A heavy-duty pavement rapid repair plate with anchoring structure

Abstract

This utility model discloses a rapid repair panel for heavy-duty pavement with an anchoring structure, comprising: a repair panel body and an anchoring assembly. The anchoring assembly includes an anchor rod and an anchor head. The anchor rod is installed on the repair panel body, with one end protruding from the repair panel body. The anchor head is installed on the anchor rod at one end protruding from the repair panel body, and the anchor head extends into the pavement surface to anchor the repair panel body to the pavement surface. This utility model enhances the connection strength between the repair panel and the pavement surface through the anchoring structure, prevents water infiltration through the sealing and seepage-proof layer, and facilitates rapid assembly through the connection structure, making it suitable for rapid repair of heavy-duty pavement.

Description

Technical Field

[0001] This utility model relates to the field of road engineering, and in particular to a rapid repair plate for heavy-duty pavement with an anchoring structure. Background Technology

[0002] With the rapid development of the transportation industry, the application of heavy-duty pavements is constantly expanding, and their use in ports, airports, logistics parks, and other places is becoming increasingly widespread. However, due to the long-term heavy loads, pavements often develop defects such as cracks, potholes, and subsidence. These defects not only affect the performance of the road but may also endanger traffic safety. Therefore, timely and effective repair of heavy-duty pavements is particularly important.

[0003] Currently, the main repair methods for heavy-duty pavements include traditional methods such as on-site concrete pouring and asphalt mixture repair. For example, Chinese patent CN212316587U discloses a rapid repair structure for airport asphalt pavement defects in extremely cold freeze-thaw regions. This structure includes an asphalt pavement surface layer and a base layer, with a repair structure receiving groove in the asphalt pavement. The groove contains a cement concrete repair structure and a steel mesh, and a porous material layer is provided between the sidewall of the repair structure receiving groove and the cement concrete repair structure [CN212316587U]. Although this repair structure can adapt to the construction conditions in extremely cold regions, it still requires a long curing time and has limited bonding strength with the original pavement.

[0004] However, existing heavy-duty pavement repair technologies still have the following problems: First, the repair cycle is long. On-site concrete pouring repairs require a long curing period, usually several days or even more than a week, to reach the design strength, which seriously affects normal traffic flow. Second, the repaired structure has poor stability and lacks an effective anchoring structure, making it impossible to ensure a firm connection between the repair plate and the pavement. Finally, due to the above problems, the service life of the repaired structure is generally short, requiring frequent secondary repairs, which increases maintenance costs and traffic interruption time, and needs to be improved. Utility Model Content

[0005] One of the technical problems to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide a heavy-duty pavement rapid repair plate with an anchoring structure, so as to achieve the technical effects of rapid repair, high bonding strength with the original pavement, and enhanced load-bearing capacity.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows: a heavy-duty pavement rapid repair plate with an anchoring structure, comprising: a repair plate body and an anchoring assembly. The anchoring assembly includes an anchor rod and an anchor head. The anchor rod is installed on the repair plate body, with one end protruding from the repair plate body. The anchor head is installed on the anchor rod, protruding from one end of the repair plate body, and extends into the pavement surface to anchor the repair plate body to the pavement surface. The repair plate body, through the end of the anchoring assembly, extends into the original pavement surface and fits tightly against it, effectively preventing displacement and loosening of the repair plate body and ensuring the stability of the overall structure.

[0007] Preferably, the anchor head is inverted conical, and the diameter of the bottom surface of the anchor head is larger than the diameter of the anchor rod. This inverted conical design, with a bottom surface larger than the diameter of the anchor rod, effectively enhances the gripping force with the original pavement base layer.

[0008] Preferably, the anchor head is provided with reinforcing ribs, which are spiral-shaped. The reinforcing ribs can increase the interlocking force between the anchor head and the original pavement base soil or concrete, thereby improving the anchoring effect.

[0009] Preferably, the repair panel body is a precast reinforced concrete component. During the precasting of the repair panel body, the anchor rod is pre-embedded in the concrete and fixedly connected to the internal steel mesh. The portion of the anchor rod inside the repair panel body is fixed to the steel mesh by welding, ensuring the reliability of the connection between the anchor rod and the repair panel body, and further improving the stability of the repair panel body installed on the pavement surface.

[0010] Preferably, the steel mesh consists of two layers, which are evenly distributed within the repair panel. This two-layer design enhances the structural strength of the repair panel, and the anchor rods are fixedly connected to both layers, further improving the reliability of the connection and thus strengthening the overall strength and crack resistance.

[0011] Preferably, there are multiple anchoring components, which are evenly distributed on the repair plate body. The multiple and evenly distributed anchoring components ensure uniform stress and structural stability when the repair plate body is installed on the original pavement surface.

[0012] Preferably, one side and / or one end of opposite sides and / or ends of the repair plate body is provided with a connecting protrusion, and the other side and / or one end is provided with a connecting groove. The connecting groove is used to engage with the connecting protrusion on an adjacent repair plate body. The design of the connecting protrusion and the connecting groove enables reliable connection between multiple repair plate bodies, expanding the applicable scenarios of this utility model. It effectively improves the overall stability after multiple repair plate bodies are spliced ​​together.

[0013] Preferably, the connecting protrusion and the connecting groove are trapezoidal structures. The trapezoidal structure design improves the overall stability after multiple repair plate bodies are spliced ​​together.

[0014] Preferably, the bottom of the repair slab body is provided with a sealing and seepage-proof layer, and the end of the anchor rod connected to the anchor head passes through the sealing and seepage-proof layer. The sealing and seepage-proof layer can closely adhere to the surface of the original pavement, forming a sealing barrier, effectively preventing rainwater, oil, and other liquids from seeping into the space between the repair slab body and the original pavement.

[0015] Preferably, sealant is injected into the joints formed by splicing multiple repair panel bodies. The sealant has good adhesion to the surface of the repair panel body, which can effectively prevent rainwater, debris, etc. from seeping into the base layer through the joints.

[0016] Compared with related technologies, this utility model has the following advantages:

[0017] 1. Significantly reduced repair time: The prefabricated repair panel structure requires only simple cleaning, installation and fixing on site. Installing a repair panel takes only 1-2 hours, and the repair work of the entire damaged area can be completed on the same day, which can quickly restore the traffic flow of heavy-duty pavement.

[0018] 2. Improved bonding strength with the original pavement: The anchoring components can penetrate deep into the original pavement. The inverted conical structure of the anchor head and the reinforcing ribs on the surface form a firm mechanical bond with the original pavement base layer, effectively resisting shear and tensile forces under heavy loads. The bonding strength between the repair plate and the original pavement is 3-5 times that of the pavement without anchoring components.

[0019] 3. Enhanced load-bearing capacity and durability: The repair slab body incorporates a double-layer steel mesh, enhancing the slab's strength and fatigue resistance to withstand long-term heavy loads. The sealing and seepage-proof layer effectively prevents rainwater and debris from penetrating the repair interface, extending the service life of the repair structure. Compared to asphalt mixture repairs, its service life can be increased by 5-8 times; compared to ordinary precast slab repairs, its service life can be increased by 2-3 times.

[0020] 4. Reduced maintenance costs: The repair board has a long service life and good stability, which reduces the frequency of repairs and lowers maintenance costs. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention.

[0022] Figure 2 This is a perspective view of the present invention from another angle.

[0023] Figure 3 This is a diagram of the internal structure of this utility model.

[0024] Figure 4 yes Figure 1 Enlarged view of point A.

[0025] Figure 5 This is a structural diagram of the anchoring component of this utility model.

[0026] Attached Figures: 1. Repair plate body; 2. Anchor rod; 3. Anchor head; 31. Reinforcing rib; 4. Steel mesh; 5. Connecting protrusion; 6. Connecting groove; 7. Sealing and seepage prevention layer. Detailed Implementation

[0027] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1-5 As shown, a rapid repair panel for heavy-duty pavement with an anchoring structure is provided, comprising: a repair panel body 1 and an anchoring assembly. The repair panel body 1 is a rectangular panel structure. The regular rectangular panel structure facilitates standardized prefabrication in the factory and on-site installation and assembly, expanding the applicability of the repair panel body 1. High-strength energy-absorbing and crack-controlling concrete is used to enhance the overall strength and crack resistance of the rapid repair panel. The length and width of the repair panel body 1 can be designed according to common heavy-duty pavement damage sizes, generally 2-5m, with a thickness of 10-20cm. This embodiment uses a repair panel body with a length of 4m, a width of 2m, and a thickness of 20cm. A steel mesh 4 is installed inside the repair panel body 1. The steel mesh 4 has two layers. In this embodiment, the steel mesh 4 is made of HRB400 grade threaded steel with a diameter of 8-12mm and a spacing of 10-15cm, evenly distributed inside the repair panel body 1. Specifically, the distance between the upper layer of reinforcing mesh and the upper surface of the repair board is 4cm, the distance between the lower layer of reinforcing mesh and the lower surface of the repair board is 4cm, and the spacing between the two layers of reinforcing mesh is 12cm. The reinforcing mesh 4 is evenly distributed inside the repair board body 1, further enhancing the overall strength and crack resistance of the repair board body 1, preventing breakage or deformation under heavy loads. The two layers of reinforcing mesh 4 give the repair board body 1 higher bending strength and impact resistance, enabling it to withstand greater loads.

[0030] The first end of the anchoring component is welded to the steel mesh of the repair slab body 1, and the second end of the anchoring component passes through the bottom of the repair slab body 1 and the sealing and waterproofing layer 7 and extends into the pavement surface to anchor the repair slab body 1 to the pavement surface. Multiple anchoring components are evenly distributed on the repair slab body 1. This even distribution of anchoring components ensures a more stable connection between the repair slab body 1 and the pavement surface, preventing displacement or lifting of the repair slab under vehicle loads.

[0031] The anchoring assembly includes an anchor rod 2 and an anchor head 3 fixed to the end of the anchor rod 2. The anchor rod 2 is a cylindrical structure with a diameter of 15-25mm (preferably 20mm) and a length of 30-50cm (preferably 30cm). The length of the anchor rod 2 is greater than the thickness of the repair plate body 1. The portion of the anchor rod 2 extending out of the repair plate body 1 penetrates deep into the original pavement base layer. In this embodiment, the length of the anchor rod 2 is selected as 30cm, with at least 10cm penetrating into the pavement. Combined with the anchor head 3, a stable anchoring structure is formed, enhancing the overall pull-out resistance. The anchor rod 2 is connected to the repair plate body 1 by pre-embedding welding. That is, when prefabricating the repair plate body 1, the upper end of the anchor rod 2 is pre-embedded in the concrete and welded and fixed to the internal steel mesh (the anchor rod 2 and the steel mesh can also be fixed by binding) to ensure connection strength. This makes the anchor rod 2 and the repair plate body 1 form an integrated load-bearing system, allowing external loads to be evenly transferred to the pavement base layer through the anchoring assembly.

[0032] The anchor head 3 has an inverted conical structure, with a bottom diameter larger than that of the anchor rod 2. In this embodiment, the bottom diameter of the anchor head 3 is 30mm, and the height of the inverted conical anchor head 3 is 10cm. This height allows the anchor head 3 to form a reasonable taper, which facilitates implantation into the original pavement surface and provides a reliable anchoring effect. The anchor head 3 is fixedly connected to the lower end of the anchor rod 2. The surface of the anchor head 3 is provided with annular reinforcing ribs 9. The reinforcing ribs 9 can increase the interlocking force between the anchor head 7 and the original pavement surface 8 base soil or concrete, thereby improving the anchoring effect.

[0033] The repair plate body 1 has a connecting protrusion 5 on one side and / or one end of opposite sides and / or ends, and a connecting groove 6 on the other side and / or one end. The connecting groove 6 is used to connect with the connecting protrusion 5 on adjacent repair plate bodies. The connecting protrusion 5 can be installed in the connecting groove 6 of adjacent repair plate bodies 1 to splice several repair plate bodies 1. This splicing structure design allows multiple repair plate bodies 1 to be quickly assembled into a larger repair area, adapting to pavement damage of different sizes.

[0034] In this embodiment, the dimensions of the trapezoidal protrusion are: upper base length 10cm, lower base length 15cm, and height 8cm (extending along the width of the plate). The dimensions of the trapezoidal groove are: matching the protrusion, upper base length 10cm, lower base length 15cm, and depth 8cm (extending along the width of the plate). The distance from the upper part of the plate is 6cm between the upper edge of the protrusion and the groove and the upper surface of the repair plate. The distance from the lower part of the plate is 6cm between the lower edge of the protrusion and the groove and the lower surface of the repair plate. The spacing between protrusions and grooves needs to comprehensively consider both structural strength and ease of construction. From a structural strength perspective, the spacing should not be too large; otherwise, under heavy loads, adjacent joints are prone to cracking or even breakage due to uneven stress. From a construction convenience perspective, the spacing should not be too small to avoid difficulties in on-site installation and ensure installation accuracy. A spacing of 50-80cm between adjacent connecting protrusions and adjacent connecting grooves along the length of the plate is suitable. Along the width of the panel, since the panel width is relatively narrow, the spacing can be appropriately reduced to 30-50cm to ensure the integrity of the splicing. This spacing ensures that under heavy load conditions such as aircraft take-off and landing, and heavy truck traffic, adjacent repair panels form a stable whole through the connection of protrusions and grooves, effectively distributing the load. It also allows construction workers to complete the splicing operation quickly and accurately on site, improving repair efficiency.

[0035] The connecting protrusion 5 and the connecting groove 6 are trapezoidal in structure. This trapezoidal design allows the connecting protrusion 5 to form a tight wedge-shaped lock when inserted into the connecting groove 6, preventing relative displacement between adjacent repair plates and ensuring overall flatness and stability after splicing. The joint formed by splicing the two repair plate bodies 1 is sealed with polyurethane sealant. Polyurethane sealant has excellent elasticity and adhesion properties, adapting to minor deformations of the repair plate under heavy loads. It also has good adhesion to high-strength, energy-absorbing, crack-controlling concrete surfaces, effectively preventing rainwater and debris from seeping into the base layer through the joint. Its strong weather resistance withstands the effects of high and low temperatures, ultraviolet radiation, and other environmental factors. It is not prone to aging and cracking with long-term use, matching the durability of the repair plates and ensuring long-term stable sealing of the joint.

[0036] A sealing and seepage-proof layer 7 is provided at the bottom edge of the repair slab body 1. This layer 7 is a sheet-like structure made of highly elastic, aging-resistant rubber material, with a thickness of 3-5mm. The sealing and seepage-proof layer 7 is adhered to the bottom edge of the repair slab body 1 and bonded to it with a special adhesive. This effectively prevents moisture from seeping into the gap between the repair slab body 1 and the pavement surface, avoiding softening of the pavement base layer or loosening of the repair slab due to moisture intrusion. The sealing and seepage-proof layer 7 is designed with a flexible waterproof material, offering good adaptability and the ability to fill tiny gaps in uneven areas of the pavement surface. The anchor head 3 is fixedly connected to the second end of the anchor rod 2 and passes through the repair slab body 1 and the sealing and seepage-proof layer 7, extending deep into the pavement surface. The joint where the anchor rod 2 passes through the sealing and seepage-proof layer 7 is sealed with water-swellable sealant, forming a closed structure.

[0037] In practical use, the pavement area to be repaired is first cleaned to ensure the surface is free of debris. Then, the repair plate body 1 with anchoring components is placed at the repair location, allowing the anchor head 3 to penetrate the sealing and waterproofing layer 7 and extend into the pavement. The reinforcing ribs 31 on the anchor head 3 increase the contact area with the pavement, improving anchoring strength. When repairing a large area of ​​the pavement, multiple repair plate bodies 1 can be spliced ​​together using connecting protrusions 5 and connecting grooves 6 to form a single, integrated repair area. The two layers of steel mesh 4 within the repair plate body 1 work in conjunction with the anchoring components to ensure the repair plate can withstand repeated pressure from heavy vehicles without deformation or damage. The sealing and waterproofing layer 7 prevents moisture from seeping between the repair plate and the pavement, extending the durability of the repair effect.

[0038] This type of heavy-duty pavement rapid repair plate with anchoring structure features convenient installation, firm connection, and strong load-bearing capacity, significantly improving the efficiency and quality of road repair and extending the service life of the repaired area. The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rapid repair slab for heavy-duty pavement with an anchoring structure, characterized in that, include: The repair panel body and the anchoring assembly include an anchor rod and an anchor head. The anchor rod is installed on the repair panel body and one end of the anchor rod protrudes from the repair panel body. The anchor head is installed on the anchor rod and protrudes from one end of the repair panel body. The anchor head extends into the pavement surface and is used to anchor the repair panel body to the pavement surface.

2. The heavy-duty pavement rapid repair plate with anchoring structure according to claim 1, characterized in that, The anchor head is an inverted cone shape, and the diameter of the bottom surface of the anchor head is larger than the diameter of the anchor rod.

3. A rapid repair slab for heavy-duty pavement with an anchoring structure according to any one of claims 1 or 2, characterized in that, The anchor head is provided with reinforcing ribs, which are spiral in shape.

4. The heavy-duty pavement rapid repair plate with anchoring structure according to claim 1, characterized in that, The repair panel body is a precast reinforced concrete component. During the precasting of the repair panel body, the anchor rod is pre-embedded in the concrete and fixedly connected to the internal steel mesh.

5. A rapid repair slab for heavy-duty pavement with an anchoring structure according to claim 4, characterized in that, The steel mesh consists of two layers, which are evenly distributed within the repair panel.

6. A rapid repair slab for heavy-duty pavement with an anchoring structure according to claim 1, characterized in that, The number of anchoring components is multiple, and the multiple anchoring components are evenly distributed on the repair plate body.

7. A rapid repair slab for heavy-duty pavement with an anchoring structure according to claim 1, characterized in that, The repair plate body has a connecting protrusion on one side and / or one end of opposite sides and / or ends, and a connecting groove on the other side and / or one end. The connecting groove is used to cooperate with the connecting protrusion on the adjacent repair plate body.

8. A rapid repair slab for heavy-duty pavement with an anchoring structure according to claim 7, characterized in that, The connecting protrusion and the connecting groove are trapezoidal structures.

9. A rapid repair slab for heavy-duty pavement with an anchoring structure according to claim 1, characterized in that, The bottom of the repair plate body is provided with a sealing and seepage-proof layer, and the end of the anchor rod connected to the anchor head passes through the sealing and seepage-proof layer.

10. A rapid repair slab for heavy-duty pavement with an anchoring structure according to claim 1, characterized in that, Multiple repair panels are spliced ​​together to form a seam, and the seam is filled with sealant.

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