Repair traction structure for old concrete pavement
By setting pulling and stretching holes on old concrete pavement and using prefabricated connecting components and pulling and stretching ribs to form a T-shaped structure, the problem of focusing only on surface layer repair and ignoring the cracking of the base layer in the prior art is solved, and the dual effects of base layer reinforcement and pavement restoration are achieved, extending the service life of the road and reducing economic costs.
Patent Information
- Application Number
- CN202421502296.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The prior art only focuses on the repair of surface layers when repairing cement concrete pavements, which fails to effectively solve the problem of cracking on the base layer, resulting in the restoration effect being not lasting and the pavement needs to be frequently replaced.
A restoration pulling structure for old concrete pavement is adopted. By setting pulling reinforcement holes on the road surface layer and the base layer, and using prefabricated connecting components and transverse and vertical pulling reinforcements to pull the road surface layer and the base layer together to form a T-shaped structure to enhance the strength of the base layer.
Through the use of the pulling structure, the base layer can be strengthened while repairing the road surface, preventing the continuous cracking of the cracks, extending the service life of the road, and partial repairs can be achieved, avoiding the economic cost of overall replacement.
Smart Images
Figure CN222715742U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of old road repair, in particular to a repair pulling structure for old concrete pavement. Background Art
[0002] Cement concrete pavement has the advantages of high strength and low cost, and is widely used in many areas and low-grade roads. However, the rigid surface layer of cement concrete roads is prone to fracture and other defects, and the later repair cycle is long, which affects traffic.
[0003] At present, the existing technology for repairing cement concrete pavements only considers the repair of the surface layer, that is, caulking treatment. This repair method is prone to continuous internal cracking soon after the repair, especially the disease at the joints. Once the base layer cracks further, the pavement structure can only be repaved, which will cause certain economic losses. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiment of the utility model is to provide a repair traction structure for old concrete pavement, which not only focuses on the repair of the surface layer, but also takes into account the reinforcement of the base layer.
[0005] The specific technical solution of the embodiment of the utility model is:
[0006] A repair traction structure for an old concrete pavement, the old concrete pavement comprising: a road base and a road surface layer located above the road base, the road surface layer comprising a first road surface layer area and a second road surface layer area, a rupture area being provided between the first road surface layer area and the second road surface layer area; a first traction bar hole is provided at a side wall of the first road surface layer area facing the rupture area, a second traction bar hole is provided at a side wall of the second road surface layer area facing the rupture area, and a third traction bar hole is provided at the road base below the rupture area;
[0007] The repair traction structure for old concrete pavement comprises:
[0008] a first transverse traction muscle, a portion of which is adapted to be inserted into the first traction muscle hole;
[0009] a second transverse traction rod, a portion of which is adapted to be inserted into the second traction rod hole;
[0010] A vertical tensioning rod, part of which is used to be inserted into the third tensioning rod hole;
[0011] A prefabricated connection assembly includes a first connection member, a second connection member and a third connection member, wherein the first connection member is welded to the end of the first transverse tensioning bar, the second connection member is welded to the end of the second transverse tensioning bar, the third connection member is welded to the end of the vertical tensioning bar, the first connection member is connected to one end of the third connection member, and the second connection member is connected to the other end of the third connection member.
[0012] Preferably, the prefabricated connection assembly is connected with the first transverse tensioning reinforcement, the second transverse tensioning reinforcement, and the vertical tensioning reinforcement to form a T-shaped structure.
[0013] Preferably, the first connecting member is provided with a first hole, the second connecting member is provided with a second hole, one end of the third connecting member is provided with a third hole, and the other end of the third connecting member is provided with a fourth hole, the first hole of the first connecting member and the third hole of the third connecting member are connected by bolts and nuts, and the second hole of the second connecting member and the fourth hole of the third connecting member are connected by bolts and nuts.
[0014] Preferably, the first hole extends along the length direction of the first connecting member; and / or the third hole extends along the length direction of the third connecting member.
[0015] Preferably, the second hole extends along the length direction of the second connecting member; and / or the fourth hole extends along the length direction of the third connecting member.
[0016] Preferably, the gap between the first transverse tensioning rod and the first tensioning rod hole is filled with an anchoring agent;
[0017] An anchoring agent is filled in the gap between the second transverse tensioning bar and the second tensioning bar hole;
[0018] An anchoring agent is filled in the gap between the vertical tensioning rod and the third tensioning rod hole.
[0019] Preferably, the prefabricated connection assembly is used to be arranged in the rupture area.
[0020] Preferably, a through hole is provided in the middle of the third connecting member, and the end of the vertical tensioning bar is inserted into the through hole of the third connecting member and connected by welding.
[0021] Preferably, the diameter of the first transverse traction rod is 2 mm to 4 mm smaller than the inner diameter of the first traction rod hole;
[0022] The diameter of the second transverse traction muscle is 2 mm to 4 mm smaller than the inner diameter of the second traction muscle hole;
[0023] The diameter of the vertical tensioning rod is 2 mm to 4 mm smaller than the inner diameter of the third tensioning rod hole.
[0024] Preferably, the area of the road base corresponding to the ruptured area has a void, and the third tensioning reinforcement hole is more than 15 cm away from the void.
[0025] The technical solution of the utility model has the following significant beneficial effects:
[0026] The repair pulling structure in the present application can use prefabricated connection components and pull the first area of the road surface layer of the old concrete road surface, the second area of the road surface layer and the road base corresponding to the cracked area through the first transverse pulling bar, the second transverse pulling bar and the vertical pulling bar, and then replace the concrete after pulling. The above method can strengthen the firmness between the road base and the replaced concrete, so as to complete the repair of the road surface while ensuring that the cracks will not continue to crack, and extend the service life of the repaired road. Secondly, the present application can realize the partial repair of the old cement concrete road surface, without the need to add or replace the entire concrete slab and the overall road surface, and the road traffic is not affected and it is economical. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.
[0028] Figure 1 This is a schematic diagram of the old concrete pavement repair area in the embodiment of the utility model;
[0029] Figure 2 This is a schematic diagram of the structure of the repair traction structure in the old concrete pavement in the embodiment of the utility model;
[0030] Figure 3 It is a schematic diagram of the connection between the prefabricated connection assembly and the first transverse tensioning reinforcement, the second transverse tensioning reinforcement, and the vertical tensioning reinforcement in the embodiment of the utility model;
[0031] Figure 4 It is a schematic diagram of the connection between the connecting member and the transverse tensioning reinforcement in the embodiment of the utility model;
[0032] Figure 5 It is a schematic diagram of the connection between the connecting member and the vertical tensioning bar in the embodiment of the utility model;
[0033] Figure 6It is a structural schematic diagram of the holes opened on the connecting member in the embodiment of the utility model.
[0034] Reference numerals in the above drawings:
[0035] 1. First transverse tension bar; 2. Second transverse tension bar; 3. Vertical tension bar; 4. Prefabricated connection assembly; 41. First connection piece; 411. First hole; 42. Second connection piece; 421. Second hole; 43. Third connection piece; 431. Third hole; 432. Fourth hole; 433. Through hole; 51. Bolt; 52. Nut; 6. Anchor; 100. Road base; 101. Third tension bar hole; 102. Void; 200. Road surface; 201. First area of road surface; 2011. First tension bar hole; 202. Second area of road surface; 2021. Second tension bar hole; 203. Cracked area; 204. Newly poured part of concrete; 205. Repair area; 206. Longitudinal joint. DETAILED DESCRIPTION
[0036] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention.
[0037] In order to not only focus on the repair of the surface layer, but also consider the reinforcement of the base layer, a repair traction structure for old concrete pavement is proposed in this application. Figure 1 Schematic diagram of the old concrete pavement repair area in the embodiment of the utility model, as shown in Figure 1 As shown, the old concrete pavement may include: a road base layer 100 and a road surface layer 200 located above the road base layer 100 .
[0038] The road surface layer 200 may include a first area 201 of the road surface layer and a second area 202 of the road surface layer, and a rupture area 203 is provided between the first area 201 of the road surface layer and the second area 202 of the road surface layer. The first area 201 of the road surface layer may be a normal plate, the plate where the second area 202 of the road surface layer is located is a diseased plate, and the rupture area 203 is located at the diseased plate. A longitudinal joint 206 is provided between the rupture area 203 and the normal plate. The diseased plate outside the rupture area 203 is the second area 202 of the road surface layer, and this part may be understood as the unruptured area 203. A repair area 205 may be neatly cut out on the diseased plate, and the repair area 205 may be chiseled out and discarded, the cutting boundary may be parallel to the longitudinal joint or transverse joint of the road, and the cutting surface may be roughened so as to make it better contact with the newly laid concrete.
[0039] Figure 2 FIG. 1 is a schematic diagram of the structure of the repair pulling structure in the old concrete pavement in the embodiment of the utility model. Figure 2 As shown, a first tensioning bar hole 2011 may be provided at the side wall of the first area 201 of the road surface layer facing the rupture area 203, a second tensioning bar hole 2021 may be provided at the side wall of the second area 202 of the road surface layer facing the rupture area 203, and a third tensioning bar hole 101 may be provided at the road base layer 100 located below the rupture area 203. The concrete debris and dust in the tensioning bar holes, the side wall of the first area 201 of the road surface layer facing the rupture area 203, and the side wall of the second area 202 of the road surface layer facing the rupture area 203 are cleaned up. The area of the road base layer 100 corresponding to the rupture area 203 may have a void 102. If so, the concrete debris and dust in the void 102 are cleaned up together.
[0040] Figure 3 Schematic diagram of the connection between the prefabricated connection assembly and the first transverse tensioning reinforcement, the second transverse tensioning reinforcement, and the vertical tensioning reinforcement in the embodiment of the utility model, as shown in FIG. Figure 2 and Figure 3 As shown, the repair tension structure for old concrete pavement may include: a first transverse tension bar 1, part of which is used to be inserted into the first tension bar hole 2011; a second transverse tension bar 2, part of which is used to be inserted into the second tension bar hole 2021; a vertical tension bar 3, part of which is used to be inserted into the third tension bar hole 101; a prefabricated connection assembly 4, including a first connection member 41, a second connection member 42 and a third connection member 43, the first connection member 41 is welded to the end of the first transverse tension bar 1, the second connection member 42 is welded to the end of the second transverse tension bar 2, the third connection member 43 is welded to the end of the vertical tension bar 3, the first connection member 41 is connected to one end of the third connection member 43, and the second connection member 42 is connected to the other end of the third connection member 43.
[0041] The prefabricated connection component 4 is arranged in the repair area 205 of the road surface layer 200, for example, it can be the rupture area 203 of the road surface layer 200. After the first connection member 41 of the prefabricated connection component 4 is connected to one end of the third connection member 43, and the second connection member 42 is connected to the other end of the third connection member 43, the prefabricated connection component 4 can pull the first area 201 of the road surface layer, the second area 202 of the road surface layer and the road surface base together to prevent the cracks from continuing to crack. After the prefabricated connection component 4 is arranged in the repair area 205 of the road surface layer 200, the road surface layer 200 can be backfilled, and the cast-in-place concrete in the repair area 205 is consistent with the elevation of the surrounding surface layer. After pouring, it should be compacted and smoothed in time, and sprayed with a curing agent for maintenance. All traffic can be restored only after the newly poured part of the concrete 204 is cured. As a feasible method, C35 early-strength concrete can be used to shorten the curing time.
[0042] The prefabricated connection assembly 4 is connected with the first transverse tensioning reinforcement 1 , the second transverse tensioning reinforcement 2 , and the vertical tensioning reinforcement 3 to form a T-shaped structure.
[0043] In order to facilitate the connection between the first connecting member 41 and one end of the third connecting member 43 and the connection between the second connecting member 42 and the other end of the third connecting member 43 during the construction process, it is feasible to: Figure 4 This is a schematic diagram of the connection between the connecting member and the transverse tensioning reinforcement in the embodiment of the utility model. Figure 5 Schematic diagram of the connection between the connecting member and the vertical tensioning bar in the embodiment of the utility model, as shown in FIG. Figures 3 to 5 As shown, the first connecting member 41 is provided with a first hole 411, the second connecting member 42 is provided with a second hole 421, one end of the third connecting member 43 is provided with a third hole 431, and the other end of the third connecting member 43 is provided with a fourth hole 432. The first hole 411 of the first connecting member 41 and the third hole 431 of the third connecting member 43 are connected by a bolt 51 and a nut 52, and the second hole 421 of the second connecting member 42 and the fourth hole 432 of the third connecting member 43 are connected by a bolt 51 and a nut 52.
[0044] Furthermore, Figure 6 Schematic diagram of the structure of the hole opened on the connecting member in the embodiment of the utility model, such as Figure 6As shown, the first hole 411 extends along the length direction of the first connecting member 41; and / or the third hole 431 extends along the length direction of the third connecting member 43. In this way, the length of the first hole 411 and / or the third hole 431 can be used as a transition section of the length of the first transverse tensioning bar 1, so that when the first transverse tensioning bar 1 and the first connecting member 41 are welded, it is not necessary to accurately calculate the distance between the end of the first transverse tensioning bar 1 and the end of the second transverse tensioning bar 2, and the position of the bolt 51 in the first hole 411 and / or the third hole 431 can be adjusted, thereby reserving errors for construction.
[0045] Similarly, the second hole 421 extends along the length direction of the second connecting member 42 ; and / or the fourth hole 432 extends along the length direction of the third connecting member 43 .
[0046] In order to make the transverse tensioning reinforcement more firmly connected to the first area 201 of the road surface, as Figure 2 As shown, the gap between the first transverse tensioning bar 1 and the first tensioning bar hole 2011 is filled with anchoring agent 6. Similarly, the gap between the second transverse tensioning bar 2 and the second tensioning bar hole 2021 is filled with anchoring agent 6. The gap between the vertical tensioning bar 3 and the third tensioning bar hole 101 is filled with anchoring agent 6.
[0047] In order to facilitate the filling of the anchor 6 in the gap between the first transverse tensioning bar 1 and the first tensioning bar hole 2011, so that the anchor 6 is fully filled in the gap, the diameter of the first transverse tensioning bar 1 is 2 mm to 4 mm smaller than the inner diameter of the first tensioning bar hole 2011. Similarly, the diameter of the second transverse tensioning bar 2 is 2 mm to 4 mm smaller than the inner diameter of the second tensioning bar hole 2021. The diameter of the vertical tensioning bar 3 is 2 mm to 4 mm smaller than the inner diameter of the third tensioning bar hole 101.
[0048] As feasible, Figure 3 and Figure 5 As shown, the middle part of the third connecting member 43 has a through hole 433, and the end of the vertical tensioning bar 3 is inserted into the through hole 433 of the third connecting member 43 and welded. In this way, the firmness of the third connecting member 43 and the vertical tensioning bar 3 after welding can be strengthened, and the possibility of breakage in the later stage can be reduced.
[0049] When the area of the road base 100 corresponding to the rupture area 203 has a gap 102, such as Figure 2 As shown, the third tensioning bar hole 101 is as far away from the gap 102 as possible by more than 15 cm, so as to ensure the connection strength between the vertical tensioning bar 3 and the road base 100.
[0050] A plurality of repair pulling structures may be provided in the repair area 205 of the road surface 200. The repair pulling structures, the first pulling bar holes 2011, the second pulling bar holes 2021 and the third pulling bar holes 101 may be provided at certain intervals along the extension direction of the ruptured area 203, for example, at intervals of 0.4 m, so that the repair pulling structures cover the entire ruptured area 203.
[0051] The repair pulling structure in the present application can use the prefabricated connection assembly 4 and pull the first area 201 of the road surface layer, the second area 202 of the road surface layer and the road base 100 corresponding to the cracked area 203 of the old concrete road surface through the first transverse pulling bar 1, the second transverse pulling bar 2 and the vertical pulling bar 3, and then replace the concrete after pulling. The above method can strengthen the firmness between the road base 100 and the replaced concrete, so as to complete the repair of the road surface while ensuring that the cracks will not continue to crack, and extend the service life of the repaired road. Secondly, the present application can realize the partial repair of the old cement concrete road surface, without the need to add or replace the entire concrete slab and the overall road surface, and the road traffic is not affected and it is economical.
[0052] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.
[0053] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A traction structure for repairing old concrete pavement, characterized in that: The old concrete pavement comprises: a road base and a road surface layer located above the road base, the road surface layer comprises a first road surface layer area and a second road surface layer area, a rupture area is provided between the first road surface layer area and the second road surface layer area; a first tensioning bar hole is provided at a side wall of the first road surface layer area facing the rupture area, a second tensioning bar hole is provided at a side wall of the second road surface layer area facing the rupture area, and a third tensioning bar hole is provided at the road base below the rupture area; The repair traction structure for old concrete pavement comprises: a first transverse traction muscle, a portion of which is adapted to be inserted into the first traction muscle hole; a second transverse traction rod, a portion of which is adapted to be inserted into the second traction rod hole; A vertical tensioning rod, part of which is used to be inserted into the third tensioning rod hole; A prefabricated connection assembly includes a first connection member, a second connection member and a third connection member, wherein the first connection member is welded to the end of the first transverse tensioning bar, the second connection member is welded to the end of the second transverse tensioning bar, the third connection member is welded to the end of the vertical tensioning bar, the first connection member is connected to one end of the third connection member, and the second connection member is connected to the other end of the third connection member.
2. The repair traction structure for old concrete pavement according to claim 1, characterized in that: The prefabricated connection assembly is connected with the first transverse tensioning reinforcement, the second transverse tensioning reinforcement, and the vertical tensioning reinforcement to form a T-shaped structure.
3. The repair traction structure for old concrete pavement according to claim 1, characterized in that: The first connecting member is provided with a first hole, the second connecting member is provided with a second hole, one end of the third connecting member is provided with a third hole, and the other end of the third connecting member is provided with a fourth hole. The first hole of the first connecting member and the third hole of the third connecting member are connected by bolts and nuts, and the second hole of the second connecting member and the fourth hole of the third connecting member are connected by bolts and nuts.
4. The repair traction structure for old concrete pavement according to claim 3 is characterized in that: The first hole extends along the length direction of the first connecting member; and / or the third hole extends along the length direction of the third connecting member.
5. The repair traction structure for old concrete pavement according to claim 3, characterized in that: The second hole extends along the length direction of the second connecting member; and / or the fourth hole extends along the length direction of the third connecting member.
6. The repair traction structure for old concrete pavement according to claim 1, characterized in that: An anchoring agent is filled in the gap between the first transverse tensioning rod and the first tensioning rod hole; An anchoring agent is filled in the gap between the second transverse tensioning bar and the second tensioning bar hole; An anchoring agent is filled in the gap between the vertical tensioning rod and the third tensioning rod hole.
7. The repair traction structure for old concrete pavement according to claim 1, characterized in that: The prefabricated connection assembly is used to be arranged in the rupture area.
8. The repair traction structure for old concrete pavement according to claim 1, characterized in that: The third connecting member has a through hole in the middle, and the end of the vertical tensioning bar is inserted into the through hole of the third connecting member and connected by welding.
9. The repair traction structure for old concrete pavement according to claim 6, characterized in that: The diameter of the first transverse traction muscle is 2 mm to 4 mm smaller than the inner diameter of the first traction muscle hole; The diameter of the second transverse traction muscle is 2 mm to 4 mm smaller than the inner diameter of the second traction muscle hole; The diameter of the vertical tensioning rod is 2 mm to 4 mm smaller than the inner diameter of the third tensioning rod hole.
10. The repair traction structure for old concrete pavement according to claim 1, characterized in that: The area of the road base corresponding to the ruptured area has a void, and the third tensioning reinforcement hole is more than 15 cm away from the void.