A method of repairing asphalt pavement

Abstract

The application discloses a kind of asphalt pavement repair methods, comprising the following steps: S1, to be repaired road surface is handled with grooving, and to be repaired groove after being handled with grooving is handled with cleaning groove;S2, prefabricate the repair block identical with the shape of to be repaired groove, and to repair block is handled with first compaction;S3, the repair block formed by prefabrication is placed into to be repaired groove;S4, to repair block in to be repaired groove is handled with secondary compaction;The asphalt pavement repair method proposed in the application, while being handled with grooving to be repaired groove to to be repaired road surface, by forming device forms repair block, then repair block is placed in to be repaired groove, and grooving and repair block forming can be synchronized, to improve the efficiency of road repair.

Description

Technical Field

[0001] This invention relates to the field of highway maintenance technology, and in particular to a method for repairing asphalt pavement. Background Technology

[0002] Asphalt pavement is one of the most widely used high-grade pavements in road construction. It refers to various types of pavement constructed by incorporating asphalt into mineral aggregates. Asphalt mixtures, obtained by adding asphalt to mineral aggregates, improve the resistance of paving aggregates to damage from vehicle traffic and natural disasters. Asphalt pavements, after construction, offer advantages such as smoothness, impermeability, and durability.

[0003] However, with the increasing weight of vehicles and the continuous increase in traffic volume, asphalt pavements often develop various forms of cracks and potholes. Combined with rainwater intrusion and heavy vehicle loads, this leads to structural damage to the asphalt pavement. Therefore, in order to extend the service life of asphalt pavements, it is necessary to repair them when cracks and potholes appear.

[0004] Repairing a road surface requires grooving, cleaning out impurities, and then pouring asphalt into the repair area. This process is carried out step by step, resulting in low repair efficiency. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes an asphalt pavement repair method.

[0006] The present invention proposes an asphalt pavement repair method, comprising the following steps:

[0007] S1. Groove the road surface to be repaired and clean the grooved surface after grooving.

[0008] S2. Prefabricate a repair block with the same shape as the groove to be repaired, and perform the first compaction treatment on the repair block;

[0009] S3. Place the pre-formed repair block into the groove to be repaired;

[0010] S4. Perform secondary compaction on the repair block located in the groove to be repaired;

[0011] The repair block is obtained by pre-forming using a molding device.

[0012] In step S2, the height of the repair block after the first compaction is greater than the height of the groove to be repaired.

[0013] In step S3, when the repair block is placed into the tank to be repaired, an expansion joint is left between it and the tank wall.

[0014] The width of the expansion joint is equal at any two points.

[0015] The molding device includes a traveling seat, a base plate, and a molding side plate. The traveling seat has a sliding groove that is adapted to slide and insert into the base plate. One end of the sliding groove is open to allow the base plate to move horizontally in and out of the sliding groove. The molding side plate is fixed on the traveling seat and forms a repair block molding space with an open top between it and the base plate.

[0016] Preferably, the height of the molding space is greater than the height of the tank to be repaired.

[0017] Preferably, a guide groove is provided on the side wall of the chute, and a guide part is provided on the bottom plate to slide into the guide groove.

[0018] Preferably, the inner bottom wall of the guide groove is connected to a pressure plate by a vertically arranged first spring, and the bottom wall of the pressure plate has a downwardly extending protrusion, in which a positioning element is slidably inserted.

[0019] Preferably, the inner wall of the positioning element and the corresponding inner wall of the formed side plate are on the same vertical plane, and the width of the positioning element is equal to the width of the expansion joint.

[0020] Preferably, the bottom wall of the positioning element is embedded with ball bearings.

[0021] The asphalt pavement repair method proposed in this invention involves simultaneously creating a grooving groove for the pavement to be repaired and forming a repair block using a forming device. The repair block is then placed inside the grooving groove. Grooving and repair block forming can be performed concurrently, thereby improving the efficiency of pavement repair. In addition, the forming device can be positioned directly above the grooving groove using a positioning component. After the bottom plate in the forming device is removed, the repair block falls directly into the grooving groove, making the repair convenient, simple, and quick. Attached Figure Description

[0022] Figure 1 This is a schematic flowchart of an asphalt pavement repair method proposed in this invention;

[0023] Figure 2 This is a first three-dimensional structural schematic diagram of the molding device proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the second three-dimensional structure of the molding device proposed in this invention;

[0025] Figure 4 This is a front cross-sectional view of the traveling seat in the molding device proposed in this invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the pressure plate in the molding device proposed in this invention. Detailed Implementation

[0027] Reference Figure 1 The present invention proposes an asphalt pavement repair method, comprising the following steps:

[0028] S1. Groove the road surface to be repaired and clean the grooved surface after grooving.

[0029] S2. Prefabricate a repair block with the same shape as the groove to be repaired, and perform the first compaction treatment on the repair block;

[0030] It should be further noted that the height of the repair block after the initial compaction is greater than the height of the groove to be repaired.

[0031] S3. Place the pre-formed repair block into the groove to be repaired;

[0032] It should be further explained that when the repair block is placed into the tank to be repaired, an expansion joint is left between it and the tank wall.

[0033] S4. Perform secondary compaction on the repair block located in the groove to be repaired;

[0034] During the secondary compaction process, the portion of the repair block that protrudes above the groove to be repaired extends into the expansion joint to fill it.

[0035] The repair block is obtained by pre-forming using a molding device.

[0036] In practice, steps S1 and S2 can be performed simultaneously. After the groove to be repaired is formed and cleaned, the repair block is placed into the groove to be repaired to improve repair efficiency.

[0037] In step S3, the width of any two points of the expansion joint is equal.

[0038] Reference Figure 2 , Figure 3 The molding device includes a walking seat 1, a base plate 2, and a molding side plate 3. The walking seat 1 has a sliding groove 11 that is adapted to slide and insert into the base plate 2. One end of the sliding groove 11 is open so that the base plate 2 can move horizontally in and out of the sliding groove 11. The molding side plate 3 is fixed on the walking seat 1 and forms a repair block molding space with an open top between it and the base plate 2.

[0039] After the repair block is formed, the traveling seat 1 is moved above the groove to be repaired, and then the base plate 2 is pulled out, and the repair block falls off.

[0040] The height of the molding space is greater than the height of the tank to be repaired.

[0041] In the above embodiments, if the repair block cannot fall into the repair groove exactly, the staff needs to manually adjust the position of the repair block so that it falls into the repair groove, which is quite troublesome to place the repair block.

[0042] To solve the above problems and allow the repair block to fall directly into the groove to be repaired, please refer to the following: Figure 4 , Figure 5 A guide groove 111 is provided on the side wall of the slide groove 11. The bottom plate 2 has a guide part 21 that is slidably inserted into the guide groove 111. The inner bottom wall of the guide groove 111 is connected to a pressure plate 5 by a vertically arranged first spring 4. The bottom wall of the pressure plate 5 has a downwardly extending protrusion 51. A positioning member 6 is slidably inserted into the protrusion 51.

[0043] In the above embodiment, the positioning member 6 can slide in the groove opened in the protrusion 51, and the top of the positioning member 6 has a limiting part that can abut against the bottom wall of the groove to prevent the positioning member 6 from disengaging from the protrusion 51. When the pressure plate 5 moves upward, the bottom wall of the groove can drive the positioning member 6 to move upward together through the limiting part.

[0044] It should be further explained that there are multiple positioning parts 6, and the multiple positioning parts 6 can be respectively attached to different inner walls of the groove to be repaired. When multiple positioning parts 6 are all inside the groove to be repaired, the traveling seat 1 is restricted by the positioning parts 6 and cannot move further, thereby playing a positioning role.

[0045] The inner wall of the positioning component 6 and the inner wall of the corresponding part of the molded side plate 3 are on the same vertical plane, and the width of the positioning component 6 is equal to the width of the expansion joint.

[0046] To reduce the friction between the positioning component 6 and the ground when the walking seat 1 is moving, ball bearings are embedded in the bottom wall of the positioning component 6.

[0047] The specific process of preforming the repair block by the molding device is as follows: Asphalt raw material is poured into the molding space of the repair block. After the asphalt raw material solidifies, the traveling seat 1 is moved to the top of the groove to be repaired. During this process, the positioning part 6 is against the ground. When multiple positioning parts 6 move to the top of the groove to be repaired, multiple positioning parts 6 extend into the groove to be repaired under the action of gravity, restricting the traveling seat 1 above the groove to be repaired, and the repair block is located directly above the groove to be repaired. At this time, the bottom plate 2 is pulled out from the slide 11, and the repair block falls into the groove to be repaired. After the bottom plate 2 is pulled out from the slide 11, the pressure plate 5 moves upward under the action of the first spring 4. The pressure plate 5 drives the positioning part 6 to move upward to the top of the groove to be repaired. At this time, the traveling seat 1 can be moved away from the top of the groove to be repaired.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for repairing asphalt pavement, characterized in that, Includes the following steps: S1. Groove the road surface to be repaired and clean the grooved surface after grooving. S2. Prefabricate a repair block with the same shape as the groove to be repaired, and perform the first compaction treatment on the repair block. The height of the repair block after the first compaction is greater than the height of the groove to be repaired. S3. Place the pre-formed repair block into the groove to be repaired. When the repair block is placed into the groove to be repaired, an expansion joint is reserved between the repair block and the groove wall of the groove to be repaired, and the width of the expansion joint is equal at any two points. S4. Perform secondary compaction on the repair block located in the groove to be repaired; The repair block is pre-formed by a molding device, which includes a traveling seat (1), a base plate (2), and a molding side plate (3). The traveling seat (1) has a sliding groove (11) that is adapted to slide and insert into the base plate (2). One end of the sliding groove (11) is open to allow the base plate (2) to move horizontally in and out of the sliding groove (11). The molding side plate (3) is fixed on the traveling seat (1) and forms a repair block molding space with an open top between it and the base plate (2). The height of the molding space is greater than the height of the groove to be repaired. A guide groove is provided on the side wall of the sliding groove (11). (111), the base plate (2) has a guide part (21) that slides into the guide groove (111); the inner bottom wall of the guide groove (111) is connected to a pressure plate (5) by a vertically arranged first spring (4), the bottom wall of the pressure plate (5) has a downwardly extending protrusion (51), and a positioning member (6) is slidably inserted into the protrusion (51); the inner side wall of the positioning member (6) and the inner wall of the corresponding part of the molded side plate (3) are on the same vertical plane, the width of the positioning member (6) is equal to the width of the expansion joint; a ball is embedded in the bottom wall of the positioning member (6).

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