Rapid pavement repairing structure

Abstract

A quick pavement repairing structure comprises two first precast slabs, two second precast slabs, a third precast slab and a fourth precast slab. The first precast slab and the second precast slab are symmetrically arranged at the repairing starting end and the repairing tail end of the pavement respectively; the plurality of third prefabricated slabs are sequentially arranged between the first prefabricated slab and the second prefabricated slab; a plurality of fourth prefabricated slabs are arranged between the two second prefabricated slabs in sequence, a plurality of fifth prefabricated slabs are arranged on one sides of the fourth prefabricated slabs, and the fifth prefabricated slabs are located between the two rows of third prefabricated slabs; the first prefabricated plates and the adjacent second prefabricated plates, the adjacent fifth prefabricated plates, the adjacent two third prefabricated plates, the second prefabricated plates and the adjacent third prefabricated plates, the third prefabricated plates and the adjacent fifth prefabricated plates, the first prefabricated plates and the adjacent two fifth prefabricated plates between the third prefabricated plates are connected through post-tensioned steel bars. The precast slabs are adopted for repairing the pavement, support of large equipment is not needed, and the repairing strength is guaranteed while the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface repair, and in particular relates to a rapid road surface repair structure. Background Art

[0002] As an important means of transportation connecting different regions such as cities, villages, ports, airports, etc., when a major disaster occurs, a highway may directly damage the foundation of the highway, and may even directly cause the road surface of the highway to collapse, forming pits, thus affecting normal traffic. In order to reduce the impact on public transportation, it is necessary to quickly repair the damaged road surface. Currently, the commonly used method is to first remove all the debris in the pit, then backfill the earthwork filler, and then compact it layer by layer. This method takes a long time and also requires the support of a large number of large-scale equipment. However, in the event of a major disaster, it is difficult to transport large-scale construction equipment to the site. Manual repair without large-scale equipment will take more time and the effect is not ideal. Moreover, when large vehicles need to pass, higher requirements are imposed on the road surface. Using this method also requires more time to compact the foundation to meet the requirements. Content of the Utility Model

[0003] In view of the deficiencies of the above-mentioned related prior art, the present application provides a rapid road surface repair structure, which uses precast slabs to repair the backfilled road surface, without the support of large-scale equipment, improves efficiency while ensuring the repair strength, and has strong practicability.

[0004] To achieve the above object, the utility model adopts the following technologies:

[0005] A rapid road surface repair structure includes: a first precast slab, a second precast slab, a third precast slab, and a fourth precast slab.

[0006] There are two first precast slabs, which are symmetrically arranged at the starting end of the road surface repair; there are two second precast slabs, which are symmetrically arranged at the ending end of the road surface repair; there are multiple third precast slabs, which are respectively arranged in sequence between the first precast slab and the second precast slab; there are multiple fourth precast slabs, which are arranged in sequence between the two second precast slabs. Multiple fifth precast slabs are successively arranged on one side of the fourth precast slab, and the fifth precast slab is located between two columns of third precast slabs. The fifth precast slab farthest from the fourth precast slab is located between the two first precast slabs; between the first precast slab and the adjacent second precast slab and fifth precast slab, between adjacent two third precast slabs, between the second precast slab and the adjacent third precast slab, between the third precast slab and the adjacent fifth precast slab, between the first precast slabs, and between adjacent two fifth precast slabs between the third precast slabs, post-tensioned steel bars are used for connection.

[0007] Furthermore, the first prefabricated plate, the second prefabricated plate, the third prefabricated plate and the fifth prefabricated plate are all provided with an L-shaped pipe, and the two ends of the pipe respectively pass through the two vertical sides of the first prefabricated plate, the second prefabricated plate, the third prefabricated plate and the fifth prefabricated plate, and the pipes are respectively located at right angles of the first prefabricated plate, the second prefabricated plate, the third prefabricated plate and the fifth prefabricated plate, and the pipes of the first prefabricated plate and the fifth prefabricated plate are located on one side in the length direction. When used, both ends of the post-tensioned steel bars pass through the pipe.

[0008] Furthermore, the ports on one side of the length direction and the width direction of the first prefabricated plate, the ports on one side of the width direction of the second prefabricated plate, the two ports on one side of the width direction and the other port on one side of the length direction of the third prefabricated plate, and the two ports on one side of the length direction of the two pipes of the fifth prefabricated plate are all provided with recesses, a connecting plate is provided at the bottom of the recess, a large sleeve is provided at the center of the connecting plate, a small sleeve with a threaded fit is provided in the large sleeve, the small sleeve is aligned with the pipe, and when used, the post-tensioned steel bars are passed through the small sleeve, and a wedge is provided in the small sleeve for locking the post-tensioned steel bars.

[0009] Furthermore, an anchor head is provided at the end of the recess, a groove is provided on the end face of the anchor head, a through hole is provided at the bottom of the groove, the through hole is aligned with the small sleeve, and when used, the post-tensioned steel bar passes through the through hole and out of the groove, and the groove is filled with cement slurry.

[0010] Further, the connecting plate is connected to the bottom of the recess by screws.

[0011] Furthermore, anchor rods are inserted through the first prefabricated plate, and the fifth prefabricated plate, the second prefabricated plate and the fourth prefabricated plate therebetween, and the lower ends of the anchor rods are inserted through the road surface.

[0012] Furthermore, the first prefabricated plate and the fifth prefabricated plate, two adjacent fifth prefabricated plates, the second prefabricated plate and the fourth prefabricated plate, and two adjacent fourth prefabricated plates are all connected to each other by fixed ribs.

[0013] Furthermore, the first precast plate, the second precast plate, the third precast plate, the fourth precast plate and the fifth precast plate are each provided with a plurality of conventional steel bars along their length direction and a plurality of prestressed steel bars along their width direction, and the axes of the conventional steel bars and the prestressed steel bars are perpendicular to each other and are staggered up and down.

[0014] Furthermore, a plurality of steel pipes are provided at the bottom along the width direction of the first prefabricated plate, the second prefabricated plate, the third prefabricated plate, the fourth prefabricated plate and the fifth prefabricated plate, composite fiber layers are provided on the upper and lower sides of the steel pipes and connected with bolts, and one of the steel pipes is provided with post-tensioned steel bars.

[0015] The beneficial effects of the present utility model are as follows: after backfilling the potholes on the road surface, precast slabs are used to repair the road surface, and the precast slabs are connected by post-tensioned steel bars, without the support of large equipment, which is more convenient and fast, and while improving efficiency, the repair strength is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are only for illustrating the selected embodiments, not all possible implementation schemes, and are not intended to limit the scope of the present utility model.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of the sectional structure of an embodiment of the present application.

[0019] Figure 3 is Figure 2 an enlarged schematic view of part A of

[0020] Figure 4 It is a distribution diagram of pre-tensioned steel bars and conventional steel bars in a concrete precast slab.

[0021] Figure 5 It is a schematic sectional view of one side in the width direction of the concrete precast slab.

[0022] Figure 6 It is a schematic sectional view of one side in the length direction of the concrete precast slab.

[0023] Figure 7 It is a schematic sectional structure diagram of a precast slab with a steel pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will describe the embodiments of the present utility model in detail with reference to the drawings. However, the described embodiments are only a part of the embodiments of the present utility model, not all of the embodiments.

[0025] As Figures 1-7 shown, this embodiment provides a rapid road surface repair structure, including: a first precast slab 1, a second precast slab 2, a third precast slab 3, and a fourth precast slab 4.

[0026] There are two first precast slabs 1, which are symmetrically arranged at the starting end of the road surface repair; there are two second precast slabs 2, which are symmetrically arranged at the ending end of the road surface repair; there are multiple third precast slabs 3, which are sequentially arranged between the first precast slabs 1 and the second precast slabs 2; there are multiple fourth precast slabs 4, which are sequentially arranged between the two second precast slabs 2. A plurality of fifth precast slabs 5 are sequentially arranged on one side of the fourth precast slabs 4, and the fifth precast slabs 5 are located between two rows of third precast slabs 3. The fifth precast slab 5 farthest from the fourth precast slab 4 is located between the two first precast slabs 1. Between the first precast slab 1 and the adjacent second precast slab 2 and fifth precast slab 5, between two adjacent third precast slabs 3, between the second precast slab 2 and the adjacent third precast slab 3, between the third precast slab 3 and the adjacent fifth precast slab 5, between the first precast slabs 1 and between two adjacent fifth precast slabs 5 among the third precast slabs 3, all are connected by post-tensioned steel bars.

[0027] Specifically, L-shaped pipes 8 are provided in the first precast slab 1, the second precast slab 2, the third precast slab 3, and the fifth precast slab 5. The two ports of the pipe 8 penetrate out from the two vertical sides of the first precast slab 1, the second precast slab 2, the third precast slab 3, and the fifth precast slab 5 respectively. The pipes 8 are respectively located at the right angles of the first precast slab 1, the second precast slab 2, the third precast slab 3, and the fifth precast slab 5, and the pipes 8 of the first precast slab 1 and the fifth precast slab 5 are on the same side in the length direction. When connecting the first precast slab 1, the second precast slab 2, the third precast slab 3, and the fifth precast slab 5, as Figure 2 shown, the two ends of a post-tensioned steel bar penetrate out from the pipes 8 of the first precast slab 1 and the fifth precast slab 5 respectively, the two ends of a post-tensioned steel bar pass through the two pipes 8 of two adjacent fifth precast slabs 5 respectively, the two ends of a post-tensioned steel bar pass through the two pipes 8 of the first precast slab 1 and the adjacent third precast slab 3, the two ends of a post-tensioned steel bar pass through the two pipes 8 of the third precast slab 3 and the adjacent fifth precast slab 5, the two ends of a post-tensioned steel bar pass through the two pipes 8 of two adjacent third precast slabs 3, and the two ends of a post-tensioned steel bar penetrate out from the two pipes 8 of the second precast slab 2 and the adjacent third precast slab 3.

[0028] Specifically, the ports of the pipe 8 of the first precast plate 1 located on one side in the length direction and one side in the width direction, the ports of the pipe 8 of the second precast plate 1 located on one side in the width direction, the two ports of the two pipes 8 of the third precast plate 3 located on one side in the width direction and the port of another pipe 8 located on one side in the length direction, and the two ports of the two pipes 8 of the fifth precast plate 5 located on one side in the length direction are all provided with a recess 81, a connecting plate 82 is provided at the bottom of the recess 81, a large sleeve 83 is provided at the center of the connecting plate 82, a small sleeve 84 with a threaded fit is provided in the large sleeve 83, the small sleeve 84 is aligned with the pipe 8, when the post-tensioned steel bar passes through the pipe 8, the post-tensioned steel bar is passed through the small sleeve 84, and a wedge is provided in the small sleeve 84 for locking the post-tensioned steel bar, at this time, rotating the small sleeve 84 can apply tension to the post-tensioned steel bar to tighten the post-tensioned steel bar.

[0029] Specifically, an anchor head 85 is provided at the end of the recess 81, a groove 86 is provided on the end face of the anchor head 85, a through hole 87 is provided at the bottom of the groove 86, and the through hole 87 is aligned with the small sleeve 84. When the prefabricated panels are connected with post-tensioned steel bars, the post-tensioned steel bars pass through the through hole 87 and out of the groove 86, and then cement slurry is filled in the groove 86 to further fix the post-tensioned steel bars.

[0030] Specifically, the connecting plate 82 is connected to the bottom of the recess 81 by screws.

[0031] Specifically, anchor rods 41 are penetrated through the first precast panel 1, the fifth precast panel 5 therebetween, the second precast panel 2 and the fourth precast panel 4, and the lower ends of the anchor rods 41 are penetrated through the road surface, thereby fixing the precast panels at the starting and end ends of the repaired road surface on the road surface.

[0032] Specifically, fixed ribs 31 are used to connect the first precast panel 1 and the fifth precast panel 5, between two adjacent fifth precast panels 5, between the second precast panel 2 and the fourth precast panel 4, and between two adjacent fourth precast panels 4, thereby further strengthening the connection effect of the precast panels located at the starting and end of the repaired road surface and ensuring their service life.

[0033] Specifically, if conventional precast concrete panels are used, the first precast panel 1, the second precast panel 2, the third precast panel 3, the fourth precast panel 4, and the fifth precast panel 5 used in the present application are all provided with a plurality of conventional steel bars 6 along their length direction, and a plurality of prestressed steel bars 7 along their width direction. The axes of the conventional steel bars 6 and the prestressed steel bars 7 are perpendicular to each other and are staggered up and down, thereby further enhancing the bearing capacity of the precast panels.

[0034] Specifically, if a metal hybrid precast slab is adopted, then a plurality of steel pipes 11 are provided at the bottom of the first precast slab 1, the second precast slab 2, the third precast slab 3, the fourth precast slab 4, and the fifth precast slab 5 used in this application along their width directions. Composite fiber layers 12 are provided on both the upper and lower sides of the steel pipes 11 and are connected by bolts. The bearing capacity of the precast slab is improved through the composite fiber layers 12. The composite fiber layers 12 can be made of carbon fiber, etc. And a post-tensioned steel bar is inserted into one of the steel pipes 11 of the first precast slab 1, the second precast slab 2, the third precast slab 3, the fourth precast slab 4, and the fifth precast slab 5. This post-tensioned steel bar successively connects the precast slabs with the length direction parallel to the road width direction, thereby further strengthening the connection effect of the precast slabs.

[0035] More specifically, since the length and width of the road surface to be repaired will not be integer multiples of the precast slab, for the convenience of construction, it can be carried out as shown in Figure 1 and Figure 2 . The corresponding precast slabs are cut along the dotted line, and at the same time, avoid cutting the side provided with the anchor head 85 during cutting.

[0036] Since the above is only the preferred embodiment of the present utility model and is not used to limit the present utility model, obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A rapid road surface repair structure, characterized in that, Including: There are two first precast slabs (1), which are symmetrically arranged at the starting end of the road surface repair. There are two second precast slabs (2), which are symmetrically arranged at the ending end of the road surface repair. There are multiple third precast slabs (3), which are respectively arranged in sequence between the first precast slab (1) and the second precast slab (2). There are multiple fourth precast slabs (4), which are arranged in sequence between the two second precast slabs (2). Multiple fifth precast slabs (5) are successively arranged on one side of the fourth precast slab (4), and the fifth precast slab (5) is located between two columns of the third precast slabs (3). The fifth precast slab (5) farthest from the fourth precast slab (4) is located between the two first precast slabs (1). Between the first precast slab (1) and the adjacent second precast slab (2) and fifth precast slab (5), between two adjacent third precast slabs (3), between the second precast slab (2) and the adjacent third precast slab (3), between the third precast slab (3) and the adjacent fifth precast slab (5), between the first precast slabs (1), and between two adjacent fifth precast slabs (5) among the third precast slabs (3), post-tensioned steel bars are all used for connection.

2. The pavement rapid repair structure according to claim 1, characterized in that, L-shaped pipes (8) are provided in the first precast slab (1), second precast slab (2), third precast slab (3), and fifth precast slab (5). Two ports of the pipe (8) respectively penetrate out from two vertical sides of the first precast slab (1), second precast slab (2), third precast slab (3), and fifth precast slab (5). The pipes (8) are respectively located at the right angles of the first precast slab (1), second precast slab (2), third precast slab (3), and fifth precast slab (5), and the pipes (8) of the first precast slab (1) and the fifth precast slab (5) are located on one side in the length direction. During application, both ends of the post-tensioned steel bar penetrate out of the pipe (8).

3. The pavement rapid repair structure according to claim 2, characterized in that, Recesses (81) are provided at the ports of the pipe (8) of the first precast slab (1) located on one side in the length direction and one side in the width direction, at the port of the pipe (8) of the second precast slab (2) located on one side in the width direction, at the two ports of the two pipes (8) of the third precast slab (3) located on one side in the width direction and at the port of the other pipe (8) located on one side in the length direction, and at the two ports of the two pipes (8) of the fifth precast slab (5) located on one side in the length direction. A connecting plate (82) is provided at the bottom of the recess (81). A large sleeve (83) is provided at the center of the connecting plate (82). A small sleeve (84) with a threaded fit is provided in the large sleeve (83). The small sleeve (84) is aligned with the pipe (8). During application, the post-tensioned steel bar is inserted into the small sleeve (84), and a wedge is provided in the small sleeve (84) for locking the post-tensioned steel bar.

4. The pavement rapid repair structure according to claim 3, characterized in that, An anchor head (85) is provided at the end of the recess (81). A groove (86) is provided on the end face of the anchor head (85). A through hole (87) is provided at the bottom of the groove (86). The through hole (87) is aligned with the small sleeve (84). During application, the post-tensioned steel bar passes through the through hole (87) and exits the groove (86). The groove (86) is filled with grout.

5. The pavement rapid repair structure according to claim 3, characterized in that, The connecting plate (82) is connected to the bottom of the recess (81) by screws.

6. The pavement rapid repair structure according to claim 1, characterized in that, An anchor rod (41) passes through the first precast slab (1), the fifth precast slab (5) therebetween, the second precast slab (2), and the fourth precast slab (4), and the lower end of the anchor rod (41) penetrates into the road surface.

7. The pavement rapid repair structure according to claim 1, characterized in that, Between the first precast slab (1) and the fifth precast slab (5), between adjacent fifth precast slabs (5), between the second precast slab (2) and the fourth precast slab (4), and between adjacent fourth precast slabs (4), they are all connected to each other by fixing bars (31).

8. The pavement rapid repair structure according to any one of claims 1-7, characterized in that, In the first precast slab (1), the second precast slab (2), the third precast slab (3), the fourth precast slab (4), and the fifth precast slab (5), a plurality of conventional steel bars (6) are provided along their length directions, and a plurality of pre-tensioned prestressed steel bars (7) are provided along their width directions. The axes of the conventional steel bars (6) and the pre-tensioned prestressed steel bars (7) are perpendicular to each other and are arranged staggered up and down.

9. The pavement rapid repair structure according to any one of claims 1-7, characterized in that, A plurality of steel pipes (11) are provided along the width direction at the bottom of the first precast slab (1), the second precast slab (2), the third precast slab (3), the fourth precast slab (4), and the fifth precast slab (5). Composite fiber layers (12) are provided on both the upper and lower sides of the steel pipes (11) and are connected by bolts. A post-tensioned steel bar passes through one of the steel pipes (11).

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