Fabricated concrete pavement slab

Abstract

The utility model discloses an assembly type concrete pavement slab which comprises a first prefabricated pavement slab and at least one first fastener, and the first fastener is connected with the first prefabricated pavement slab; a second prefabricated pavement slab and at least one second fastener, wherein the second fastener is connected with the second prefabricated pavement slab; through combination of the first prefabricated pavement slab, the second prefabricated pavement slab, the first fastener and the second fastener, the splicing assembly type concrete pavement does not need to be subjected to complex steps of paying off, formwork erecting, steel bar arranging and binding and the like on a construction site, the construction process is simplified, the construction efficiency is improved, and the construction cost is reduced. And working procedures and manual operation on a construction site are reduced, so that the construction efficiency is improved, and the construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to an assembled concrete road panel. Background Art

[0002] Traditional reinforced concrete pavement construction uses cast-in-place concrete technology, which requires a series of complex construction procedures such as laying out lines, supporting formwork, laying and tying steel bars, pouring and curing. The construction conditions are greatly affected by the climate and environment, and the pavement needs to be cured for more than 14 days after using cast-in-place concrete to meet the requirements for traffic. At the same time, the quality of each pavement is difficult to control. In terms of operation and maintenance, traditional cement concrete pavements are prone to shrinkage, creep, and cracking due to vehicle rolling and the influence of the natural environment. Since concrete pavements cannot be disassembled, damaged repairs need to be re-cast and maintained. Utility Model Content

[0003] In order to solve the technical problem that the concrete pavement in the prior art cannot be disassembled, the utility model provides an assembled concrete road panel.

[0004] The technical solution adopted by the utility model is:

[0005] An assembled concrete road panel comprises: a first prefabricated road panel and at least one first fastener, the first fastener is connected to the first prefabricated road panel; a second prefabricated road panel and at least one second fastener, the second fastener is connected to the second prefabricated road panel; one end of the first fastener is clamped with one end of the second fastener, and the other end of the first fastener is connected with the other end of the second fastener through a connecting piece.

[0006] Preferably, the first fastener includes: a first embedded portion, one end of which is embedded in the interior of the first prefabricated road panel; and a first connecting portion, which is connected to the other end of the first embedded portion.

[0007] Preferably, the second fastener comprises:

[0008] A second embedded part, one end of which is embedded in the second prefabricated road panel; a second connecting part, which is connected to the other end of the second embedded part; and the second connecting part is connected to the first connecting part via a connecting piece.

[0009] Preferably, a first avoidance groove is formed on the first connecting portion, and a first through hole is formed on the side wall of the first avoidance groove; a second avoidance groove is formed on the second connecting portion, and a second through hole is formed on the side wall of the second avoidance groove; the connecting member includes a bolt and a nut, and the bolt passes through the first through hole, the second through hole and is connected to the nut.

[0010] Preferably, the first fastener also includes: a first bending portion, the first bending portion is connected to the first connecting portion, and a first slot is formed between the first bending portion and the first connecting portion; the second fastener also includes: a second bending portion, the second bending portion is connected to the second connecting portion, and a second slot is formed between the bending portion and the second connecting portion; the opening direction of the second slot is opposite to the opening direction of the first slot, the first slot is used to accommodate part of the body of the second bending portion, and the second slot is used to accommodate part of the body of the first bending portion.

[0011] Preferably, at least two of the first embedded parts are provided, and a third through hole is formed in the first embedded parts.

[0012] Preferably, the third through holes on the two first embedded parts are arranged opposite to each other.

[0013] Preferably, at least two second embedded parts are provided, and at least two of the second embedded parts are provided with a fourth through hole.

[0014] Preferably, the fourth through holes on the two second embedded parts are arranged opposite to each other.

[0015] Preferably, a filler is provided in the gap between the first prefabricated road panel and the second prefabricated road panel.

[0016] The beneficial effects of the present invention are at least one of the following:

[0017] By adopting a combination of prefabricated road panels (first prefabricated road panels and second prefabricated road panels) and first fasteners and second fasteners, the spliced ​​assembled concrete pavement does not need to carry out complicated steps such as laying out lines, supporting formwork, laying out and tying steel bars at the construction site, which simplifies the construction process, reduces the number of processes and manual operations at the construction site, thereby improving construction efficiency and shortening the construction period.

[0018] When a prefabricated road panel needs to be replaced, it is only necessary to remove the connecting parts between the damaged prefabricated road panel and other adjacent road panels. After the connecting parts are removed, separate the first fastener and the second fastener, and the damaged prefabricated road panel can be removed from the road surface. Use the connecting parts to tightly connect the new panel or the repaired panel to the adjacent panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side cross-sectional structural schematic diagram of the first embodiment of the utility model;

[0020] Figure 2 It is a side view structural schematic diagram of the first fastener of the second embodiment of the utility model;

[0021] Figure 3It is a side structural schematic diagram of the second fastener of the second embodiment of the utility model;

[0022] Figure 4 It is a side structural schematic diagram of the first fastener and the second fastener in the second embodiment of the utility model in a connected state;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the first fastener and the second fastener in the second embodiment of the utility model in a separated state;

[0024] Figure 6 This is a schematic structural diagram of the first bent portion of the first fastener in Embodiment 3 of the present utility model;

[0025] Figure 7 This is a schematic structural diagram of the second bent portion of the second fastener in the third embodiment of the utility model;

[0026] Figure 8 This is a schematic diagram of the overall structure of the connection between the first prefabricated road panel and the second prefabricated road panel in Embodiment 4 of the utility model.

[0027] Figure numerals: 1. first prefabricated road panel; 101. first groove; 2. first fastener; 201. first embedded part; 202. first connecting part; 203. first bending part; 204; first slot; 205; first avoidance groove; 206. first through hole; 207. third through hole; 3. second prefabricated road panel; 301. second groove; 4. second fastener; 401. second embedded part; 402. second connecting part; 403. second bending part; 404; second slot; 405; second avoidance groove; 406. second through hole; 407. fourth through hole; 5. connecting part; 501. bolt; 502. nut. DETAILED DESCRIPTION

[0028] In order to make the purpose, scheme and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0029] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0030] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1 As shown, an assembled concrete road panel comprises: a first prefabricated road panel 1 and at least one first fastener 2, wherein the first fastener 2 is connected to the first prefabricated road panel 1; a second prefabricated road panel 3 and at least one second fastener 4, wherein the second fastener 4 is connected to the second prefabricated road panel 3; one end of the first fastener 2 is clamped with one end of the second fastener 4, and the other end of the first fastener 2 is connected with the other end of the second fastener 4 via a connecting member 5.

[0034] For reference, according to the road design requirements, the first prefabricated road panel 1 and the second prefabricated road panel 3 are cast in a professional factory using high-quality concrete according to standard sizes. The first fastener 2 can be made of metal or other solid materials, and is firmly fixed to the first prefabricated road panel 1 by welding, bolting or partially pre-embedded into the first prefabricated road panel 1. Similarly, the second fastener 4 can be made of metal or other solid materials, and is firmly fixed to the second prefabricated road panel 3 by welding, bolting or partially pre-embedded into the second prefabricated road panel 3.

[0035] The shape of the first fastener 2 can be T-shaped, L-shaped or other geometric shapes suitable for clamping, and the shape of the second fastener 4 matches the shape of the first fastener 2. When two road panels are spliced, the first fastener 2 and the second fastener 4 can be tightly clamped to reduce gaps and improve overall stability. Connectors 5 (such as bolts, pins or special fasteners) are used to pass through the reserved holes of the first fastener 2 and the second fastener 4 to fasten them, ensuring that the two panels are firmly connected to form a continuous and smooth road surface.

[0036] In a possible embodiment, a filler is provided in the gap between the first prefabricated road panel 1 and the second prefabricated road panel 3, and the joints of adjacent prefabricated road panels and the gaps between adjacent prefabricated road panels can be filled with polyurethane foam fillers. Polyurethane foam fillers have the characteristics of fast setting time, long service life, good elasticity and bonding ability, etc. Polyurethane foam fillers are injected between adjacent prefabricated panel fasteners and between panels to form a protective layer at the junction of components while speeding up the construction process, so as to avoid local damage caused by collision between two adjacent prefabricated panels due to the dislocation of the panels in the later stage. It is understandable that other fast-hardening materials can also be used to fill the gaps instead of polyurethane foam fillers.

[0037] Before using the connector, the first fastener and the second fastener are first connected. The connection process is actually a pre-positioning process, which ensures that the two panels are in the correct relative position before connection. This pre-positioning not only reduces the adjustment and positioning work in the subsequent connection process, but also improves the accuracy of installation.

[0038] In this embodiment, when a prefabricated road panel needs to be replaced, it is only necessary to dismantle the connector between the damaged prefabricated road panel and other adjacent road panels, separate the first fastener and the second fastener, and then remove the damaged prefabricated road panel from the road surface. Subsequently, the new panel or the repaired panel is tightly connected to the adjacent panel using the connector, thereby achieving fast and effective repair and replacement. The road surface load is mainly borne by the prefabricated panel, and the fastener is subjected to a smaller load, which can effectively reduce the probability of fastener damage.

[0039] Embodiment 2:

[0040] Based on the above embodiments, in a possible implementation manner, Figure 2 As shown, the first fastener 2 includes a first embedded portion 201 and a first connecting portion 202; one end of the first embedded portion 201 is embedded in the first prefabricated road panel 1; and the first connecting portion 202 is connected to the other end of the first embedded portion 201. Figure 3As shown, the second fastener 4 includes: a second embedded portion 401 and a second connecting portion 402, one end of the second embedded portion 401 is embedded in the second prefabricated road panel 3; the second connecting portion 402 is connected to the other end of the second embedded portion 401. Figure 4 As shown, one end of the second connection portion 402 is clamped with one end of the first connection portion 202 , and the other end of the second connection portion 402 is connected with the other end of the first connection portion 202 via a connector 5 .

[0041] For reference, in this embodiment, during the manufacturing process of the first prefabricated road panel 1 and the second prefabricated road panel 3, the first embedded part 201 and the second embedded part 401 are respectively embedded. Specifically, before pouring concrete, these embedded parts are placed in the mold, and then the concrete is poured to ensure a stable connection between the fastener and the road panel. The integrated design of the embedded part and the road panel significantly enhances the mechanical properties of the connection part, effectively disperses the load, and reduces the risk of road damage caused by weak connection points.

[0042] At the construction site, the first prefabricated road panel 1 with the first embedded part 201 and the second prefabricated road panel 3 with the second embedded part 401 are spliced, and the first connecting part 202 is clamped with the second connecting part 402 to form a preliminary connection. Subsequently, connecting parts (such as bolts, pins, etc.) are used to pass through the reserved holes of the two to tighten them to ensure a stable connection between the two road panels. Since the fasteners and road panels are pre-connected, only simple splicing and tightening operations are required at the construction site, and there is no need to perform complicated steps such as laying out lines, supporting molds, and laying and tying steel bars. This greatly simplifies the construction process and improves construction efficiency. When a prefabricated road panel needs to be repaired or replaced, it is only necessary to disassemble the relevant connecting parts, separate the first fastener and the second fastener, and the damaged panel can be easily removed. Subsequently, the new panel or the repaired panel is installed back in place according to the same steps.

[0043] like Figure 4 As shown, the connecting member 5 includes a bolt 501 and a nut 502. Figure 5 As shown, the first connecting portion 202 is provided with a first avoidance groove 205, the side wall of the first avoidance groove 205 is provided with a first through hole 206, the second connecting portion 402 is provided with a second avoidance groove 405, and the side wall of the second avoidance groove 405 is provided with a second through hole 406. The bolt 501 passes through the first through hole 206 and the second through hole 406 and is connected to the nut 502. The first avoidance groove 205 and the second avoidance groove 405 make the installation of the bolt 501 more convenient and reduce obstacles during the installation process. The precise positions of the first through hole 206 and the second through hole 406 ensure that the bolt 501 can pass through smoothly, further simplifying the installation steps.

[0044] At the construction site, the first prefabricated road panel 1 with the first fastener 2 and the second prefabricated road panel 3 with the second fastener 4 are preliminarily positioned to ensure that the relative positions of the two road panels are correct. Subsequently, the first connecting portion 202 of the first fastener 2 and the second connecting portion 402 of the second fastener 4 are clamped to ensure that they fit tightly and reduce gaps. After the clamping is completed, the bolt 501 is passed through the first through hole 206 on the first connecting portion 202 and the second through hole 406 on the second connecting portion 402. One end of the bolt 501 extends into the first avoidance groove 205 and the second avoidance groove 405, and the other end is connected to the nut 502. The nut 502 is rotated to make it fit tightly with the bolt 501, thereby firmly connecting the two prefabricated road panels together.

[0045] In a possible implementation, Figure 5 As shown, the first fastener 2 also includes: a first bending portion 203, the first bending portion 203 is connected to the first connecting portion 202, and a first slot 204 is formed between the first bending portion 203 and the first connecting portion 202; the second fastener 4 also includes: a second bending portion 403, the second bending portion 403 is connected to the second connecting portion 402, and a second slot 404 is formed between the bending portion 403 and the second connecting portion 402; the opening direction of the second slot 404 is opposite to the opening direction of the first slot 204, the first slot 204 is used to accommodate a partial body of the second bending portion 403, and the second slot 404 is used to accommodate a partial body of the first bending portion 203.

[0046] For reference, the first bending portion 203 includes a first horizontal connecting plate and a first vertical connecting plate, the first horizontal connecting plate is connected to the first connecting portion 202 and the first vertical connecting plate respectively, and a first slot 204 is formed between the first vertical connecting plate and the first connecting portion 202. In this embodiment, the opening direction of the first slot 204 faces upward. Similarly, the second bending portion 403 includes a second horizontal connecting plate and a second vertical connecting plate, the second horizontal connecting plate is connected to the second connecting portion 402 and the second vertical connecting plate respectively, and a second slot 404 is formed between the second vertical connecting plate and the second connecting portion 402. The direction of the second slot 404 faces downward, and the clamping of one end of the second connecting portion 402 with one end of the first connecting portion 202 means that the first vertical connecting plate is inserted into the second slot 404, and the second vertical connecting plate is inserted into the first slot 204. The vertical connecting plate of the first bending portion 203 (especially its width and thickness) needs to match the size of the second slot 404 so that it can be smoothly inserted and clamped. Likewise, the vertical connecting plate of the second bending portion 403 also needs to match the size of the first slot 204 .

[0047] Embodiment three:

[0048] On the basis of the above embodiment, in a possible implementation manner, in order to increase the bonding ability between the first fastener and the second fastener and the prefabricated road panel, as Figure 6 and Figure 7 As shown, at least two first embedded parts 201 are provided, and a third through hole 207 is opened on the first embedded parts 201. The third through holes 207 on the two first embedded parts 201 are arranged opposite to each other. At least two second embedded parts 401 are provided, and at least two second embedded parts 401 are each provided with a fourth through hole 407. The fourth through holes 407 on the two second embedded parts 401 are arranged opposite to each other.

[0049] It should be noted that during the manufacturing process of the prefabricated road panel, the holes on the embedded parts allow concrete to flow into and surround the embedded parts during pouring, thereby forming a good mechanical bite and bond between the embedded parts and the prefabricated panel. In this way, the embedded parts and the concrete matrix can form a whole, enhancing the firmness and durability of the connection. During the manufacturing process of the prefabricated road panel, fixing parts such as steel bars and steel bars can be inserted between the through holes arranged opposite to each other on the two embedded parts for reinforcement.

[0050] Embodiment 4:

[0051] like Figure 8 As shown, in order to reduce the gap between the first prefabricated road panel 1 and the second prefabricated road panel 2, at least one first groove 101 is provided on at least one side wall of the first prefabricated road panel 1, part of the body of the first fastener 2 is located in the first groove 101, the second prefabricated road panel 2 is connected to the second fastener 4, at least one second groove 301 is provided on at least one side wall of the second prefabricated road panel 3, the second fastener 4 is located in the second groove 301, and the first fastener 2 is clamped with the second fastener 4; wherein, when the first fastener 2 is clamped with the second fastener 4, the first prefabricated road panel 1 is fitted with the second prefabricated road panel 3.

[0052] Specifically, the first connecting portion 202 of the first fastener is completely located in the first groove 101 ; the first bending portion 203 of the first fastener and the first slot 204 formed between the first bending portion 203 and the first connecting portion 202 are located outside the first groove 101 .

[0053] The second connecting portion 402 and the second slot 404 of the second fastener are both located in the second groove 301 , the outer wall of the second slot is located in the same horizontal plane as the outer wall of the second prefabricated road panel 3 , and the opening direction of the second slot 404 is opposite to the opening direction of the first slot 204 .

[0054] like Figure 8As shown, when the road is paved, embedded fasteners are installed on the four sides of the prefabricated road panel located in the middle of the road. When the road is paved to the edge, no fasteners are embedded on the two sides of the prefabricated road panel located at the edge of the road, and embedded fasteners are required on the sides that need to be connected to other prefabricated road panels. The number of fasteners on each side of the prefabricated road panel can be adjusted. According to actual production needs, the first fastener can be embedded in the first prefabricated road panel or in the second prefabricated road panel, and the second fastener can be embedded in the second prefabricated road panel or in the first prefabricated road panel.

[0055] In summary, all components can be pre-processed and produced in the factory, with a high degree of standardization and industrialization, ensuring uniform flatness of the road surface during later installation. The volume of prefabricated panels is smaller than that of traditional prefabricated panels, which is convenient for transportation and installation. On-site filling and excavation are carried out simultaneously, and on-site assembly realizes full bolt assembly connection, effectively avoiding the occurrence of structural problems caused by uneven welding quality. The construction period is short, and it can be quickly built and opened to traffic, greatly improving the efficiency of road construction. The road load is mainly borne by the prefabricated panels, and the fasteners are subject to less load, which can effectively reduce the probability of fastener damage.

[0056] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An assembled concrete road panel, characterized in that: include: A first prefabricated road panel (1) and at least one first fastener (2), wherein the first fastener (2) is connected to the first prefabricated road panel (1); A second prefabricated road panel (3) and at least one second fastener (4), wherein the second fastener (4) is connected to the second prefabricated road panel (3); One end of the first fastener (2) is snap-fitted to one end of the second fastener (4), and the other end of the first fastener (2) is connected to the other end of the second fastener (4) via a connecting piece (5).

2. The assembled concrete road panel according to claim 1, characterized in that: The first fastener (2) comprises: A first embedded portion (201), one end of the first embedded portion (201) being embedded inside the first prefabricated road panel (1); A first connecting portion (202), wherein the first connecting portion (202) is connected to the other end of the first embedded portion (201).

3. The assembled concrete road panel according to claim 2, characterized in that: The second fastener (4) comprises: A second embedded portion (401), one end of the second embedded portion (401) being embedded inside the second prefabricated road panel (3); A second connecting portion (402), the second connecting portion (402) being connected to the other end of the second embedded portion (401); The second connecting portion (402) is connected to the first connecting portion (202) via a connecting member (5).

4. The assembled concrete road panel according to claim 3, characterized in that: A first avoidance groove (205) is provided on the first connection portion (202), and a first through hole (206) is provided on the side wall of the first avoidance groove (205); A second avoidance groove (405) is provided on the second connection portion (402), and a second through hole (406) is provided on the side wall of the second avoidance groove (405); The connecting member (5) comprises a bolt (501) and a nut (502), wherein the bolt (501) passes through the first through hole (206), the second through hole (406) and is connected to the nut (502).

5. The assembled concrete road panel according to claim 4, characterized in that: The first fastener (2) further comprises: A first bending portion (203), the first bending portion (203) being connected to the first connecting portion (202), and a first clamping groove (204) being formed between the first bending portion (203) and the first connecting portion (202); The second fastener (4) further comprises: A second bending portion (403), the second bending portion (403) is connected to the second connecting portion (402), and a second clamping groove (404) is formed between the second bending portion (403) and the second connecting portion (402); The opening direction of the second card slot (404) is opposite to the opening direction of the first card slot (204); the first card slot (204) is used to accommodate a portion of the body of the second bending portion (403); and the second card slot (404) is used to accommodate a portion of the body of the first bending portion (203).

6. The assembled concrete road panel according to claim 2, characterized in that: At least two of the first embedded parts (201) are provided, and a third through hole (207) is opened on the first embedded part (201).

7. The assembled concrete road panel according to claim 6, characterized in that: The third through holes (207) on the two first embedded parts (201) are arranged opposite to each other.

8. The assembled concrete road panel according to claim 3, characterized in that: At least two of the second pre-embedded parts (401) are provided, and at least two of the second pre-embedded parts (401) are provided with a fourth through hole (407).

9. The assembled concrete road panel according to claim 8, characterized in that: The fourth through holes (407) on the two second embedded parts (401) are arranged opposite to each other.

10. The assembled concrete road panel according to claim 1, characterized in that: A filler is arranged in the gap between the first prefabricated road panel (1) and the second prefabricated road panel (3).

Images