A semi-flexible pavement grouting construction edge sealing device

Abstract

This application relates to a semi-flexible pavement grouting construction edge sealing device, including a base plate. The base plate has a plurality of fixing ears evenly distributed along its length, and the fixing ears are perpendicular to the base plate. A fixing hole is provided at the end of each fixing ear away from its connection to the base plate, and a ground nail is inserted into the fixing hole. An elastic abutment plate is movably connected to the base plate. A plurality of adjusting components are evenly distributed along the length of the base plate, and the adjusting components are detachably connected to the elastic abutment plate. The adjusting components are used to adjust whether the elastic abutment plate is pressed against or away from the side of the roadbed. This application facilitates edge sealing of the roadbed during semi-flexible pavement grouting construction, thereby reducing the leakage of grouting material.

Description

Technical Field

[0001] This application relates to the field of road construction, and in particular to a semi-flexible pavement grouting construction sealing device. Background Technology

[0002] Semi-flexible pavement is a new type of pavement structure that combines the rigidity of asphalt pavement and cement concrete pavement. In recent years, it has been widely used in heavy traffic sections. During its construction, cement-based grouting materials need to be injected into porous asphalt mixtures to form a rigid skeleton structure.

[0003] In actual construction, the methods for sealing the roadbed formed by semi-flexible pavement construction typically include:

[0004] 1. Manual edge sealing: Construction workers use trowels or scrapers to seal the edges of the asphalt mixture in the grouting area.

[0005] Compact the material to form a temporary retaining edge. This method is simple to operate, but the sealing effect is inconsistent and depends on the worker's experience.

[0006] b. Simple baffle: A wooden or metal plate is inserted into the edge of the grouting area as a temporary baffle; this method has slightly better sealing performance than manual sealing, but the baffle is prone to deformation, takes a long time to install, and is difficult to adapt to different road surface height changes;

[0007] c. Tape sealing: Apply waterproof tape to the edge of the grouting area; this method is low in cost, but the tape adhesion is greatly affected by the cleanliness of the road surface and cannot withstand the grouting pressure, making it easy to fall off.

[0008] However, the above-mentioned roadbed sealing methods have the following problems: insufficient sealing, low installation efficiency, poor adaptability, and low reuse rate; manual sealing and tape sealing are difficult to guarantee long-term sealing effect; and simple baffles have defects such as complicated installation and inflexible height adjustment. These defects lead to a high leakage rate of grouting material (about 15%-20%), which not only wastes materials but also affects the final strength and smoothness of the road surface, leaving room for improvement. Utility Model Content

[0009] In order to facilitate the sealing of the roadbed during the semi-flexible roadside grouting construction process and reduce the leakage of grouting materials, this application provides a semi-flexible road grouting construction sealing device.

[0010] The semi-flexible pavement grouting construction edge sealing device provided in this application adopts the following technical solution:

[0011] A semi-flexible pavement grouting construction edge sealing device includes a base plate. The base plate has a plurality of fixing ears evenly distributed along its length. The fixing ears are perpendicular to the base plate. A fixing hole is opened at the end of the fixing ear away from the connection with the base plate. A ground nail is inserted into the fixing hole. An elastic abutment plate is movably connected to the base plate. A plurality of adjustment components are evenly distributed along the length of the base plate. The adjustment components are detachably connected to the elastic abutment plate. The adjustment components are used to adjust the elastic abutment plate to press against or move away from the side of the roadbed.

[0012] By adopting the above technical solution, since ground nails are inserted into the fixing holes, during use, the ground nails are first driven into the roadbed. Because the fixing ears and the base plate are in a fixed connection state, a stable connection between the base plate and the roadbed is achieved. By adjusting the adjustment components, the elastic clamping plate can be made to fit against the side of the roadbed. At this time, when cement-based grouting material is injected into the porous asphalt mixture, the grouting material can quickly fill the pores in the porous asphalt material. Because the side of the roadbed is clamped by the elastic clamping plate, the amount of grouting material flowing out along the side of the roadbed is greatly reduced.

[0013] Preferably, an elastic pad is provided on the surface of the elastic abutment plate that abuts against the roadbed, and the elastic pad is used to fill the gap between the elastic abutment plate and the roadbed when the elastic abutment plate abuts against the roadbed.

[0014] By adopting the above technical solution, since the side of the roadbed may be uneven, when the elastic clamping plate comes into contact with the roadbed, the elastic pad will deform under the force applied by the roadbed and the elastic clamping plate, thereby filling the gap between the elastic clamping plate and the roadbed and further reducing the amount of grouting material flowing out along the side of the roadbed.

[0015] Preferably, the adjustment assembly includes two adjustment screws, which are connected to the elastic abutment plate. The two adjustment screws are spaced apart along the width direction of the substrate and are threadedly connected to the substrate.

[0016] By adopting the above technical solution, the two adjusting screws are spaced apart along the width of the base plate, which improves the stability of the adjusting screws driving the elastic clamping plate to move towards the roadbed. At the same time, it reduces the probability that when the adjusting screws abut against the elastic clamping plate, the contact point between the adjusting screws and the elastic clamping plate is deviated from the centerline of the elastic clamping plate along the width direction, resulting in excessive force on the elastic clamping plate during grouting of the roadbed, which would prevent the elastic clamping plate from abutting against the roadbed.

[0017] Preferably, the adjusting assembly further includes a bellows, which is sleeved on the adjusting screw, and the bellows is used to reduce the amount of grouting material adhering to the adjusting screw.

[0018] By adopting the above technical solution, during the grouting process of the roadbed, some grouting material will inevitably splash onto the adjusting screw. Since the adjusting screw and the base plate are in a threaded connection state, the protective effect of the bellows helps to reduce the amount of grouting material adhering to the adjusting screw, and plays a positive guiding role in maintaining the stability of the threaded fit between the adjusting screw and the base plate.

[0019] Preferably, the surface of the elastic abutment plate is provided with an abutment seat, the abutment seat is provided with a limiting port, and the end of the adjusting screw is provided with an abutment head. When the adjusting screw is turned to move the abutment head toward the elastic abutment plate, the abutment head is located in the limiting port when it abuts against the abutment seat.

[0020] By adopting the above technical solution, the elastic clamping plate has a certain degree of elasticity to adapt to roadbeds with bends. During the process of the adjusting screw driving the elastic clamping plate to move towards the roadbed, the elastic clamping plate may deform. Through the cooperation of the clamping head and the limiting port, the clamping head can be displaced along the limiting port during the movement of the elastic clamping plate towards the roadbed, thereby improving the stability of the fit between the elastic clamping plate and the roadbed and reducing the probability of the elastic clamping plate having an angle of deviation after contacting the roadbed.

[0021] Preferably, the length of the elastic abutment plate is set in the range of 1m to 2.1m, and the length of the substrate is less than the length of the elastic abutment plate.

[0022] By adopting the above technical solution, the probability of the elastic abutment plate deforming in some areas along its length due to its excessive length and elasticity, thus increasing the gap between the elastic abutment plate and the roadbed, is reduced. At the same time, because the length of the base plate is less than that of the elastic abutment plate, the probability of the elastic abutment plate deforming excessively due to excessive roadbed bends during the laying process, thus increasing the gap between two adjacent elastic abutment plates, is also reduced.

[0023] Preferably, the ground stake is fitted with a removable ring, the outer diameter of which is smaller than the diameter of the ground stake head.

[0024] By adopting the above technical solution, the ground nail is equipped with a removable ring, and the outer diameter of the removable ring is smaller than the diameter of the ground nail head, so that there is a certain gap between the ground nail head and the roadbed, so that the ground nail can be removed along the roadbed after use.

[0025] Preferably, the fixing hole is inclined from the end of the fixing ear away from the abutment with the base plate to the end of the fixing ear close to the abutment with the base plate. When the ground nail is inserted into the roadbed, there is an inclination angle α between the ground nail and the roadbed, where 10°≤α≤30°.

[0026] By adopting the above technical solution, after the base plate is fixedly connected to the roadbed using ground nails through fixing ears, it is necessary to twist the adjusting screw to drive the elastic clamping plate to abut against the roadbed. At this time, the ground nail will bear the reaction force applied by the adjusting screw to the elastic clamping plate. Because there is an inclination angle α between the ground nail and the roadbed, the stability of the fit between the ground nail and the roadbed is improved, and the probability of the fit between the ground nail and the roadbed becoming loose due to excessive force applied by the adjusting screw to the elastic clamping plate, resulting in excessive reaction force on the ground nail.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Because the fixing ear and the base plate are in a fixed connection state, the base plate and the roadbed are stably connected. By adjusting the adjustment component, the elastic clamping plate and the side of the roadbed can be made to fit together. Because the side of the roadbed is clamped by the elastic clamping plate, the amount of grouting material flowing out along the side of the roadbed is greatly reduced.

[0029] 2. When the elastic clamping plate comes into contact with the roadbed, the elastic pad will deform under the force applied by the roadbed and the elastic clamping plate, thereby filling the gap between the elastic clamping plate and the roadbed and further reducing the amount of grouting material flowing out along the side of the roadbed;

[0030] 3. Because the ground nail is equipped with a removable ring, and the outer diameter of the removable ring is smaller than the diameter of the ground nail head, there is a certain gap between the ground nail head and the roadbed, so that the ground nail can be removed along the roadbed after use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a semi-flexible pavement grouting construction edge sealing device according to an embodiment of this application.

[0032] Figure 2 This is a schematic diagram showing the cooperation relationship between the base plate, adjusting screw, clamping seat, and fixing ear in a semi-flexible pavement grouting construction edge sealing device according to an embodiment of this application.

[0033] Figure 3 This is a schematic diagram illustrating the relationship between the ground nail and the easy-to-remove ring in a semi-flexible pavement grouting construction edge sealing device according to an embodiment of this application.

[0034] Figure 4 This is a schematic diagram illustrating the practical application of a semi-flexible pavement grouting construction sealing device in the roadbed construction process, according to an embodiment of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Fixing ear; 21. Fixing hole; 3. Ground stake; 31. Access ring; 4. Elastic clamping plate; 41. Elastic pad; 42. Clamping seat; 421. Limiting port; 5. Adjustment assembly; 51. Adjustment screw; 511. Clamping head; 52. Corrugated pipe; 6. Roadbed. Detailed Implementation

[0036] First, it should be noted that in this embodiment, the semi-flexible pavement is a new type of pavement structure that combines the rigidity of asphalt pavement and cement concrete pavement. After the asphalt pavement with holes is laid, cement concrete is poured on the asphalt pavement. The cement concrete penetrates into the holes, and the thickness of the resulting roadbed 6 is approximately equal to the thickness of the asphalt pavement.

[0037] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0038] This application discloses a semi-flexible pavement grouting construction edge sealing device. (Refer to...) Figures 1-3 A semi-flexible pavement grouting construction edge sealing device includes a base plate 1. Several fixing ears 2 are evenly distributed along the length of the base plate 1. The fixing ears 2 are perpendicular to the base plate 1 and fixed by welding to form an L-shaped structure. A fixing hole 21 is provided at the end of each fixing ear 2 away from the end connected to the base plate 1. A ground nail 3 passes through the fixing hole 21. An elastic abutment plate 4 is connected to the base plate 1. Several sets of adjusting components 5 are evenly distributed along the length of the base plate 1. The adjusting components 5 are detachably connected to the elastic abutment plate 4 and are used to adjust whether the elastic abutment plate 4 is pressed against or away from the side of the roadbed 6.

[0039] First, it should be noted that the terms "several fixed ears 2" and "several sets of adjustment components 5" are quantitative terms. Since they can be added or removed according to actual needs, and the components and installation methods are the same, their specific quantities are not limited here. For ease of explanation, either one will be selected for description in the following instructions.

[0040] Specifically, the fixing hole 21 is inclined from the end of the fixing ear 2 away from the base plate 1 to the end closer to the base plate 1, with an inclination angle α of 20° (10°≤α≤30°). When the ground nail 3 is inserted into the fixing hole 21 and driven into the roadbed 6, the ground nail 3 forms an inclination angle α with the surface of the roadbed 6, using the frictional resistance of the roadbed 6 to enhance the connection stability between the base plate 1 and the roadbed 6. A removable ring 31 is fitted in the middle of the ground nail 3. The removable ring 31 is a circular metal ring with an outer diameter smaller than the head diameter of the ground nail 3, which facilitates the quick removal of the ground nail 3 by construction personnel using tools.

[0041] Furthermore, refer to Figure 1 and Figure 2 The surface of the elastic abutment plate 4 that abuts against the roadbed 6 is fixed with an elastic pad 41 by bolts. The elastic pad 41 can be made of EVA or silicone. The elastic pad 41 is used to fill the gap between the elastic abutment plate 4 and the surface of the roadbed 6 caused by unevenness. The elastic abutment plate 4 is made of Q235 steel plate, which gives it a certain rigidity and a certain deformation capacity. Its length is set to 1.5m (within the range of 1m to 2.1m) (SI unit, meter), and the length of the base plate 1 is less than that of the elastic abutment plate 4, so that the two ends of the elastic abutment plate 4 extend beyond the edge of the base plate 1 to adapt to the deformation requirements of the roadbed 6 when it has slight bends. When dealing with roadbeds 6 of different thicknesses, only the size of the elastic abutment plate 4 needs to be changed.

[0042] Correspondingly, several sets of adjustment components 5 are evenly distributed along the length of the base plate 1, each set including two adjustment screws 51 and a bellows 52. The adjustment screws 51 pass through threaded holes on the base plate 1 and are threadedly connected to the base plate 1, with a hemispherical clamping head 511 machined at their ends; a clamping seat 42 is welded to the back of the elastic clamping plate 4, and an elongated limiting opening 421 is provided on the clamping seat 42, which is arranged along the length of the base 1. When the adjustment screws 51 are rotated, the clamping head 511 moves along the limiting opening 421 and pushes the elastic clamping plate 4 toward the roadbed 6 until the elastic pad 41 is tightly attached to the side of the roadbed 6. The bellows 52 is sleeved on the outside of the adjustment screws 51, with both ends fixed to the base plate 1 and the elastic clamping plate 4 respectively, forming a dust cover to prevent grouting material from adhering to the threaded surface and affecting the adjustment function.

[0043] Meanwhile, the elastic clamping plate 4 has a 2mm bending allowance to provide it with a certain degree of elasticity to adapt to the slight curvature of the roadbed 6, and works with the elastic pad 41 to achieve a flexible seal; the fixing ears 2 are evenly distributed on the base plate 1 to ensure that the base plate 1 is subjected to balanced force when the ground nail 3 is fixed, and to avoid local stress concentration.

[0044] Therefore, refer to Figure 1 , Figure 2 as well as Figure 4During installation, the base plate 1 is first placed along the edge of the roadbed 6. The ground nails 3 are driven into the roadbed 6 through the inclined fixing holes 21 using a hammer, and the inclination angle α is used to enhance the fixing stability. Then, the adjusting screw 51 is rotated with a wrench, and the elastic clamping plate 4 is pushed to move horizontally through the cooperation of the clamping head 511 and the limiting port 421 until the elastic soft pad 41 is completely in contact with the roadbed 6. During grouting, the elastic clamping plate 4 forms a sealed boundary under the clamping force of the adjusting screw 51, and the corrugated pipe 52 blocks the splashed grout. During the grouting process of the roadbed 6, some grouting material will inevitably splash onto the adjusting screw 51. Since the adjusting screw 51 and the base plate 1 are in a threaded connection state, the protective effect of the corrugated pipe 52 helps to reduce the amount of grouting material adhering to the adjusting screw 51, and plays a positive guiding role in maintaining the stability of the threaded fit between the adjusting screw 51 and the base plate 1.

[0045] Reference Figure 3 The easy-access ring 31 is tightly fitted into the middle of the ground nail 3. The stepped structure formed by its outer diameter and the head of the ground nail 3 provides a point of leverage for the disassembly tool, improving the convenience of construction. The length design of the limiting port 421 allows the elastic clamping plate 4 to deviate slightly due to the bend of the roadbed 6, avoiding stress concentration caused by rigid contact and ensuring a smooth and reliable clamping process.

[0046] The implementation principle of the semi-flexible pavement grouting construction sealing device in this application embodiment is as follows: The inclined fixing structure of the ground nail 3 and the fixing ear 2 utilizes the frictional resistance of the roadbed 6 to enhance the pull-out resistance of the base plate 1, enabling it to stably withstand the clamping reaction force applied by the adjusting component 5. Through the cooperation of the adjusting screw 51 and the clamping seat 42, the elastic clamping plate 4 is driven to translate and fills the gaps on the surface of the roadbed 6 with the elastic soft pad 41, forming a flexible sealing boundary. The corrugated pipe 52 protects the adjusting screw 51, allowing it to be smoothly adjusted along the base plate 1 and reused. This device achieves stable sealing through a mechanical structure, effectively reducing the leakage rate of grouting material, while adapting to different roadbed heights and bends, improving construction efficiency and pavement quality.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A semi-flexible pavement grouting construction edge sealing device, characterized in that: The system includes a base plate (1), on which a plurality of fixing ears (2) are evenly distributed along the length direction. The fixing ears (2) are perpendicular to the base plate (1). A fixing hole (21) is provided at the end of the fixing ear (2) away from the connection with the base plate (1). A ground nail (3) is inserted in the fixing hole (21). An elastic abutment plate (4) is movably connected to the base plate (1). A plurality of adjustment components (5) are evenly distributed along the length direction on the base plate (1). The adjustment components (5) are detachably connected to the elastic abutment plate (4). The adjustment components (5) are used to adjust the elastic abutment plate (4) to press against or move away from the side of the roadbed (6).

2. The semi-flexible pavement grouting construction edge sealing device according to claim 1, characterized in that: An elastic pad (41) is provided on the surface of the elastic abutment plate (4) that abuts against the roadbed (6). The elastic pad (41) is used to fill the gap between the elastic abutment plate (4) and the roadbed (6) when the elastic abutment plate (4) abuts against the roadbed (6).

3. The semi-flexible pavement grouting construction edge sealing device according to claim 1, characterized in that: The adjustment assembly (5) includes two adjustment screws (51), which are connected to the elastic abutment plate (4). The two adjustment screws (51) are spaced apart along the width direction of the substrate (1), and the adjustment screws (51) are threadedly connected to the substrate (1).

4. The semi-flexible pavement grouting construction edge sealing device according to claim 3, characterized in that: The adjustment assembly (5) also includes a bellows (52), which is sleeved on the adjustment screw (51). The bellows (52) is used to reduce the amount of grouting material adhering to the adjustment screw (51).

5. The semi-flexible pavement grouting construction edge sealing device according to claim 4, characterized in that: The elastic abutment plate (4) is provided with an abutment seat (42) on its surface. The abutment seat (42) has a limit opening (421). The end of the adjusting screw (51) is provided with an abutment head (511). When the adjusting screw (51) is turned to move the abutment head (511) toward the elastic abutment plate (4), the abutment head (511) is located in the limit opening (421) when it abuts against the abutment seat (42).

6. The semi-flexible pavement grouting construction edge sealing device according to claim 1, characterized in that: The length of the elastic clamping plate (4) is set in the range of 1m to 2.1m, and the length of the base plate (1) is less than the length of the elastic clamping plate (4).

7. The semi-flexible pavement grouting construction edge sealing device according to claim 1, characterized in that: The ground nail (3) is fitted with a removable ring (31), the outer diameter of which is smaller than the diameter of the head of the ground nail (3).

8. The semi-flexible pavement grouting construction edge sealing device according to claim 1, characterized in that: The fixing hole (21) is inclined along the fixing ear (2) from the end away from the base plate (1) to the end of the fixing ear (2) close to the base plate (1). When the ground nail (3) penetrates the roadbed (6), there is an inclination angle α between the ground nail (3) and the roadbed (6), 10°≤α≤30°.

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