Asphalt pavement repairing structure

Abstract

The utility model relates to the technical field of road engineering, and discloses an asphalt pavement repairing structure which comprises a repairing shell, the inner bottom wall of the repairing shell is fixedly connected with a repairing base body layer, the top of the repairing base body layer is fixedly connected with a filler plate, the top wall of the filler plate is provided with a plurality of filler holes, and the filler holes are communicated with the repairing base body layer. A frame is fixedly connected to the top of the filler plate, a plurality of reinforcing ribs are fixedly connected to the front side of the inner wall of the frame, a plurality of high-strength grid plates are fixedly connected to the left side of the inner wall of the frame, a silicone sealing layer is fixedly connected to the top wall of the frame, and a fixing frame is fixedly connected to the top of the silicone sealing layer. According to the utility model, through the connection of the plurality of reinforcing ribs and the high-strength grid plates, the use strength of the pavement is improved, so that under the filling of the silicone sealing layer and the modified asphalt filler, the sealing effect can be effectively improved, the condition that the pavement cracks in a low-temperature environment is reduced, and the problem that the performance of the pavement is still reduced is avoided.

Description

Technical Field

[0001] This utility model relates to the field of road engineering technology, and in particular to an asphalt pavement repair structure. Background Technology

[0002] As a crucial component of transportation infrastructure, urban roads directly impact driving safety and comfort due to their pavement quality. Asphalt pavements are widely used due to their ease of construction and comfortable driving experience. However, during use, the need for pipeline laying and underground facility maintenance necessitates partial road surface demolition. Currently, the main method for road repair after such construction is traditional backfilling and compaction. However, due to the limitations of the work surface boundaries, the repair material is difficult to fully compact, resulting in a significant strength difference between the repaired area and the original pavement. With repeated traffic loads, the repaired area may experience subsidence and cracking, which not only shortens the pavement's service life but also increases subsequent maintenance costs. In recent years, scholars both domestically and internationally have proposed various solutions to this problem, such as using high-performance repair materials and improving compaction processes. However, none of these solutions have fundamentally solved the problem of coordinated stress distribution between the repaired area and the original pavement.

[0003] A search revealed Chinese Patent Publication No. CN219637603U, which discloses an asphalt pavement repair structure. This structure includes trenches carved into the original road structure. The original pavement structure comprises, from top to bottom, an original pavement surface layer, an original pavement base layer, and an original roadbed. The trenches include a first trench section within the original roadbed, a second trench section within the original pavement surface layer, and a third trench section within the original pavement base layer. Pipes are laid within the first trench section. A self-compacting recycled concrete base layer is located within the second trench section. The third trench section comprises, from bottom to top, a medium-grained recycled asphalt concrete surface layer and a fine-grained recycled asphalt concrete surface layer, and a self-compacting recycled concrete base layer. A grid is installed between the medium-grained recycled asphalt concrete surface layer and the outer periphery of the grid is fixedly connected to the original road base. Using this asphalt pavement repair structure, the repair boundary is smooth and coordinated, and the compaction is dense. After the road is opened to traffic, the road surface is not prone to subsidence. The joint between the repaired road surface and the existing road surface is not easily damaged. The structure is stable and improves the service life of the road and driving comfort. However, in actual use, although the structure improves the strength and stability of the structure by using a grid, its resistance to fatigue, wear and aging is insufficient after long-term use, and it will be damaged again. Under the influence of temperature changes and flame factors, the road will still experience performance degradation. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an asphalt pavement repair structure, which aims to improve the existing technology's insufficient resistance to fatigue, wear, and aging under long-term use, preventing further damage and performance degradation of the road under the influence of temperature changes and flames.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an asphalt pavement repair structure, comprising a repair shell, a repair substrate layer fixedly connected to the inner bottom wall of the repair shell, a filler plate fixedly connected to the top of the repair substrate layer, a plurality of filler holes opened on the top wall of the filler plate, a frame fixedly connected to the top of the filler plate, a plurality of reinforcing ribs fixedly connected to the front side of the inner wall of the frame, a plurality of high-strength grid plates fixedly connected to the left side of the inner wall of the frame, a silicone sealing layer fixedly connected to the top wall of the frame, a fixing frame fixedly connected to the top of the silicone sealing layer, a plurality of rock wool boards fixedly connected to the top of the fixing frame, a plurality of basalt pads fixedly connected to the top of the rock wool boards, modified asphalt filler fixedly connected to the top of the repair shell, and a plurality of snap-fit ​​mechanisms provided on the right side of the frame.

[0006] The above technical solutions effectively improve the road surface strength by connecting the reinforcing ribs and high-strength grid plates. Combined with the silicone sealing layer, the internal sealing of the road surface is increased. Subsequently, the connection of rock wool board and basalt pad improves the fire resistance and deformation resistance of the road surface. At the same time, the filling of modified asphalt filler can effectively reduce the possibility of cracks appearing in the road surface under low temperature conditions.

[0007] As a further description of the above technical solution:

[0008] The locking mechanism includes multiple locking shells, the left sides of which are fixedly connected to the right side of the frame. Multiple locking blocks are fixedly connected to the left side of the frame. The top wall of each locking block has a locking hole. The left side of the locking block engages with the right side of the locking shell. A positioning rod is provided at the top of the locking shell. Multiple locking rods are fixedly connected to the bottom of the positioning rod. The bottom of the locking rod passes through the top of the locking shell and engages with the locking hole.

[0009] The above technical solution enables the splicing of two structures, allowing for rapid interlocking. As the positioning rod descends, multiple locking rods lock the interlocking shell and interlocking block, improving the flexibility of the repaired structure and accelerating construction efficiency.

[0010] As a further description of the above technical solution:

[0011] Each of the multiple snap-fit ​​shells has a snap-fit ​​groove on its top wall, and the bottom of the positioning rod snaps into the snap-fit ​​groove.

[0012] The above technical solution improves the fixing effect of the positioning rod by creating the locking groove.

[0013] As a further description of the above technical solution:

[0014] Each of the locking rods has a rubber shell fixedly connected to its outer wall, and the external dimensions of the rubber shell match the internal dimensions of the locking hole.

[0015] The above technical solution improves the fixing effect of the locking rod on the locking hole by connecting the rubber shell.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to the top wall of the positioning rod, and a protective sleeve is fixedly connected to the middle of the handle.

[0018] The above technical solution facilitates the movement of the positioning rod while maintaining the grip connection.

[0019] As a further description of the above technical solution:

[0020] The multiple reinforcing ribs and the multiple high-strength grid plates are all fixedly connected to each other and form a rectangular grid structure.

[0021] The above technical solution improves the internal strength of the structure and extends its service life by forming a rectangular grid structure with reinforcing ribs and high-strength gratings.

[0022] As a further description of the above technical solution:

[0023] The top of the fixing frame is fixedly connected to a pressure-resistant layer, and the top of the pressure-resistant layer has multiple arc-shaped grooves.

[0024] The above technical solution improves the compressive strength of the top of the structure by incorporating the compressive layer and the arc-shaped groove.

[0025] As a further description of the above technical solution:

[0026] The multiple packing holes are arranged at equal intervals, and the multiple arc-shaped grooves are symmetrically opened.

[0027] The above technical solution ensures the uniformity of the filler material by opening the filler holes in the lamp.

[0028] As a further description of the above technical solution:

[0029] The modified asphalt filler has multiple wear-resistant layers fixedly connected to its top left and right sides, and the multiple wear-resistant layers are all rectangular in shape.

[0030] The above technical solution enables the wear resistance of the structural surface to be improved through the connection of the wear-resistant layer.

[0031] As a further description of the above technical solution:

[0032] A UV-resistant layer is fixedly connected to the middle of the top wall of the modified asphalt filler, and a UV-resistant agent is disposed inside the UV-resistant layer.

[0033] The above technical solution improves the structure's UV resistance by connecting the UV-resistant layer.

[0034] This utility model has the following beneficial effects:

[0035] 1. In this utility model, the connection of multiple reinforcing ribs and high-strength grid plates can effectively improve the service strength of the road surface. The connection of the silicone sealing layer can effectively improve the internal sealing of the road surface and reduce leakage. Subsequently, the connection of rock wool board and basalt pad improves the fire resistance and deformation resistance of the road surface. At the same time, the filling of modified asphalt filler can effectively reduce the possibility of cracks appearing in the road surface in low-temperature environments, thereby avoiding the problem of performance degradation of the road surface.

[0036] 2. In this utility model, the snap-fit ​​shell and snap-fit ​​block can be engaged to enable the structure to be quickly assembled. As the positioning rod descends, multiple locking rods can pass through the corresponding snap-fit ​​shell and locking hole to lock the snap-fit ​​shell and snap-fit ​​block. This improves the flexibility of the repair structure, increases the snap-fit ​​strength, and speeds up the construction efficiency. Attached Figure Description

[0037] Figure 1 This is a perspective view of an asphalt pavement repair structure proposed in this utility model;

[0038] Figure 2 This is a side view of an asphalt pavement repair structure proposed in this utility model;

[0039] Figure 3 This is a cross-sectional view of the repair shell of an asphalt pavement repair structure proposed in this utility model;

[0040] Figure 4 This is a schematic diagram of the frame of an asphalt pavement repair structure proposed in this utility model;

[0041] Figure 5 This is a schematic diagram of the snap-fit ​​mechanism of an asphalt pavement repair structure proposed in this utility model.

[0042] Legend:

[0043] 1. Repair shell; 2. Snap-fit ​​mechanism; 201. Snap-fit ​​shell; 202. Snap-fit ​​block; 203. Locking hole; 204. Positioning rod; 205. Locking rod; 206. Rubber shell; 207. Handle; 208. Protective sleeve; 209. Snap-fit ​​groove; 3. Repair base layer; 4. Filler plate; 5. Filler hole; 6. Frame; 7. Reinforcing rib; 8. High-strength grid plate; 9. Silicone sealing layer; 10. Fixing bracket; 11. Rock wool board; 12. Basalt pad; 13. Compression layer; 14. Modified asphalt filler; 15. Wear-resistant layer; 16. UV-resistant layer; 17. Arc groove. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of an asphalt pavement repair structure, including a repair shell 1. A repair substrate layer 3 is fixedly connected to the inner bottom wall of the repair shell 1. By fixing the repair shell 1 to the overlapping part of the original pavement, pavement repair splicing can be performed. A filler plate 4 is fixedly connected to the top of the repair substrate layer 3. Multiple filler holes 5 are formed on the top wall of the filler plate 4. The repair substrate layer 3 provides basic repair support, and with the connection of the filler plate 4 and the cooperation of the filler holes 5, the purpose of filler repair can be achieved. The filler consists of modified emulsified asphalt, aggregates, filler, water, and additives. A frame 6 is fixedly connected to the top of the filler plate 4. Multiple reinforcing ribs 7 are fixedly connected to the front side of the inner wall of the frame 6, and the left side of the inner wall of the frame 6 is fixedly connected to... Multiple high-strength grid plates 8 are connected to the reinforcing ribs 7, which can improve the internal strength of the structure. The top wall of the frame 6 is fixedly connected to a silicone sealing layer 9. The top of the silicone sealing layer 9 is fixedly connected to a fixing frame 10. The top of the fixing frame 10 is fixedly connected to multiple rock wool boards 11. The connection between the silicone sealing layer 9 and the rock wool boards 11 can increase the weather resistance of the structure and improve the weather resistance effect. The top of the rock wool boards 11 is fixedly connected to multiple basalt pads 12. The top of the repair shell 1 is fixedly connected to a modified asphalt filler 14. The modified asphalt filler 14 can reduce the possibility of cracks appearing on the road surface in low temperature environment. At the same time, its anti-aging performance and adhesion are also improved. Multiple snap-fit ​​mechanisms 2 are provided on the right side of the frame 6.

[0046] Specifically, the inner bottom wall of the repair shell 1 is fixedly connected to the repair substrate layer 3. By connecting the repair shell 1 to the original pavement overlap area using a specific fixing method, the pavement repair splicing is achieved. The repair substrate layer 3 provides basic repair support for the entire repair structure. The top of the repair shell 1 is fixedly connected to the filler plate 4. The top wall of the filler plate 4 has multiple filler holes 5. These filler holes 5 work in conjunction with the repair substrate layer 3, using filler composed of modified emulsified asphalt, aggregates, filler, water, and additives to achieve the purpose of filler repair. The top of the filler plate 4 is fixedly connected to the frame 6. The front side of the inner wall of the frame 6 is provided with multiple reinforcing ribs 7, and the left side of the inner wall is fixedly connected to multiple high-strength... The strength grid plate 8, the reinforcing rib 7, and the high-strength grid plate 8 work together to enhance the internal strength of the structure. The top wall of the frame 6 is fixedly connected to the silicone sealing layer 9. The top of the silicone sealing layer 9 is connected to the fixing frame 10. The top of the fixing frame 10 is equipped with multiple rock wool boards 11. The silicone sealing layer 9 and the rock wool boards 11 work together to increase the weather resistance of the structure and improve the weather resistance effect. The top of the rock wool boards 11 is fixedly connected to multiple basalt pads 12. The top of the repair shell 1 is fixedly connected to the modified asphalt filler 14. The modified asphalt filler 14 has good performance and can reduce the probability of cracks appearing on the road surface in low temperature environment. At the same time, it has good anti-aging performance and adhesion.

[0047] Reference Figure 1 , Figure 2 and Figure 5 The snap-fit ​​mechanism 2 includes multiple snap-fit ​​shells 201. The left sides of the multiple snap-fit ​​shells 201 are fixedly connected to the right side of the frame 6. Multiple snap-fit ​​blocks 202 are fixedly connected to the left side of the frame 6. The top wall of the snap-fit ​​block 202 is provided with a locking hole 203. The snap-fit ​​block 202 can be locked by cooperating with the locking rod 205 through the locking hole 203. The left side of the snap-fit ​​block 202 engages with the right side of the snap-fit ​​shell 201. The engagement of the snap-fit ​​block 202 with the snap-fit ​​shell 201 completes the initial connection of the repair structure. The top of the snap-fit ​​shell 201 is provided with a positioning rod 204. The bottom of the positioning rod 204 is fixedly connected with multiple locking rods 205. Then, under the locking of the multiple locking rods 205, the connection and assembly of the repair structure is completed. The bottom of the locking rod 205 penetrates the top of the snap-fit ​​shell 201 and engages with the locking hole 203, thereby improving the flexibility and efficiency of construction and use.

[0048] Specifically, the snap-fit ​​mechanism 2 consists of multiple snap-fit ​​shells 201. The left sides of these snap-fit ​​shells 201 are fixedly connected to the right side of the frame 6, while the left side of the frame 6 is fixedly connected to multiple snap-fit ​​blocks 202. The top wall of the snap-fit ​​block 202 is provided with a locking hole 203, which is used to cooperate with the locking rod 205 to realize the locking operation of the snap-fit ​​block 202. The left side of the snap-fit ​​block 202 and the right side of the snap-fit ​​shell 201 are interlocked. The initial connection of the repair structure is completed through this interlocking method. The top of the snap-fit ​​shell 201 is provided with a positioning rod 204. The bottom of the positioning rod 204 is fixedly connected to multiple locking rods 205. Under the action of multiple locking rods 205, the connection and assembly of the repair structure can be realized. The bottom of the locking rod 205 penetrates the top of the snap-fit ​​shell 201 and engages with the locking hole 203 on the top wall of the snap-fit ​​block 202. This design allows the repair structure to be quickly assembled and disassembled during construction and use, improving the flexibility of construction and use, and thus improving the overall efficiency.

[0049] Reference Figure 5 The top walls of multiple snap-fit ​​shells 201 are provided with snap-fit ​​grooves 209, and the bottom of the positioning rod 204 snaps into the snap-fit ​​grooves 209; the outer walls of multiple locking rods 205 are fixedly connected with rubber shells 206, and the external dimensions of the rubber shells 206 match the internal dimensions of the locking holes 203.

[0050] Specifically, the bottom of the positioning rod 204 engages with the engaging groove 209, which improves the stability of the positioning rod 204 when locked, and the rubber shell 206 improves the locking effect of the locking rod 205 and the locking hole 203 when locked.

[0051] Reference Figure 1 , Figure 4 and Figure 5 Multiple reinforcing ribs 7 and multiple high-strength grid plates 8 are fixedly connected to each other and form a rectangular grid structure; the top of the fixing frame 10 is fixedly connected to a pressure-resistant layer 13, and multiple arc-shaped grooves 17 are opened on the top of the pressure-resistant layer 13; multiple filling holes 5 are arranged at equal intervals, and multiple arc-shaped grooves 17 are symmetrically opened; the top wall of the positioning rod 204 is fixedly connected to a handle 207, and the middle of the handle 207 is fixedly connected to a protective sleeve 208;

[0052] Specifically, the rectangular grid structure formed by the reinforcing ribs 7 and the high-strength grid plate 8 improves the internal strength of the structure and thus increases its service life. The pressure-resistant layer 13 and multiple arc grooves 17 increase the pressure resistance of the top of the structure. The handle 207 and the protective sleeve 208 facilitate the use and movement of the positioning rod 204.

[0053] Reference Figure 1 and Figure 2Multiple wear-resistant layers 15 are fixedly connected to the top left and right sides of the modified asphalt filler 14, and the shape of the multiple wear-resistant layers 15 is rectangular; an anti-ultraviolet layer 16 is fixedly connected to the middle of the top wall of the modified asphalt filler 14, and an anti-ultraviolet agent is provided inside the anti-ultraviolet layer 16.

[0054] Specifically, the wear-resistant layer 15 improves the wear resistance of the top of the structure, while the UV-resistant layer 16 reduces UV damage.

[0055] Working principle: When this asphalt pavement repair structure is working, the repair shell 1 is first fixedly connected to the original pavement overlap area to achieve pavement repair splicing. The repair base layer 3 provides basic support for the entire repair structure. On this basis, the filler plate 4, through multiple filler holes 5 opened on its top wall, together with the filler composed of modified emulsified asphalt, aggregate, filler, water and additives, completes the filling and repair work of the pavement interior. Multiple reinforcing ribs 7 and high-strength grid plates 8 inside the frame 6 are connected to each other to enhance the internal strength of the structure, thereby improving the overall service strength of the pavement. The silicone sealing layer 9 on the top wall of the frame 6 can effectively improve the internal sealing of the pavement and reduce the occurrence of leakage. Subsequently, the fixing frame 10 above the silicone sealing layer 9 connects multiple rock wool boards 11, combined with the basalt pad 12 on the top of the rock wool board 11, to improve the fire resistance and deformation resistance of the pavement, thereby increasing the weather resistance of the structure. The modified asphalt filler 14 on the top of the repair shell 1, using its own characteristics, reduces the possibility of cracks appearing in the pavement in low temperature environment, avoids pavement performance degradation, and ultimately achieves effective repair and performance improvement of the asphalt pavement.

[0056] Furthermore, when the splicing of the repair structure begins, the alignment and engagement of the snap-fit ​​shell 201 and the snap-fit ​​block 202 enables the two repair structures to be initially spliced ​​together. This causes the positioning rod 204 to move downward, allowing multiple locking rods 205 to pass through the locking holes 203 at the top of the corresponding snap-fit ​​shell 201 and snap-fit ​​block 202, thus locking the snap-fit ​​shell 201 and snap-fit ​​block 202. This improves the flexibility of the repair structure during use, enhances the convenience of construction, and accelerates construction efficiency.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An asphalt pavement repair structure, comprising a repair shell (1), characterized in that: The repair shell (1) is fixedly connected to the inner bottom wall of the repair substrate layer (3), and the top of the repair substrate layer (3) is fixedly connected to the filler plate (4). The top wall of the filler plate (4) is provided with multiple filler holes (5). The top of the filler plate (4) is fixedly connected to the frame (6). The front side of the inner wall of the frame (6) is fixedly connected to multiple reinforcing ribs (7). The left side of the inner wall of the frame (6) is fixedly connected to multiple high-strength grid plates (8). The top wall of the frame (6) is fixedly connected to a silicone sealing layer (9). The top of the silicone sealing layer (9) is fixedly connected to a fixing frame (10). The top of the fixing frame (10) is fixedly connected to multiple rock wool boards (11). The top of the rock wool boards (11) is fixedly connected to multiple basalt pads (12). The top of the repair shell (1) is fixedly connected to a modified asphalt filler (14). The right side of the frame (6) is provided with multiple snap-fit ​​mechanisms (2).

2. The asphalt pavement repair structure according to claim 1, characterized in that: The snap-fit ​​mechanism (2) includes multiple snap-fit ​​shells (201), the left sides of the multiple snap-fit ​​shells (201) are respectively fixedly connected to the right side of the frame (6), the left side of the frame (6) is fixedly connected to multiple snap-fit ​​blocks (202), the top wall of the snap-fit ​​block (202) is provided with a locking hole (203), the left side of the snap-fit ​​block (202) is engaged with the right side of the snap-fit ​​shell (201), the top of the snap-fit ​​shell (201) is provided with a positioning rod (204), the bottom of the positioning rod (204) is fixedly connected to multiple locking rods (205), the bottom of the locking rod (205) penetrates the top of the snap-fit ​​shell (201) and engages with the locking hole (203).

3. The asphalt pavement repair structure according to claim 2, characterized in that: Each of the multiple snap-fit ​​shells (201) has a snap-fit ​​groove (209) on its top wall, and the bottom of the positioning rod (204) snaps into the snap-fit ​​groove (209).

4. The asphalt pavement repair structure according to claim 2, characterized in that: A rubber shell (206) is fixedly connected to the outer wall of each of the locking rods (205), and the external dimensions of the rubber shell (206) match the internal dimensions of the locking hole (203).

5. The asphalt pavement repair structure according to claim 2, characterized in that: A handle (207) is fixedly connected to the top wall of the positioning rod (204), and a protective sleeve (208) is fixedly connected to the middle part of the handle (207).

6. The asphalt pavement repair structure according to claim 1, characterized in that: The multiple reinforcing ribs (7) and the multiple high-strength grid plates (8) are all fixedly connected to each other and form a rectangular grid structure.

7. The asphalt pavement repair structure according to claim 1, characterized in that: The top of the fixed frame (10) is fixedly connected to a pressure-resistant layer (13), and the top of the pressure-resistant layer (13) is provided with multiple arc-shaped grooves (17).

8. The asphalt pavement repair structure according to claim 7, characterized in that: The multiple packing holes (5) are arranged at equal intervals, and the multiple arc grooves (17) are symmetrically opened.

9. The asphalt pavement repair structure according to claim 1, characterized in that: The modified asphalt filler (14) has multiple wear-resistant layers (15) fixedly connected to the top left and right sides, and the multiple wear-resistant layers (15) are all rectangular in shape.

10. The asphalt pavement repair structure according to claim 1, characterized in that: The modified asphalt filler (14) has an anti-ultraviolet layer (16) fixedly connected to the middle of its top wall, and the anti-ultraviolet layer (16) contains an anti-ultraviolet agent.

Images