Pavement repair structure and pavement structure

Abstract

The utility model relates to road surface repair technical field provides a kind of road surface repair structure and road surface structure.In road surface repair structure, repair groove is opened to the position of pit groove disease that appears on road surface body.In the bottom of repair groove, bottom pitch layer is laid, and reinforcing grid is laid in the upside of bottom pitch layer, and reinforcing grid, bottom pitch layer and repair groove bottom are fastened by fastener fastening connection.In the upper layer of reinforcing grid, top pitch layer is laid.By setting the composite structure of bottom pitch layer and reinforcing grid, and using fastener to carry out mechanical anchoring of reinforcing grid, bottom pitch layer and repair groove bottom, the interface bonding strength between repair layer and base layer is significantly enhanced;The reinforcing effect of reinforcing grid can also disperse driving load and environmental stress, effectively inhibit the crack propagation and peeling tendency, so that the integrity and durability of repaired pavement are greatly improved, the debonding and secondary damage problems of repair structure are reduced, and the service life of road surface structure is prolonged.

Description

Technical Field

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

[0002] Potholes in asphalt pavements are a common pavement defect. Current technology typically involves directly filling the repair groove with asphalt mixture to form a repair layer. However, the bond strength between the repair layer and the base layer is relatively low, and under repeated traffic loads and environmental stresses, it is prone to debonding, peeling, and secondary damage, thus significantly shortening the service life of the repaired pavement. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a road repair structure and a road structure.

[0004] In a first aspect, this utility model provides a road repair structure, comprising: a repair groove formed in the road surface body; a bottom asphalt layer laid in the repair groove; a reinforcing grid laid on the upper side of the bottom asphalt layer; fasteners passing through the bottom asphalt layer and extending into the bottom of the repair groove from the reinforcing grid; and a top asphalt layer laid on the upper side of the reinforcing grid.

[0005] According to the present invention, a road repair structure is provided, which further includes a reinforcement groove, the reinforcement groove being opened to the bottom of the repair groove, and the bottom asphalt layer being able to be laid and cover the reinforcement groove.

[0006] According to the present invention, a road repair structure is provided, wherein there are multiple reinforcement grooves, and the multiple reinforcement grooves are arranged in a rectangular array to the bottom of the repair groove.

[0007] According to the present invention, a road repair structure is provided, wherein the reinforcing grid includes: a grid frame; multiple transverse ribs, each of which is connected to the grid frame at intervals along the transverse direction; and multiple longitudinal ribs, each of which is connected to the grid frame at intervals along the longitudinal direction, wherein each of the longitudinal ribs and each of the transverse ribs intersects each other to form multiple hollow columns.

[0008] According to the road repair structure provided by this utility model, the bottom asphalt layer corresponding to the position of the hollow column can be partially squeezed into the hollow column; the top asphalt layer corresponding to the position of each of the hollow columns can be partially squeezed into the hollow column.

[0009] According to the road repair structure provided by this utility model, the reinforcing grid further includes: a plurality of bottom punctures, each of the bottom punctures being spaced apart on the side of the transverse ribs and / or the longitudinal ribs near the bottom asphalt layer, the bottom punctures being used to insert into the bottom asphalt layer.

[0010] According to the road repair structure provided by this utility model, a first fastening mounting position is formed in the middle of the reinforcing grid, and a second fastening mounting position is formed at each of the four corners of the reinforcing grid; a fastener is provided on the first fastening mounting position and each of the second fastening mounting positions.

[0011] According to the present invention, a road repair structure is provided, the road repair structure further includes: an adhesive layer, the adhesive layer being disposed between the reinforcement groove and the bottom asphalt layer, between the repair groove and the bottom asphalt layer, between the reinforcement grid and the repair groove, between the reinforcement grid and the bottom asphalt layer, and between the reinforcement grid and the top asphalt layer.

[0012] According to the present invention, a road repair structure is provided, which further includes an annular groove, wherein the annular groove is opened to the position of the sidewall of the repair groove corresponding to the top asphalt layer, and the top asphalt layer can fill the annular groove.

[0013] A second aspect of this utility model provides a road surface structure, including a road surface body; and a road surface repair structure as described above, wherein the road surface repair structure is disposed on the road surface body.

[0014] The road repair structure provided by this utility model includes a repair groove, a bottom asphalt layer, a reinforcing grid, fasteners, and a top asphalt layer. The repair groove is opened to the location of potholes on the road surface. A bottom asphalt layer is laid at the bottom of the repair groove, and a reinforcing grid is laid on the upper side of the bottom asphalt layer. The reinforcing grid, the bottom asphalt layer, and the bottom of the repair groove are fastened together with fasteners. A top asphalt layer is laid on top of the reinforcing grid.

[0015] As described above, by setting up a composite structure of a bottom asphalt layer and a reinforcing grid, and using fasteners to mechanically anchor the reinforcing grid, the bottom asphalt layer, and the bottom of the repair groove, the interfacial bonding strength between the repair layer and the base layer is significantly enhanced. The reinforcing effect of the reinforcing grid can also disperse traffic loads and environmental stresses, effectively suppressing crack propagation and spalling tendencies, thereby greatly improving the integrity and durability of the repaired pavement, reducing the problems of debonding and secondary damage to the repair structure, and extending the service life of the pavement structure.

[0016] Furthermore, the road surface structure provided by this utility model, since it includes the road surface repair structure as described above, also possesses the advantages described above. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a partial structural diagram of the road surface structure provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the road surface structure provided by this utility model.

[0020] Figure 3 This is a simplified schematic diagram of the reinforcing grid structure in the road repair structure provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the top asphalt layer in the road repair structure provided by this utility model.

[0022] Reference numerals: 100, pavement body; 200, repair groove; 300, bottom asphalt layer; 400, reinforcing grid; 410, grid frame; 420, transverse reinforcement; 430, longitudinal reinforcement; 440, hollow column; 500, fastener; 600, top asphalt layer; 700, reinforcing groove; 800, pavement repair structure. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0026] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples, to make the objectives, technical solutions, and advantages of the present invention clearer. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The following is combined with Figures 1 to 4 This invention describes a road repair structure and a road structure provided by an embodiment of the present invention. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation on the present invention.

[0029] An embodiment of the first aspect of this utility model provides a road repair structure 800, such as... Figures 1 to 4 As shown, it includes: a repair groove 200, which is formed in the road surface body 100; a bottom asphalt layer 300, which is laid in the repair groove 200; a reinforcing grid 400, which is laid on the upper side of the bottom asphalt layer 300; a fastener 500, which passes through the reinforcing grid 400 through the bottom asphalt layer 300 and extends into the bottom of the repair groove 200; and a top asphalt layer 600, which is laid on the upper side of the reinforcing grid 400.

[0030] The road repair structure 800 provided by this utility model includes a repair groove 200, a bottom asphalt layer 300, a reinforcing grid 400, fasteners 500, and a top asphalt layer 600. The repair groove 200 is opened to the location of potholes on the road surface 100. The bottom asphalt layer 300 is laid at the bottom of the repair groove 200, and the reinforcing grid 400 is laid on the upper side of the bottom asphalt layer 300. The reinforcing grid 400, the bottom asphalt layer 300, and the bottom of the repair groove 200 are fastened together by the fasteners 500. The top asphalt layer 600 is laid on the upper layer of the reinforcing grid 400.

[0031] As described above, by setting up a composite structure of the bottom asphalt layer 300 and the reinforcing grid 400, and using fasteners 500 to mechanically anchor the reinforcing grid 400, the bottom asphalt layer 300, and the bottom of the repair groove 200, the interfacial bonding strength between the repair layer and the base layer is significantly enhanced. The reinforcing effect of the reinforcing grid 400 can also disperse traffic loads and environmental stresses, effectively suppressing crack propagation and spalling tendencies, thereby greatly improving the integrity and durability of the repaired pavement, reducing the problems of debonding and secondary damage to the repair structure, and extending the service life of the pavement structure.

[0032] For example, the repair groove 200 can be a cuboid groove, a dovetail groove, or an inverted trapezoidal truncated groove.

[0033] It should be noted that this utility model does not limit the material of the reinforcing grating 400. For example, in one embodiment of this utility model, the reinforcing grating 400 can be an ABS resin grating. Furthermore, the distance between the reinforcing grating 400 and the surface of the road surface 100 is 2 cm.

[0034] Furthermore, the top asphalt layer 600 and the bottom asphalt layer 300 can be composed of RAP fine aggregate (0~5mm), new aggregate (5~10mm), recycling agent, viscosity reducer, functional additives, and base asphalt. This allows for efficient utilization of the finely separated RAP aggregate, fully leveraging its oil-rich characteristics and residual value, reducing waste of old materials, and aligning with the concept of resource recycling.

[0035] When laying the top asphalt layer 600, the filler height needs to be slightly higher than the surface of the road body 100, and then compacted and flattened with a press until it is flush with the surface of the road body 100.

[0036] In one embodiment of the present invention, the road repair structure 800 further includes a reinforcement groove 700, which extends to the bottom of the repair groove 200, and the bottom asphalt layer 300 can be laid and cover the reinforcement groove 700.

[0037] Furthermore, in one embodiment of this utility model, there are multiple reinforcing grooves 700, and the multiple reinforcing grooves 700 are arranged in a rectangular array to the bottom of the repair groove 200.

[0038] For example, such as Figure 1 As shown, in this embodiment, the repair groove 200 is a cuboid groove. Multiple cuboid reinforcement grooves 700 are arranged in a rectangular array at the bottom of the repair groove 200. A bottom asphalt layer 300 is laid to the bottom of the repair groove 200, and the bottom asphalt layer 300 can fill each reinforcement groove 700. Furthermore, fasteners 500 can be inserted between the reinforcement grid 400, the bottom asphalt layer 300, and the bottom of the reinforcement grooves 700.

[0039] By setting up the reinforcement groove 700, the connection strength between the bottom asphalt layer 300 and the base layer of the road body 100 can be further improved, thereby improving the strength of the road repair structure 800.

[0040] In one embodiment of the present invention, the reinforced grid 400 includes: a grid frame 410; multiple horizontal ribs 420, each horizontal rib 420 being connected to the grid frame 410 at intervals along the lateral direction; and multiple vertical ribs 430, each vertical rib 430 being connected to the grid frame 410 at intervals along the longitudinal direction, each vertical rib 430 intersecting with each horizontal rib 420 to form multiple hollow columns 440.

[0041] Furthermore, in one embodiment of this utility model, the bottom asphalt layer 300 corresponding to the position of the hollow column 440 can be partially squeezed into the hollow column 440; the top asphalt layer 600 corresponding to the position of each hollow column 440 can be partially squeezed into the hollow column 440.

[0042] Specifically, such as Figure 3As shown, the grid frame 410 has a rectangular frame structure with multiple horizontal ribs 420 and vertical ribs 430 intersecting horizontally and vertically inside. That is, the multiple horizontal ribs 420 and multiple vertical ribs 430 intersect perpendicularly to form a grid structure. Each grid in the grid structure is a hollow column 440. The grid structure has a certain thickness, therefore, each hollow column 440 has a certain depth. After the reinforcing grid 400 is placed on the bottom asphalt layer 300 and pressed downwards, some of the asphalt in the bottom asphalt layer 300 can fill into each hollow column 440 from bottom to top. After the fasteners 500 are connected, when the top asphalt layer 600 is laid on the reinforcing grid 400, some of the asphalt in the top asphalt layer 600 can flow from top to bottom into each hollow column 440. This improves the connection strength between the reinforcing grid 400 and the bottom asphalt layer 300 and the top asphalt layer 600.

[0043] In one embodiment of the present invention, the reinforced grid 400 further includes: a plurality of bottom punctures, each bottom puncture being spaced apart on the side of the transverse ribs 420 and / or longitudinal ribs 430 near the bottom asphalt layer 300, the bottom punctures being used to insert into the bottom asphalt layer 300.

[0044] With this structural arrangement, after the reinforcing grid 400 is placed on the bottom asphalt layer 300 and pressed downwards, the bottom piercing can be inserted into the bottom asphalt layer 300. This further strengthens the connection between the reinforcing grid 400 and the bottom asphalt layer 300.

[0045] In one embodiment of the present invention, a first fastening mounting position is formed in the middle of the reinforcing grille 400, and a second fastening mounting position is formed at each of the four corners of the reinforcing grille 400; a fastener 500 is provided on the first fastening mounting position and each of the second fastening mounting positions. Figure 2 Only one fastener 500 is shown schematically.

[0046] For example, a first fastening mounting position is formed at the intersection of the transverse rib 420 and the longitudinal rib 430 located in the middle; a second fastening mounting position is formed at the intersection of the four corners of the longitudinal rib 430 and the transverse rib 420 located at the edges. The first and second fastening mounting positions are staggered at the bottom piercings to facilitate the connection of the fastener 500. That is, neither the first nor the second fastening mounting positions have bottom piercings. The fastener 500 includes, but is not limited to, connecting rivets.

[0047] In one embodiment of this utility model, the road repair structure 800 further includes an adhesive layer disposed between the reinforcement groove 700 and the bottom asphalt layer 300, between the repair groove 200 and the bottom asphalt layer 300, between the reinforcement grid 400 and the repair groove 200, between the reinforcement grid 400 and the bottom asphalt layer 300, and between the reinforcement grid 400 and the top asphalt layer 600. For example, the adhesive layer can be modified emulsified asphalt. The modified emulsified asphalt adhesive layer enhances the bonding strength and water stability between the road repair structure 800 and the road body 100, effectively solving the problem of insufficient durability in traditional repair structures and extending the service life after repair.

[0048] In one embodiment of the present invention, the road repair structure 800 further includes an annular groove, which is formed at the position of the sidewall of the repair groove 200 corresponding to the top asphalt layer 600, and the top asphalt layer 600 can fill the annular groove.

[0049] This improves the connection strength between the top asphalt layer 600 and the road surface body 100.

[0050] A second aspect of this utility model provides a road surface structure, including a road surface body 100 and a road surface repair structure 800 as described above, wherein the road surface repair structure 800 is disposed on the road surface body 100.

[0051] Furthermore, the road structure provided by this utility model includes the road repair structure 800 as described above, and therefore also possesses the advantages described above.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A road surface repair structure, characterized in that, include: Repair groove (200), said repair groove (200) is formed in the road surface body (100); A bottom asphalt layer (300) is laid into the repair groove (200); A reinforcing grid (400) is laid on the upper side of the bottom asphalt layer (300); Fastener (500), the fastener (500) extends from the reinforcing grid (400) through the bottom asphalt layer (300) and into the bottom of the repair groove (200); A top asphalt layer (600) is laid on the upper side of the reinforcing grid (400).

2. The road repair structure according to claim 1, characterized in that, The road repair structure (800) also includes: A reinforcement groove (700) is formed to the bottom of the repair groove (200), and the bottom asphalt layer (300) can be laid and cover the reinforcement groove (700).

3. The road repair structure according to claim 2, characterized in that, The number of the reinforcement grooves (700) is multiple, and the multiple reinforcement grooves (700) are arranged in a rectangular array to the bottom of the repair groove (200).

4. The road repair structure according to claim 1, characterized in that, The reinforced grid (400) includes: Grille frame (410); Multiple horizontal ribs (420) are connected to the grid frame (410) at transverse intervals; Multiple longitudinal ribs (430) are connected to the grid frame (410) at intervals along the longitudinal direction. Each longitudinal rib (430) intersects with each transverse rib (420) to form multiple hollow columns (440).

5. The road repair structure according to claim 4, characterized in that, The bottom asphalt layer (300) corresponding to the position of the hollow column (440) can be partially squeezed into the hollow column (440); The top asphalt layer (600) corresponding to the position of each of the hollow columns (440) can be partially squeezed into the hollow column (440).

6. The road repair structure according to claim 4, characterized in that, The reinforced grid (400) also includes: Multiple bottom punctures are provided, each of the bottom punctures being spaced apart on the side of the transverse rib (420) and / or the longitudinal rib (430) near the bottom asphalt layer (300), the bottom punctures being used to insert into the bottom asphalt layer (300).

7. The road repair structure according to claim 6, characterized in that, A first fastening mounting position is formed in the middle of the reinforcing grille (400), and a second fastening mounting position is formed at each of the four corners of the reinforcing grille (400). Each of the first fastening mounting positions and each of the second fastening mounting positions is provided with a fastener (500).

8. The road repair structure according to claim 2, characterized in that, The road repair structure (800) also includes: An adhesive layer is disposed between the reinforcing groove (700) and the bottom asphalt layer (300), between the repair groove (200) and the bottom asphalt layer (300), between the reinforcing grid (400) and the repair groove (200), between the reinforcing grid (400) and the bottom asphalt layer (300), and between the reinforcing grid (400) and the top asphalt layer (600).

9. The road repair structure according to any one of claims 1 to 8, characterized in that, The road repair structure (800) also includes: An annular groove is formed at a position on the sidewall of the repair groove (200) corresponding to the top asphalt layer (600), and the top asphalt layer (600) is able to fill the annular groove.

10. A road surface structure, characterized in that, include: Pavement body(100); The road repair structure (800) as described in any one of claims 1 to 9 is disposed on the road body (100).

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