Splicing type prefabricated plate pavement

Abstract

The utility model relates to the technical field of road engineering, one embodiment of the utility model provides a splicing type prefabricated plate pavement which comprises a concrete prefabricated plate, the concrete prefabricated plate is a cuboid and is provided with a connecting cavity, a plurality of connecting rib plates are arranged and embedded in the concrete prefabricated plate, connecting pieces are located in the concrete prefabricated plate, and the connecting rib plates are connected with the concrete prefabricated plate. The connecting pieces are uniformly arranged and embedded on the connecting rib plate, the connecting pieces are provided with connecting holes, the connecting holes lead to the connecting cavity, and the sealing pieces are in threaded connection with the connecting holes, are located in the connecting cavity and are used for filling the connecting cavity. According to the technical scheme, the technical problem that the service life of the concrete prefabricated plate pavement is shortened due to the connecting holes of the concrete prefabricated plate pavement in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of road engineering technology, and more specifically, to a spliced ​​precast pavement. Background Technology

[0002] In the field of road construction, precast concrete slab pavement is a common form of road paving, and its performance and quality directly affect the road's usability and lifespan. However, traditional precast concrete slab pavement faces many problems in practical applications, making it difficult to meet the ever-growing demands of modern transportation.

[0003] Traditional precast concrete slab pavements present serious safety hazards in the treatment of lifting holes or lifting locations (hereinafter collectively referred to as connection holes). If the connection holes are not properly treated after lifting, vehicles will experience bumps and jamming when passing through them. This not only affects the vehicle's ride comfort but also threatens its handling stability. At high speeds, it may even cause serious accidents such as tire blowouts, endangering driving safety.

[0004] Furthermore, the connection holes of traditional precast concrete slab pavements are exposed for extended periods, making them prone to water and dust accumulation. Once moisture and dust penetrate the interior of the precast concrete slabs, they corrode and damage the internal structure, further shortening the pavement's lifespan. This problem is particularly pronounced in areas with harsh climates, such as the rainy south and the dusty north. Long-term erosion reduces the strength of the precast concrete slabs, leading to premature pavement damage and increased road maintenance costs. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a spliced ​​precast slab pavement, which solves the technical problem that the connection holes of precast concrete slab pavement reduce the service life of precast concrete slab pavement in the prior art.

[0006] According to one aspect, at least one embodiment of this disclosure provides a precast slab pavement, comprising:

[0007] A precast concrete slab, wherein the precast concrete slab is a cuboid and has a connecting cavity;

[0008] Connecting stiffeners, wherein there are several connecting stiffeners arranged and embedded inside the precast concrete slab;

[0009] A connector is located inside the precast concrete slab. Several connectors are evenly arranged and embedded on the connecting rib plate. Each connector has a connecting hole that leads to the connecting cavity.

[0010] A sealing element is threadedly connected to the connecting hole and located within the connecting cavity, the sealing element being used to fill the connecting cavity.

[0011] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein the connecting cavity is hemispherical, the sealing element has a hemispherical portion, the hemispherical portion is located inside the connecting cavity, and the upper surface of the hemispherical portion is at the same horizontal plane as the surface of the precast concrete slab.

[0012] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein the seal further has an elastic portion and a threaded rod portion, the threaded rod portion being threadedly connected to the connecting hole, and the elastic portion being used for the connection between the threaded rod portion and the hemispherical portion.

[0013] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein there is a gap between the hemisphere and the connecting cavity, and the seal also has a buffer portion disposed on the hemisphere and located within the gap.

[0014] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein the elastic part is a spring.

[0015] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein the hemispherical portion has a bowl support portion, the bowl support portion has a support cavity for filling concrete, the bowl support portion is connected to the elastic portion, and the buffer portion is disposed on the outside of the bowl support portion.

[0016] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein the upper end of the bowl support has an arc-shaped portion, and the arc-shaped portion faces the support cavity.

[0017] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein the outer side of the cup support portion has an anti-detachment portion that extends into the buffer portion.

[0018] For example, at least one embodiment of this disclosure provides a spliced ​​precast pavement, wherein the bowl support portion further has an insertion portion located at the end of the bowl support portion, the insertion portion has an insertion groove, and the buffer portion extends into the insertion groove.

[0019] For example, at least one embodiment of this disclosure provides a precast slab pavement with interlocking sections, which further includes:

[0020] A reinforcing rib is provided on the connecting rib plate and located around the connector.

[0021] The beneficial effects of the embodiments disclosed herein are as follows:

[0022] In this disclosure, the sealing effect of the sealant effectively prevents moisture, dust, and other impurities from entering the connection cavity, protecting the internal structure of the precast concrete slab. In rainy southern regions or dusty northern regions, road surfaces are subject to long-term erosion from rainwater and dust. The spliced ​​precast slab pavement of this solution can better resist the damage caused by these natural factors, extending the service life of the pavement. The operation of removing the lifting ring and installing the sealant after hoisting is relatively simple. Compared with some existing technologies that involve complex repairs or treatments of the connection holes, this solution greatly simplifies the construction process. This step can be completed quickly during road construction, improving construction efficiency and shortening the road construction cycle. Furthermore, repairing the connection holes is not overly restricted by complex terrain or severe weather conditions. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0024] Figure 1 This is a schematic diagram of a wireframe structure in one embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 A magnified structural diagram of A in the middle;

[0026] Figure 3 for Figure 2 A magnified structural diagram of B in the diagram;

[0027] Figure 4 This is a cross-sectional structural diagram of the sealing element in this disclosure;

[0028] In the diagram: 1. Precast concrete slab, 101. Connecting cavity, 2. Connecting rib, 3. Connecting hole, 301. Seal, 4. Hemispherical part, 401. Elastic part, 402. Threaded rod part, 403. Gap, 404. Buffer part, 405. Bowl support part, 406. Support cavity, 407. Arc-shaped part, 408. Anti-detachment part, 409. Insertion part, 410. Insertion groove, 411. Detailed Implementation

[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0032] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 this disclosure.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-4As shown, it illustrates a spliced ​​precast pavement according to an embodiment of the present disclosure, including a precast concrete slab 1, which is a cuboid. The precast concrete slab 1 has a connecting cavity 101. There are several connecting stiffeners 2. Connecting members 3 are located inside the precast concrete slab 1, arranged and embedded inside the precast concrete slab 1, and set on the connecting stiffeners 2. The connecting members 3 have connecting holes 301, which lead to the connecting cavity 101. There are several connecting members 3 evenly arranged and embedded. A sealing member 4 is threadedly connected to the connecting hole 301 and is located inside the connecting cavity 101. The sealing member 4 is used to fill the connecting cavity 101.

[0036] For example, such as Figure 1 As shown, the precast concrete slab 1 adopts a cuboid design, with several connecting stiffeners 2 evenly arranged inside, enhancing the overall strength of the precast concrete slab 1 and effectively distributing the pressure on the road surface. When heavy objects such as vehicles travel on the precast concrete slab pavement, the connecting stiffeners 2 can evenly transmit the pressure to the entire precast concrete slab 1, avoiding road surface damage caused by localized stress concentration. In existing precast concrete slab pavements, if the connecting holes are not properly treated after hoisting, the connecting holes may become potential safety hazards when vehicles travel at high speeds. When the wheels pass through the connecting holes, they may experience bumps, jamming, etc., affecting vehicle handling stability and even potentially leading to serious accidents such as tire blowouts. This solution removes the hoisting ring after hoisting and installs a sealing element 4 to fill the connecting cavity 101, effectively eliminating this risk.

[0037] The installation of seal 4 makes the road surface smoother and the contact between the car tires and the road surface more compact, thereby enhancing tire grip. During high-speed driving, especially when cornering, accelerating, or braking, the vehicle can maintain better stability and reduce the occurrence of dangerous situations such as skidding and loss of control.

[0038] In existing technologies, if the connection holes are exposed for a long time, they are prone to water and dust accumulation, leading to corrosion and damage to the internal structure of the precast concrete slab. This solution, however, effectively prevents moisture, dust, and other impurities from entering the connection cavity 101 through the sealing effect of the sealing element 4, protecting the internal structure of the precast concrete slab. In rainy southern regions or dusty northern regions, road surfaces are subject to long-term erosion from rain and dust. The spliced ​​precast slab pavement of this solution can better resist the damage caused by these natural factors, extending the service life of the pavement. The operation of removing the lifting ring and installing the sealing element 4 after hoisting is relatively simple. Compared with some existing technologies that involve complex repairs or treatments of the connection holes, this solution greatly simplifies the construction process. This step can be completed quickly during road construction, improving construction efficiency and shortening the road construction cycle. Furthermore, the repair of the connection hole 301 is not overly restricted by complex terrain or severe weather conditions.

[0039] In some examples, the connecting cavity 101 is hemispherical, and the seal 4 has a hemispherical portion 401 located inside the connecting cavity 101. The upper surface of the hemispherical portion 401 is on the same horizontal plane as the surface of the precast concrete slab 1.

[0040] For example, such as Figure 2 As shown, the hemispherical connecting cavity 101 mates with the hemispherical portion 401. When the road surface is subjected to pressure from heavy objects such as vehicles, this hemispherical structure can evenly distribute the pressure to various parts of the precast concrete slab 1. Compared with other shapes of connecting cavity 101 combined with sealing element 4, this increases the contact area between sealing element 4 and precast concrete slab 1, while the hemispherical structure avoids stress concentration.

[0041] The upper surface of the hemispherical part 401 is on the same horizontal plane as the surface of the precast concrete slab 1, achieving a seamless connection with the road surface. When a vehicle travels on the road, the wheels will not experience any bumps due to unevenness at the connection point. On roads with high requirements for driving comfort, such as urban expressways, this seamless design makes the vehicle ride smoother, reduces the bumps felt by passengers, and improves driving comfort and safety.

[0042] In addition to being waterproof, this sealing structure effectively prevents dust, stones, and other impurities from entering the connection cavity 101. On roads in windy and sandy areas, the intrusion of impurities may affect the connection performance between precast concrete slabs, but the hemispherical sealing design can effectively avoid this problem, ensuring the integrity and stability of the road structure.

[0043] In some examples, the seal 4 also has an elastic part 402 and a threaded rod part 403, the threaded rod part 403 being threadedly connected to the connecting hole 301, and the elastic part 402 being used for the connection between the threaded rod part 403 and the hemispherical part 401.

[0044] For example, such as Figure 2 As shown, the threaded rod 403 of the seal 4 is threadedly connected to the connecting hole 301, providing a reliable mechanical connection. When the road surface is subjected to various complex forces from vehicle traffic, the threaded connection can effectively resist the relative displacement between the precast concrete slab 1 and the seal 4. At intersections with frequent braking and starting, the impact force of vehicles can easily cause the road structure to shake, while the stability of the threaded connection ensures that the seal 4 is always tightly fixed to the precast concrete slab 1, maintaining the overall integrity of the road surface.

[0045] The elastic part 402 connects the threaded rod part 403 and the hemispherical part 401, forming a structure that works together to bear force. When the road surface is subjected to external forces, the elastic part 402 can evenly transfer the force borne by the threaded rod part 403 to the hemispherical part 401, enhancing the overall stress performance of the seal 4. When large heavy vehicles pass by, this working mechanism can prevent damage or loosening of the seal due to uneven local stress, further ensuring the stability of the connection between the precast concrete slabs. The elastic part 402 has good elastic deformation capacity, which can effectively cope with the small deformation of the road surface caused by factors such as temperature changes and foundation settlement. In areas with large temperature changes, the road surface will expand and contract under the influence of diurnal temperature differences. The elastic part 402 can adapt to this deformation through its own expansion and contraction, avoiding structural damage caused by the rigid connection between the precast concrete slab 1 and the seal 4. While adapting to the deformation of the road surface, the elastic part 402 always maintains the sealing pressure on the connecting cavity 101. Whether under normal road surface use or under conditions of minor deformation, the elastic part 402 ensures that the hemispherical part 401 fits tightly against the connecting cavity 101, preventing the intrusion of moisture, dust, and other impurities. In rainy or windy and sandy environments, this dynamic sealing performance effectively protects the internal structure of the precast concrete slab 1 and extends the service life of the road surface.

[0046] In some examples, there is a gap 404 between the hemispherical portion 401 and the connecting cavity 101, and the seal 4 also has a buffer portion 405 disposed on the hemispherical portion 401 and located within the gap 404.

[0047] For example, such as Figure 2 As shown, the gap 404 between the hemispherical portion 401 and the connecting cavity 101, and the buffer portion 405 disposed on the hemispherical portion 401, together constitute a highly efficient buffer and shock absorption system. When a vehicle travels at high speed across the road surface, the impact force generated at the moment the wheel contacts the road surface is initially absorbed by the buffer portion 405. The material and structural design of the buffer portion 405 enable it to undergo elastic deformation, converting the impact energy into its own elastic potential energy. On highways, large buses travel at high speeds, and under the frequent wheel impacts, the buffer portion 405 can effectively mitigate the direct impact force on the precast concrete slab 1, reduce the risk of cracks and damage to the precast concrete slab due to impact, and extend the service life of the road surface.

[0048] The buffer section 405, located within the gap 404, not only absorbs impact energy but also effectively attenuates vibrations generated during vehicle operation. This vibration attenuation makes the road surface structure more stable and reduces problems such as loosening of the seals 4 and fatigue damage to connection points caused by vibration.

[0049] In some examples, the elastic part 402 is a spring.

[0050] For example, such as Figures 2-4 As shown, the elastic part 402 uses a spring, which gives the seal 4 excellent tensile strength. When the precast concrete pavement is subjected to various forces generated by vehicle traffic, especially under large tensile forces, the spring can effectively resist the separation tendency between the threaded rod part 403 and the hemispherical part 401 due to its high elastic limit and good toughness. When the pavement generates strong tensile forces due to foundation settlement or sudden braking of vehicles, the spring can tightly hold the threaded rod part 403 and the hemispherical part 401, preventing the seal 4 from coming out of the connection hole 301 of the precast concrete slab 1, ensuring a stable connection between the seal and the precast concrete slab, and maintaining the overall structural integrity of the pavement.

[0051] Springs have excellent cushioning properties; when a vehicle passes over a road surface, the vibrations and impacts generated are effectively buffered through the compression and extension of the spring. This cushioning effect not only reduces the direct impact on the seal 4 and the precast concrete slab 1, but also ensures that the seal 4 maintains a stable connection under vibration conditions.

[0052] In some examples, the hemispherical portion 401 has a bowl support portion 406, the bowl support portion 406 has a support cavity 407 for filling concrete, the bowl support portion 406 is connected to the elastic portion 402, and the buffer portion 405 is disposed on the outside of the bowl support portion 406.

[0053] For example, such as Figures 2-4 As shown, the support cavity 407 of the cup support portion 406 is used to fill concrete, and the filled concrete forms a solid whole with the cup support portion 406. When the road surface is subjected to various external forces generated by vehicle travel, such as strong shear and tensile forces, the concrete-filled cup support portion 406 can more effectively transfer the force to the precast concrete slab 1. The buffer portion 405 is located on the outside of the cup support portion 406, optimizing the buffer structure. When a vehicle travels over the road surface, the impact force generated by the wheel first acts on the buffer portion 405, which absorbs the impact energy through its own elastic deformation. The cup support portion 406 provides a stable support foundation for the buffer portion 405, making the buffer portion 405 more stable and efficient in absorbing impact energy. The buffer portion 405, combined with the spring elastic portion 402, forms a multi-layered buffer system. The spring is responsible for buffering larger vibrations and impact forces, while the buffer portion 405 mainly deals with localized, smaller impacts and vibrations.

[0054] In some examples, the upper end of the bowl support 406 has an arc-shaped portion 408 facing the support cavity 407.

[0055] For example, such as Figures 2-3As shown, the design of the arc-shaped portion 408 facing the drag cavity 407 ensures that when the vehicle passes over the cup support portion 406, the edge of the cup support portion 406 will not directly contact the wheel, thereby avoiding potential damage to the vehicle tire caused by the edge of the cup support portion 406.

[0056] In some examples, the outer side of the bowl support portion 406 has an anti-slip portion 409 that extends into the buffer portion 405.

[0057] For example, such as Figures 2-4 As shown, the anti-detachment part 409 on the outer side of the support part 406 extends into the buffer part 405, greatly strengthening the connection between the cup support part 406 and the buffer part 405. When the road surface is subjected to vehicle loads, various forces generated by vehicle movement, such as vertical pressure, horizontal friction, and impact, can be transmitted more effectively between the cup support part 406 and the buffer part 405. This makes the entire seal 4 act as a whole, better resisting external forces, preventing the buffer part 405 from separating from the cup support part 406, and thus ensuring the connection stability between the seal 4 and the precast concrete slab 1.

[0058] In some examples, the bowl support portion 406 also has a plug portion 410 located at the end of the bowl support portion 406, the plug portion 410 having a plug groove 411, and a buffer portion 405 extending into the plug groove 411.

[0059] For example, such as Figures 2-3 As shown, the insertion part 410 and insertion groove 411 at the end of the bowl support part 406 provide a stable insertion space for the tool for disassembling and assembling the seal 4. The buffer part 405 extends into the insertion groove 411 to ensure the aesthetic appearance. The buffer part 405 in the insertion groove 411 can undergo elastic deformation when an external tool is inserted, thereby ensuring the smooth insertion and removal of the tool and the overall aesthetic appearance of the spliced ​​precast pavement.

[0060] In some examples, reinforcing ribs are also included, which are disposed on the connecting rib plate 2 and located around the connector 3.

[0061] The reinforcing ribs are installed on the connecting rib plate 2 and located around the connector 3, effectively enhancing the collaborative working ability between the connecting rib plate 2 and the connector 3. When the precast concrete slab 1 is subjected to external forces such as pressure and tension from vehicle traffic, the reinforcing ribs tightly connect the connecting rib plate 2 and the connector 3, enabling them to transfer and disperse stress more efficiently, avoiding stress concentration in local areas of the connector 3 or the connecting rib plate 2, and greatly improving the overall structural strength of the precast concrete slab 1.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A type of spliced ​​precast pavement, characterized in that, include: A precast concrete slab (1), the precast concrete slab (1) is a cuboid, the precast concrete slab (1) has a connecting cavity (101). Connecting stiffeners (2), the connecting stiffeners (2) are several pieces, arranged and embedded inside the precast concrete slab (1); Connector (3), the connector (3) is located inside the precast concrete slab (1), the connector (3) is a number of evenly arranged embedded and set on the connecting stiffener (2), the connector (3) has a connecting hole (301), the connecting hole (301) leads to the connecting cavity (101). A sealing element (4) is threaded to the connecting hole (301) and located inside the connecting cavity (101). The sealing element (4) is used to fill the connecting cavity (101).

2. The spliced ​​precast pavement according to claim 1, characterized in that, The connecting cavity (101) is hemispherical, and the sealing element (4) has a hemispherical part (401). The hemispherical part (401) is located inside the connecting cavity (101), and the upper surface of the hemispherical part (401) is on the same horizontal plane as the surface of the precast concrete slab (1).

3. The spliced ​​precast pavement according to claim 2, characterized in that, The seal (4) also has an elastic part (402) and a threaded rod part (403), the threaded rod part (403) being threadedly connected to the connecting hole (301), and the elastic part (402) being used for the connection between the threaded rod part (403) and the hemispherical part (401).

4. The spliced ​​precast pavement according to claim 3, characterized in that, There is a gap (404) between the hemispherical part (401) and the connecting cavity (101), and the sealing member (4) also has a buffer part (405), which is disposed on the hemispherical part (401) and located in the gap (404).

5. A spliced ​​precast pavement according to claim 3, characterized in that, The elastic part (402) is a spring.

6. The spliced ​​precast pavement according to claim 4, characterized in that, The hemispherical part (401) has a bowl support part (406), the bowl support part (406) has a support cavity (407), the support cavity (407) is used to fill concrete, the bowl support part (406) is connected to the elastic part (402), and the buffer part (405) is disposed on the outside of the bowl support part (406).

7. A spliced ​​precast pavement according to claim 6, characterized in that, The upper end of the bowl support (406) has an arc-shaped portion (408), which faces the support cavity (407).

8. A spliced ​​precast pavement according to claim 6, characterized in that, The outer side of the bowl support (406) has an anti-slip part (409), which extends into the buffer part (405).

9. A spliced ​​precast pavement according to claim 6, characterized in that, The bowl support portion (406) also has a plug portion (410), which is located at the end of the bowl support portion (406). The plug portion (410) has a plug groove (411), and the buffer portion (405) extends into the plug groove (411).

10. A spliced ​​precast pavement according to claim 1, characterized in that, Also includes: The reinforcing ribs are provided on the connecting rib plate (2) and are located around the connector (3).

Images