence and simultaneously. The roller brush device comes into contact with the road surface after the penetrating regeneration reinforcing agent is sprayed and fine sand is spread. It rotates in the opposite direction of travel, evenly dispersing the fine sand and regeneration reinforcing agent into the road surface and squeezing them into the road structure and micro-cracks.

[0097] The changes in the test indicators after core sampling and asphalt extraction before and after the implementation are shown in Table 2 below.

[0098] Table 2. Changes in indicators of AC-13 pavement structure of a certain national highway before and after construction.

[0099]

[0100] It can be seen that the penetrating and regenerating roller seal effectively penetrates to about 1 cm below the road surface, regenerating and strengthening the indicators of aged asphalt, effectively closing the micro-cracks in the original road surface, stabilizing the road structure and preventing fine aggregate from falling off, and extending the service life of the road surface by 2 to 3 years.

[0101] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for applying a penetrating and regenerating roller seal coating, characterized in that, A specialized construction equipment for infiltration and regeneration type roller seal coating is adopted. The equipment includes: a vehicle body; a reinforcing agent tank, a reinforcing agent pump, and an aggregate bin mounted on the vehicle body; a reinforcing agent spraying arm mounted below the rear end of the vehicle body and connected to the reinforcing agent pump; a fine sand spreader mounted below the rear end of the aggregate bin, with a material gate adjustment device between the aggregate bin and the fine sand spreader; a roller brush device mounted at the rear end of the vehicle body, with the fine sand spreader positioned between the roller brush device and the reinforcing agent spraying arm. The fine sand spreader includes: a front wall plate, a rear wall plate, and a side plate that are configured to cooperate with each other. A suspension shaft is mounted on the top of the rear wall plate, and the suspension shaft is mounted on the mounting plate of the material gate adjustment device; and a hydraulic cylinder A, with its fixed end mounted on the vehicle body and its movable end connected to the front wall plate to drive the fine sand spreader to rotate around the suspension shaft as a fulcrum to adjust the working angle. The roller brush device includes: a lifting assembly A mounted on the vehicle body; a lifting assembly B connected to the lifting assembly A via a movable slide rail; a sealing cover connected to the bottom of the lifting assembly B; a roller brush, which is embedded inside the sealing cover via bearing seats or seated bearings on the two outer side panels of the sealing cover, the roller brush including a main shaft, multiple pairs of detachably mounted auxiliary shafts, and an end shaft; and a hydraulic motor mounted on the sealing cover, with one of two pulleys connected by a belt mounted on the hydraulic motor and the other mounted on the roller brush. The bottom of the rear wall plate of the fine sand spreader has a backward-convex bending structure. The width of the inlet formed between the rear wall plate and the front wall plate is 80-100mm, the width of the outlet is 55-70mm, and the width of the widest part of the bending structure is 150-170mm. The method includes the following steps: Identify the area to be constructed, ensure traffic safety, clean the road surface, and treat any local defects on the road surface. Based on the road surface conditions of the area to be constructed, determine the construction width, the application of the penetrating regeneration reinforcing agent, and the application of fine sand. The application of the penetrating regeneration reinforcing agent includes, but is not limited to, the amount of penetrating regeneration reinforcing agent used per square meter of road surface and the application width. The application of fine sand includes, but is not limited to, the amount of fine sand used per square meter of road surface and the application width. Based on the construction width, determine the number of opening gates in the material gate adjustment device and the number of opening cylinders of the reinforcing agent spraying arm nozzles, so that the spraying width of the recycled reinforcing agent and the spreading width of the fine sand match the construction width. Based on the determined application of the penetrating regeneration reinforcing agent and the spreading of fine sand, the vehicle's travel speed, the spray flow rate of the reinforcing agent spraying arm, the opening and closing size of the material gate adjustment device, the rotation speed of the material roller shaft, and the rotation speed of the roller brush in the roller brush device are determined. Among them, the flow rate of fine sand is the product of the vehicle's travel speed, the spreading width of the fine sand spreader, and the amount of fine sand used per square meter of road surface, and is adjusted by controlling the opening and closing size of the material gate adjustment device, the number of material gates opened, and the rotation speed of the material roller shaft; the spray flow rate of the reinforcing agent spraying arm is adjusted by the rotation speed of the reinforcing agent pump, and the spreading width of the penetrating regeneration reinforcing agent is adjusted by controlling the number of nozzle cylinders opened; The fine sand spreader is driven by hydraulic cylinder A to rotate around the suspension shaft to the working state; The working width of the penetrating regeneration roller seal is determined based on the road surface conditions of the area to be constructed. Adjust the length of the brush roller in the brush unit using the secondary shaft, according to the working width; After the lifting assembly A descends, the lifting assembly B is finely adjusted by rotating the lead screw, so that the brush blades on the roller contact the road surface; Controlling the vehicle's movement, the penetrating regeneration reinforcing agent is sprayed and fine sand is spread in sequence and simultaneously. The roller brush device comes into contact with the road surface after the penetrating regeneration reinforcing agent is sprayed and fine sand is spread. It rotates in the opposite direction of travel, evenly dispersing the fine sand and regeneration reinforcing agent into the road surface and squeezing them into the road structure and micro-cracks.

2. The method for constructing a penetrating regenerative roller seal coat according to claim 1, characterized in that, The movable slide rail in the roller brush device includes: a guide rail connected to the lifting assembly A, a slider slidably connected to the guide rail, and a steel support connected to the slider. The other end of the steel support is connected to the lifting assembly B. The sealing cover includes: a main cover and auxiliary covers A and B at both ends of the main cover. The main cover is fixedly installed in the middle position of the guide rail, and the tops of the auxiliary covers A and B are connected to the lifting assembly B. It also includes the following steps: Adjust the steel support structure by sliding the slider, and simultaneously slide the secondary guards A and B to adapt them to the adjusted length of the brush roller.

3. The method for constructing a penetrating regenerative roller seal coat according to claim 2, characterized in that, The lifting assembly B in the roller brush device includes: an outer tube B connected to the steel structure support, with a bearing installed inside the outer tube B; an inner tube B sleeved inside the outer tube B, connected to the auxiliary protective cover, with a screw seat installed inside the inner tube B; one end of a screw rod is mounted on the bearing inside the outer tube B, and the other end is sleeved on the screw seat inside the inner tube B, so as to adjust the vertical displacement of the inner tube B relative to the outer tube B by rotating the screw rod.

4. The method for constructing a penetrating regenerative roller seal coat according to claim 3, characterized in that, It also includes the following steps: Adjust the hydraulic motor to control the roller brush to rotate in the opposite direction of the travel direction, and control the rotation speed of the roller brush to be ≥200r / min, and the linear speed to be greater than the travel speed.

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